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Gene flow

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migration northward. The increased human activity brings increased roads and traffic, but also increases road maintenance, plowing, and snow compaction, inadvertently clearing a path for bobcats to travel by. The anthropogenic influence on bobcat migration pathways is an example of urban facilitation via opening up a corridor for gene flow. However, in the bobcat's southern range, an increase in roads and traffic is correlated with a decrease in forest cover, which hinders bobcat population gene flow through these areas. Somewhat ironically, the movement of bobcats northward is caused by human-driven global warming, but is also enabled by increased anthropogenic activity in northern ranges that make these habitats more suitable to bobcats.
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increased diversity, and therefore adaptation, in the urban populations of the Western black widow spider. Phenotypically, urban spiders are larger, darker, and more aggressive, which could lead to increased survival in urban environments. These findings demonstrate support for urban facilitation, as these spiders are actually able to spread and diversify faster across urban environments than they would in a rural one. However, it is also an example of how urban facilitation, despite increasing gene flow, is not necessarily beneficial to an environment, as Western black widow spiders have highly toxic venom and therefore pose risks for human health.
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which the introduced species begins to replace the native species, the native species becomes threatened and the biodiversity is reduced, thus making this phenomenon negative rather than a positive case of gene flow that augments genetic diversity. Introgression is the replacement of one species' alleles with that of the invader species. It is important to note that hybrids are sometime less "fit" than their parental generation, and as a result is a closely monitored genetic issue as the ultimate goal in conservation genetics is to maintain the genetic integrity of a species and preserve biodiversity.
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be especially detrimental for rare species coming into contact with more abundant ones which can occur between island and mainland species. Interbreeding between the species can cause a 'swamping' of the rarer species' gene pool, creating hybrids that supplant the native stock. This is a direct result of evolutionary forces such as natural selection, as well as genetic drift, which lead to the increasing prevalence of advantageous traits and homogenization. The extent of this phenomenon is not always apparent from
662:, also called urban fragmentation, in which alterations to the landscape that disrupt or fragment the habitat decrease genetic diversity. The second is called the urban facilitation model, and suggests that in some populations, gene flow is enabled by anthropogenic changes to the landscape. Urban facilitation of gene flow connects populations, reduces isolation, and increases gene flow into an area which would otherwise not have this specific genome composition. 514: 4235: 4245: 20: 839: 92:
sizes. Mobility plays an important role in dispersal rate, as highly mobile individuals tend to have greater movement prospects. Although animals are thought to be more mobile than plants, pollen and seeds may be carried great distances by animals, water or wind. When gene flow is impeded, there can be an increase in
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likely experienced allopatric speciation in some part due to differing geography, but that does not explain why we see so many different kinds of finches on the same island. This is due to adaptive radiation, or the evolution of varying traits in light of competition for resources. Gene flow moves in
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Urban facilitation can occur in many different ways, but most of the mechanisms include bringing previously separated species into contact, either directly or indirectly. Altering a habitat through urbanization will cause habitat fragmentation, but could also potentially disrupt barriers and create a
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advantage of introduced plant or animal. Nonnative species can threaten native plants and animals with extinction by hybridization and introgression either through purposeful introduction by humans or through habitat modification, bringing previously isolated species into contact. These phenomena can
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Gene flow can also be used to assist species which are threatened with extinction. When a species exist in small populations there is an increased risk of inbreeding and greater susceptibility to loss of diversity due to drift. These populations can benefit greatly from the introduction of unrelated
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loci in bobcats across the Great Lakes region, and found that longitude affected the interaction between anthropogenic landscape alterations and bobcat population gene flow. While rising global temperatures push bobcat populations into northern territory, increased human activity also enables bobcat
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but upon testing the mtDNA it is apparent that hybridization has occurred. Differential hybridization also occurs because some traits and DNA are more readily exchanged than others, and this is a result of selective pressure or the absence thereof that allows for easier transaction. In instances in
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Consequences of urban facilitation vary from species to species. Positive effects of urban facilitation can occur when increased gene flow enables better adaptation and introduces beneficial alleles, and would ideally increase biodiversity. This has implications for conservation: for example, urban
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among population samples. The more genetically differentiated two populations are, the lower the estimate of gene flow, because gene flow has a homogenizing effect. Isolation of populations leads to divergence due to drift, while migration reduces divergence. Gene flow can be measured by using the
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is an endemic species of the Galapagos Islands, but it evolved from a mainland ancestor of land iguana. Due to geographic isolation gene flow between the two species was limited and differing environments caused the marine iguana to evolve in order to adapt to the island environment. For instance,
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is another mechanism by which southern-dwelling animals might be forced northward towards cooler temperatures, where they could come into contact with other populations not previously in their range. More directly, humans are known to introduce non-native species into new environments, which could
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has wind-pollination as its primary means of propagation and the latter-plants carry out pollination through insects. Samples of the same species which grow on either side have been shown to have developed genetic differences, because there is little to no gene flow to provide recombination of the
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or a geographical isolation that does not allow populations of the same species to exchange genetic material. Physical barriers to gene flow are usually, but not always, natural. They may include impassable mountain ranges, oceans, or vast deserts. In some cases, they can be artificial, human-made
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There are a number of factors that affect the rate of gene flow between different populations. Gene flow is expected to be lower in species that have low dispersal or mobility, that occur in fragmented habitats, where there is long distances between populations, and when there are small population
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which is part of an international breeding program in which genetic materials are shared between zoological organizations in order to increase genetic diversity in the small populations. As a result of low reproductive success, artificial insemination with fresh/frozen-thawed sperm was developed
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The level of gene flow among populations can be estimated by observing the dispersal of individuals and recording their reproductive success. This direct method is only suitable for some types of organisms, more often indirect methods are used that infer gene flow by comparing allele frequencies
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Biologist Gogarten suggests "the original metaphor of a tree no longer fits the data from recent genome research". Biologists instead use the metaphor of a mosaic to describe the different histories combined in individual genomes and use the metaphor of an intertwined net to visualize the rich
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out of Africa after which local differentiation led to the establishment of regional population as we see them now. Gene flow plays an important role in maintaining a grade of similarities and preventing speciation. In contrast the single origin theory assumes that there was a common ancestral
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In some instances, when a species has a sister species and breeding capabilities are possible due to the removal of previous barriers or through introduction due to human intervention, species can hybridize and exchange genes and corresponding traits. This exchange is not always clear-cut, for
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found on Lord Howe Island were found to have substantially different flowering times correlated with soil preference, resulting in a reproductive barrier inhibiting gene flow. Species can live in the same environment, yet show very limited gene flow due to reproductive barriers, fragmentation,
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variation data in urban and rural spider populations and found evidence for increased gene flow in urban Western black widow spiders compared to rural populations. In addition, the genome of these spiders was more similar across rural populations than it was for urban populations, suggesting
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facilitation benefits an endangered species of tarantula and could help increase the population size. Negative effects would occur when increased gene flow is maladaptive and causes the loss of beneficial alleles. In the worst-case scenario, this would lead to genomic extinction through a
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to another. If the rate of gene flow is high enough, then two populations will have equivalent allele frequencies and therefore can be considered a single effective population. It has been shown that it takes only "one migrant per generation" to prevent populations from diverging due to
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specialist pollinators, or limited hybridization or hybridization yielding unfit hybrids. A cryptic species is a species that humans cannot tell is different without the use of genetics. Moreover, gene flow between hybrid and wild populations can result in loss of genetic diversity via
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Crispo E, Moore JS, Lee-Yaw JA, Gray SM, Haller BC (July 2011). "Broken barriers: human-induced changes to gene flow and introgression in animals: an examination of the ways in which humans increase genetic exchange among populations and species and the consequences for biodiversity".
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Bobwhite quail were translocated from the southern part of the United States to Ontario in order to increase population numbers and game for hunting. The hybrids that resulted from this translocation was less fit than the native population and were not adapted to survive the Northern
707:. It is also important to note that in the scheme of overall ecosystem health and biodiversity, urban facilitation is not necessarily beneficial, and generally applies to urban adapter pests. Examples of this include the previously mentioned Western black widow spider, and also the 71:
even when they are exchanging alleles, if the selection pressure is strong enough. Gene flow is an important mechanism for transferring genetic diversity among populations. Migrants change the distribution of genetic diversity among populations, by modifying
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pathway, or corridor, that can connect two formerly separated species. The effectiveness of this depends on individual species’ dispersal abilities and adaptiveness to different environments to use anthropogenic structures to travel. Human-driven
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Sika deer were introduced into Western Europe, and they reproduce easily with the native red deer. This translocation of Sika deer has led to introgression and there are no longer "pure" red deer in the region, and all can be classified as
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Barriers to gene flow need not always be physical. Sympatric speciation happens when new species from the same ancestral species arise along the same range. This is often a result of a reproductive barrier. For example, two palm species of
76:(the proportion of members carrying a particular variant of a gene). High rates of gene flow can reduce the genetic differentiation between the two groups, increasing homogeneity. For this reason, gene flow has been thought to constrain 1535:
Rogers, D. L., & Montalvo, A. M. (2004). Genetically appropriate choices for plant materials to maintain biological diversity. University of California. Report to the USDA Forest Service, Rocky Mountain Region, Lakewood,
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While gene flow can greatly enhance the fitness of a population, it can also have negative consequences depending on the population and the environment in which they reside. The effects of gene flow are context-dependent.
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Eldridge MD, King JM, Loupis AK, Spencer PB, Taylor AC, Pope LC, Hall GP (June 1999). "Unprecedented Low Levels of Genetic Variation and Inbreeding Depression in an Island Population of the Black-Footed Rock-Wallaby".
144:) and the net migration rate per generation (m). Using the approximation based on the Island model, the effect of migration can be calculated for a population in terms of the degree of genetic differentiation( 498: 272:
is < 0.25. This means there is some migration happening. Measures of population structure range from 0 to 1. When gene flow occurs via migration the deleterious effects of inbreeding can be ameliorated.
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Hominid Evolution: Past, Present, and Future : Proceedings of the Taung Diamond Jubilee International Symposium, Johannesburg and Mmabatho, Southern Africa, 27th January-4th February 1985
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has several inbred populations that live on various islands off the coast of Australia. The population is so strongly isolated that lack of gene flow has led to high rates of inbreeding.
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individuals who can increase diversity and reduce the amount of inbreeding, and potentially increase population size. This was demonstrated in the lab with two bottleneck strains of
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and prevent range expansion by combining the gene pools of the groups, thus preventing the development of differences in genetic variation that would have led to differentiation and
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alone. While some degree of gene flow occurs in the course of normal evolution, hybridization with or without introgression may threaten a rare species' existence. For example, the
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Steeves TE, Maloney RF, Hale ML, Tylianakis JM, Gemmell NJ (December 2010). "Genetic analyses reveal hybridization but no hybrid swarm in one of the world's rarest birds".
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were found to use different pollinators (bees and hummingbirds) that limited gene flow, resulting in genetic isolation, eventually producing two different species,
142: 1062:"Ecological speciation in an island snail: evidence for the parallel evolution of a novel ecotype and maintenance by ecologically dependent postzygotic isolation" 2383: 2358: 951:
which increased cub survival rate. A 2014 study found that high levels of genetic diversity and low levels of inbreeding were estimated in the breeding centers.
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resulting in gene flow between these populations. This gene flow has resulted in Neanderthal alleles in modern European population. Two theories exist for the
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Johnston C, Martin B, Fichant G, Polard P, Claverys JP (March 2014). "Bacterial transformation: distribution, shared mechanisms and divergent control".
100:(F) within a population. For example, many island populations have low rates of gene flow due to geographic isolation and small population sizes. The 757:
Viruses can transfer genes between species. Bacteria can incorporate genes from dead bacteria, exchange genes with living bacteria, and can exchange
4220: 3675: 773:'domains'. Thus determining the phylogenetic history of a species can not be done conclusively by determining evolutionary trees for single genes." 1881:
Genetic Pollution from Farm Forestry using eucalypt species and hybrids; A report for the RIRDC/L&WA/FWPRDC; Joint Venture Agroforestry Program
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Horizontal gene transfer (HGT) refers to the transfer of genes between organisms in a manner other than traditional reproduction, either through
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is an abundant species of duck that interbreeds readily with a wide range of other ducks and poses a threat to the integrity of some species.
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which already displayed the anatomical characteristics we see today. This theory minimizes the amount of parallel evolution that is needed.
3340: 84:. In some cases dispersal resulting in gene flow may also result in the addition of novel genetic variants under positive selection to the 1109:"Genetic structure and shell shape variation within a rocky shore whelk suggest both diverging and constraining selection with gene flow" 903:
throughout the world. The first is known as the multiregional model in which modern human variation is seen as a product of radiation of
4066: 2986: 379: 3728: 3388: 1605:, Anstett MC, Lexer C, Hutton I, Clarkson JJ, Norup MV, et al. (May 2006). "Sympatric speciation in palms on an oceanic island". 2288: 1995:
Miles LS, Rivkin LR, Johnson MT, Munshi-South J, Verrelli BC (September 2019). "Gene flow and genetic drift in urban environments".
1044: 936: revealed a genome-wide trend of increased shared variation in sympatry, indicative of pervasive interspecific gene flow.  2935: 3800: 3398: 2333: 4045: 4035: 3959: 3234: 3362: 1818:. Corvallis, OR: USDA Forest Service; Native Seed Network (NSN), Institute for Applied Ecology. pp. 26–27. Archived from 4173: 4040: 3820: 3564: 3266: 3155: 683: 3308: 1879: 1559:
Su H, Qu LJ, He K, Zhang Z, Wang J, Chen Z, Gu H (March 2003). "The Great Wall of China: a physical barrier to gene flow?".
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Allendorf FW, Leary RF, Spruell P, Wenburg JK (2001-11-01). "The problems with hybrids: setting conservation guidelines".
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Hedrick PW, Fredrickson R (2010). "Genetic rescue guidelines with examples from Mexican wolves and Florida panthers".
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Gemmell MR, Trewick SA, Crampton JS, Vaux F, Hills SF, Daly EE, Marshall BA, Beu AG, Morgan-Richards M (2018-11-26).
1460:"Genomic sweep and potential genetic rescue during limiting environmental conditions in an isolated wolf population" 3944: 3118: 3738: 3535: 3345: 3113: 3006: 731: 114: 101: 1816:
Grass cultivars: their origins, development, and use on national forests and grasslands in the Pacific Northwest
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Human activities such as movement of species and modification of landscape can result in genetic pollution,
816:. However, these molecular ancestors were likely to be present in different organisms at different times." 4205: 3854: 3795: 3723: 3685: 3586: 3557: 3530: 3525: 3123: 1750:"A test of the 'genetic rescue' technique using bottlenecked donor populations of Drosophila melanogaster" 1362:
Cunningham, Charles; Parra, Jorge E; Coals, Lucy; Beltrán, Marcela; Zefania, Sama; Székely, Tamás (2018).
1261:"Adaptive introgression of anticoagulant rodent poison resistance by hybridization between old world mice" 793: 278: 97: 4146: 4020: 3939: 3934: 3919: 3904: 3894: 3810: 3785: 3716: 3620: 3576: 3540: 3508: 3449: 3427: 3408: 3224: 3175: 3170: 3128: 2387: 735: 659: 522: 3271: 2955: 2906:
Storfer, Andrew (February 1999). "Gene flow and endangered species translocations: a topic revisited".
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Martin SH, Dasmahapatra KK, Nadeau NJ, Salazar C, Walters JR, Simpson F, et al. (November 2013).
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Bolnick DI, Nosil P (September 2007). "Natural selection in populations subject to a migration load".
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is the only way in which humans attempt to induce gene flow in ex situ situation. One example is the
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Stringer CB, Andrews P (March 1988). "Genetic and fossil evidence for the origin of modern humans".
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Grant PR, Grant BR (2002-04-26). "Unpredictable Evolution in a 30-Year Study of Darwin's Finches".
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Hasselgren M, Angerbjörn A, Eide NE, Erlandsson R, Flagstad Ø, Landa A, et al. (March 2018).
4156: 4108: 4101: 3698: 3610: 3471: 3432: 3256: 3200: 3190: 3150: 3064: 3059: 3054: 2972: 2718: 2541: 2202: 2064: 2020: 1917: 1860: 1730: 1638: 1602: 1584: 1437: 1364:"Social interactions predict genetic diversification: an experimental manipulation in shorebirds" 1241: 1190: 1089: 969: 943: 866: 694:) in the northern US and southern Canada. A study by Marrote et al. sequenced fourteen different 678:
This urban facilitation model was tested on a human health pest, the Western black widow spider (
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Prüfer K, Racimo F, Patterson N, Jay F, Sankararaman S, Sawyer S, et al. (January 2014).
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Song Y, Endepols S, Klemann N, Richter D, Matuschka FR, Shih CH, et al. (August 2011).
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across species boundaries. "Sequence comparisons suggest recent horizontal transfer of many
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and genetic swamping. These processes can lead to homogenization or replacement of local
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Jagoda E, Lawson DJ, Wall JD, Lambert D, Muller C, Westaway M, et al. (March 2018).
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Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences
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evolved via allopatric speciation, through limited gene flow and geographic isolation.
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that contained all of the genes ancestral to those shared among the three domains of
747: 626: 64: 2545: 2206: 1856: 1734: 1588: 1509:"Estimation of Effective Population Size and Migration Parameters From Genetic Data" 1441: 1245: 1093: 4188: 4136: 4081: 3914: 3909: 3650: 3261: 912: 905: 797: 770: 704: 655: 532: 1642: 1960: 1906: 1843:
Rhymer JM, Simberloff D (1996). "Extinction by Hybridization and Introgression".
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Proceedings of the National Academy of Sciences of the United States of America
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whose habitat is located on the opposite side of the Great Wall of China where
4076: 3977: 3899: 3886: 3775: 3635: 3320: 3207: 3185: 3138: 3133: 3081: 3049: 2746:"Genome-wide evidence for speciation with gene flow in Heliconius butterflies" 1718: 1276: 93: 81: 77: 59: 28: 19: 2860: 1902: 1726: 1458:
Adams JR, Vucetich LM, Hedrick PW, Peterson RO, Vucetich JA (November 2011).
1387: 1186: 1134: 711:, which was able to use roads by which to travel and overpopulate Australia. 536:, demonstrated a lower prevalence of genetic differentiation than the plants 4210: 4061: 3805: 3625: 3036: 2811: 2794: 2714: 2633: 2529: 1379: 1178: 838: 826: 789: 708: 630: 85: 2879: 2820: 2779: 2651: 2602: 2537: 2494: 2432: 2255: 2198: 2163: 2112: 2060: 2052: 2016: 1978: 1793: 1691: 1673: 1634: 1580: 1572: 1493: 1475: 1405: 1348: 1294: 1237: 1085: 2761: 2730: 1202: 4113: 3461: 3315: 809: 586: 182:. When there is one migrant per generation, the inbreeding coefficient ( 2584: 2561:"The complete genome sequence of a Neanderthal from the Altai Mountains" 2237: 2190: 1945:"The ectoparasites of hybrid ducks in New Zealand (Mallard x Grey Duck)" 1626: 1335:"Effects of life history traits on genetic diversity in plant species". 3755: 3655: 3503: 3498: 3212: 2964: 2722: 1943:
Bulgarella M, Quenu M, Shepherd LD, Morgan-Richards M (December 2018).
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Shan L, Hu Y, Zhu L, Yan L, Wang C, Li D, et al. (October 2014).
2144: 2103: 2086: 2008: 1077: 734:(direct uptake of genetic material by a cell from its surroundings), 585:. In human populations, genetic differentiation can also result from 49: 24: 2411:
Mallet, James (2005). "Hybridization as an invasion of the genome".
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Another example of urban facilitation is that of migrating bobcats (
2940: 2087:"Urbanization as a facilitator of gene flow in a human health pest" 3711: 3520: 3419: 837: 512: 18: 922:
Comparisons between sympatric and allopatric populations of 
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sometimes the hybrids may look identical to the original species
493:{\displaystyle Nm=((1/F_{ST})-1)/4={\tfrac {1-F_{ST}}{4*F_{ST}}}} 346:
The formula can be modified to solve for the migration rate when
3670: 805: 781: 762: 589:, due to differences in caste, ethnicity, customs and religion. 521:
When gene flow is blocked by physical barriers, this results in
2968: 2222:"Gene transfer agents: phage-like elements of genetic exchange" 1155:"Gene Flow and the Geographic Structure of Natural Populations" 2128:"Climate connectivity of the bobcat in the Great Lakes region" 1949:
International Journal for Parasitology: Parasites and Wildlife
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they are the only iguana that has evolved the ability to swim.
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has its own history and traces back to an individual molecule
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exchange and cooperative effects of horizontal gene transfer.
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the direction of what resources are abundant at a given time.
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affects gene flow of urban populations. The first is through
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Transfer of genetic variation from one population to another
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to another population through immigration of individuals.
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Miles LS, Johnson JC, Dyer RJ, Verrelli BC (July 2018).
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Evolution; International Journal of Organic Evolution
382: 352: 281: 248: 218: 188: 174:). This formula accounts for the proportion of total 150: 123: 88:
of a species or population (adaptive introgression.)
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Potts BM, Barbour RC, Hingston AB (September 2001).
4129: 4054: 3958: 3885: 3841: 3696: 3600: 3417: 3376: 3245: 3035: 1748:Heber S, Briskie JV, Apiolaza LA (13 August 2012). 2126:Marrotte RR, Bowman J, Wilson PJ (February 2020). 492: 368: 336: 264: 234: 204: 166: 136: 800:with rare HGT events suggest there was no single 682:). A study by Miles et al. collected genome-wide 1033:Frankham R, Briscoe DA, Ballou JD (2002-03-14). 742:between two bacterial cells in direct contact), 2220:Lang AS, Zhaxybayeva O, Beatty JT (June 2012). 1554: 1552: 1550: 2688: 2686: 2980: 1515:. Oxford University Press. pp. 329–346. 869:to occur as a result of differing geography. 792:in the presence of HGT. Combining the simple 8: 1513:Molecular Genetic Approaches in Conservation 517:Examples of speciation affecting gene flow. 178:variation among populations, averaged over 2987: 2973: 2965: 2941:Transcontainer research on biocontainment 2936:Co-Extra research on gene flow mitigation 2869: 2859: 2834:Schemske DW, Bradshaw HD (October 1999). 2810: 2769: 2641: 2592: 2245: 2153: 2143: 2102: 1968: 1783: 1773: 1681: 1483: 1395: 1284: 1124: 1113:Biological Journal of the Linnean Society 633:as a result of either a numerical and/or 477: 456: 442: 431: 410: 401: 381: 357: 351: 316: 301: 286: 280: 253: 247: 223: 217: 193: 187: 155: 149: 128: 122: 4221:Transgenerational epigenetic inheritance 2953:SIGMEA research on the biosafety of GMOs 1845:Annual Review of Ecology and Systematics 1310:Annual Review of Ecology and Systematics 1990: 1988: 1018: 2318:: CS1 maint: archived copy as title ( 2311: 1925: 1915: 788:, it is difficult to trace organismal 3984:Dialogues Concerning Natural Religion 2665:Tobias PV, Strong V, White W (1985). 2080: 2078: 1807:Aubry C, Shoal R, Erickson V (2005). 1453: 1451: 1036:Introduction to Conservation Genetics 7: 1148: 1146: 1144: 1028: 1026: 1024: 1022: 910:population originating in Africa of 337:{\displaystyle F_{ST}=1/(4N_{e}m+1)} 1322:10.1146/annurev.es.25.110194.001123 769:including across the boundaries of 3389:Evolutionary developmental biology 942:The captive genetic management of 861:fragmented landscapes such as the 654:There are two main models for how 14: 2448:Trends in Ecology & Evolution 1343:(1345): 1291–1298. January 1997. 67:. Populations can diverge due to 4243: 4234: 4233: 2487:10.1111/j.1365-294X.2010.04895.x 1662:Proceedings. Biological Sciences 1511:. In Smith TB, Wayne RK (eds.). 1464:Proceedings. Biological Sciences 1434:10.1046/j.1523-1739.1999.98115.x 1230:10.1111/j.1558-5646.2007.00179.x 4046:Extended evolutionary synthesis 3235:Gene-centered view of evolution 2799:Molecular Biology and Evolution 2622:Molecular Biology and Evolution 2413:Trends in Ecology and Evolution 1857:10.1146/annurev.ecolsys.27.1.83 746:(injection of foreign DNA by a 4174:Hologenome theory of evolution 4041:History of molecular evolution 3267:Evolutionarily stable strategy 3156:Last universal common ancestor 1039:. Cambridge University Press. 684:single nucleotide polymorphism 428: 419: 395: 392: 331: 306: 115:effective population size 1: 3968:Renaissance and Enlightenment 2920:10.1016/S0006-3207(98)00066-4 2460:10.1016/S0169-5347(01)02290-X 750:virus into the host cell) or 23:Gene flow is the transfer of 4179:Missing heritability problem 3806:Gamete differentiation/sexes 2226:Nature Reviews. Microbiology 2179:Nature Reviews. Microbiology 1961:10.1016/j.ijppaw.2018.09.005 1775:10.1371/journal.pone.0043113 1658:"Vulpes lagopus) population" 1153:Slatkin, Montgomery (1987). 500:, Nm = number of migrants. 4288: 3811:Life cycles/nuclear phases 3363:Trivers–Willard hypothesis 2425:10.1016/j.tree.2005.02.010 2334:"Horizontal Gene Transfer" 723: 614: 4229: 3309:Parent–offspring conflict 3114:Earliest known life forms 3002: 1719:10.1007/s10592-009-9999-5 1277:10.1016/j.cub.2011.06.043 1126:10.1093/biolinnean/bly142 1060:Stankowski S (May 2013). 940:Human-mediated gene flow: 752:GTA-mediated transduction 715:Gene flow between species 102:Black Footed Rock Wallaby 4162:Cultural group selection 4026:The eclipse of Darwinism 3998:On the Origin of Species 3973:Transmutation of species 2861:10.1073/pnas.96.21.11910 726:Horizontal gene transfer 720:Horizontal gene transfer 593:Human assisted gene-flow 4167:Dual inheritance theory 4006:History of paleontology 2908:Biological Conservation 2715:10.1126/science.3125610 2530:10.1126/science.1070315 1179:10.1126/science.3576198 865:are an ideal place for 605:Drosophila melanogaster 554:grows. This is because 3855:Punctuated equilibrium 3176:Non-adaptive radiation 3124:Evolutionary arms race 2053:10.1002/bies.201000154 1674:10.1098/rspb.2017.2814 1573:10.1038/sj.hdy.6800237 1476:10.1098/rspb.2011.0261 1349:10.1098/rstb.1996.0112 859:Fragmented Population: 850: 544:Heteropappus hispidus, 526:barriers, such as the 518: 494: 370: 369:{\displaystyle F_{ST}} 338: 266: 265:{\displaystyle F_{ST}} 242:= 1). The most common 236: 235:{\displaystyle F_{ST}} 206: 205:{\displaystyle F_{ST}} 168: 167:{\displaystyle F_{ST}} 138: 98:inbreeding coefficient 32: 4147:Evolutionary medicine 4021:Mendelian inheritance 3729:Biological complexity 3717:Programmed cell death 3409:Phenotypic plasticity 3129:Evolutionary pressure 3119:Evidence of evolution 3017:Timeline of evolution 2812:10.1093/molbev/msu210 2762:10.1101/gr.159426.113 2634:10.1093/molbev/msx314 2132:Ecology and Evolution 1707:Conservation Genetics 1538:www. f s I ed. u s/ r 1380:10.1093/beheco/ary012 841: 660:habitat fragmentation 523:Allopatric speciation 516: 509:Allopatric speciation 504:Barriers to gene flow 495: 371: 339: 267: 237: 207: 169: 139: 137:{\displaystyle N_{e}} 54:) is the transfer of 22: 4121:Teleology in biology 4016:Blending inheritance 3394:Genetic assimilation 3257:Artificial selection 2996:Evolutionary biology 1422:Conservation Biology 998:Biological dispersal 925:Heliconius melpomene 808:. Each contemporary 802:last common ancestor 786:phylogenetic markers 680:Latrodectus hesperus 675:of similar species. 563:Sympatric speciation 380: 350: 279: 246: 216: 186: 148: 121: 4270:Population genetics 4184:Molecular evolution 4142:Ecological genetics 4011:Transitional fossil 3801:Sexual reproduction 3641:endomembrane system 3570:pollinator-mediated 3526:dolphins and whales 3304:Parental investment 2852:1999PNAS...9611910S 2707:1988Sci...239.1263S 2585:10.1038/nature12886 2577:2014Natur.505...43P 2522:2002Sci...296..707G 2273:permanent dead link 2238:10.1038/nrmicro2802 2191:10.1038/nrmicro3199 1766:2012PLoSO...743113H 1627:10.1038/nature04566 1619:2006Natur.441..210S 1171:1987Sci...236..787S 957:Two populations of 528:Great Wall of China 108:Measuring gene flow 37:population genetics 4157:Cultural evolution 3272:Fisher's principle 3201:Handicap principle 3191:Parallel evolution 3055:Adaptive radiation 2958:2011-10-07 at the 2946:2011-09-26 at the 1668:(1875): 20172814. 1507:Neigel JE (1996). 1368:Behavioral Ecology 970:Mimulus cardinalis 944:threatened species 889:Human Populations: 878:Island Population: 867:adaptive radiation 851: 640:outward appearance 579:assortative mating 519: 490: 488: 366: 334: 262: 232: 202: 164: 134: 96:, measured by the 74:allele frequencies 58:material from one 33: 4257: 4256: 3873:Uniformitarianism 3826:Sex-determination 3331:Sexual dimorphism 3326:Natural selection 3230:Unit of selection 3196:Signalling theory 2676:978-0-8451-4202-8 2516:(5568): 707–711. 2475:Molecular Ecology 2145:10.1002/ece3.6049 2104:10.1111/mec.14783 2097:(16): 3219–3230. 2091:Molecular Ecology 2009:10.1111/mec.15221 2003:(18): 4138–4151. 1997:Molecular Ecology 1894:978-0-642-58336-9 1522:978-0-19-534466-0 1470:(1723): 3336–44. 1165:(4803): 787–792. 1078:10.1111/mec.12287 1066:Molecular Ecology 1008:Genetic admixture 863:Galapagos Islands 847:Galapagos Islands 617:Genetic pollution 611:Genetic pollution 575:genetic pollution 487: 4277: 4247: 4237: 4236: 4036:Modern synthesis 3796:Multicellularity 3791:Mosaic evolution 3676:auditory ossicle 3358:Social selection 3341:Flowering plants 3336:Sexual selection 2989: 2982: 2975: 2966: 2924: 2923: 2903: 2897: 2890: 2884: 2883: 2873: 2863: 2831: 2825: 2824: 2814: 2790: 2784: 2783: 2773: 2741: 2735: 2734: 2701:(4845): 1263–8. 2690: 2681: 2680: 2662: 2656: 2655: 2645: 2613: 2607: 2606: 2596: 2556: 2550: 2549: 2505: 2499: 2498: 2481:(23): 5090–100. 2470: 2464: 2463: 2443: 2437: 2436: 2408: 2402: 2401: 2399: 2398: 2392: 2386:. Archived from 2380: 2374: 2373: 2371: 2370: 2361:. Archived from 2355: 2349: 2348: 2346: 2345: 2336:. Archived from 2330: 2324: 2323: 2317: 2309: 2307: 2306: 2300: 2294:. Archived from 2293: 2285: 2278: 2274: 2266: 2260: 2259: 2249: 2217: 2211: 2210: 2174: 2168: 2167: 2157: 2147: 2138:(4): 2131–2144. 2123: 2117: 2116: 2106: 2082: 2073: 2072: 2035: 2029: 2028: 1992: 1983: 1982: 1972: 1940: 1934: 1933: 1927: 1923: 1921: 1913: 1911: 1905:. Archived from 1886: 1875: 1869: 1868: 1840: 1834: 1833: 1831: 1830: 1824: 1813: 1804: 1798: 1797: 1787: 1777: 1745: 1739: 1738: 1702: 1696: 1695: 1685: 1653: 1647: 1646: 1599: 1593: 1592: 1556: 1545: 1533: 1527: 1526: 1504: 1498: 1497: 1487: 1455: 1446: 1445: 1416: 1410: 1409: 1399: 1359: 1353: 1352: 1332: 1326: 1325: 1305: 1299: 1298: 1288: 1271:(15): 1296–301. 1256: 1250: 1249: 1213: 1207: 1206: 1150: 1139: 1138: 1128: 1104: 1098: 1097: 1057: 1051: 1050: 1030: 871:Darwin's finches 740:genetic material 548:Prunus armeniaca 541:Ziziphus jujuba, 499: 497: 496: 491: 489: 486: 485: 484: 465: 464: 463: 444: 435: 418: 417: 405: 375: 373: 372: 367: 365: 364: 343: 341: 340: 335: 321: 320: 305: 294: 293: 271: 269: 268: 263: 261: 260: 241: 239: 238: 233: 231: 230: 211: 209: 208: 203: 201: 200: 176:molecular marker 173: 171: 170: 165: 163: 162: 143: 141: 140: 135: 133: 132: 4287: 4286: 4280: 4279: 4278: 4276: 4275: 4274: 4260: 4259: 4258: 4253: 4225: 4152:Group selection 4125: 4050: 3954: 3881: 3843:Tempo and modes 3837: 3692: 3596: 3413: 3372: 3248: 3241: 3218:Species complex 3031: 3022:History of life 2998: 2993: 2960:Wayback Machine 2948:Wayback Machine 2932: 2927: 2905: 2904: 2900: 2891: 2887: 2846:(21): 11910–5. 2833: 2832: 2828: 2805:(10): 2663–71. 2792: 2791: 2787: 2756:(11): 1817–28. 2750:Genome Research 2743: 2742: 2738: 2692: 2691: 2684: 2677: 2664: 2663: 2659: 2615: 2614: 2610: 2558: 2557: 2553: 2507: 2506: 2502: 2472: 2471: 2467: 2454:(11): 613–622. 2445: 2444: 2440: 2410: 2409: 2405: 2396: 2394: 2390: 2382: 2381: 2377: 2368: 2366: 2357: 2356: 2352: 2343: 2341: 2332: 2331: 2327: 2310: 2304: 2302: 2298: 2291: 2289:"Archived copy" 2287: 2286: 2282: 2267: 2263: 2219: 2218: 2214: 2176: 2175: 2171: 2125: 2124: 2120: 2084: 2083: 2076: 2037: 2036: 2032: 1994: 1993: 1986: 1942: 1941: 1937: 1924: 1914: 1909: 1895: 1884: 1877: 1876: 1872: 1842: 1841: 1837: 1828: 1826: 1822: 1811: 1806: 1805: 1801: 1747: 1746: 1742: 1704: 1703: 1699: 1655: 1654: 1650: 1613:(7090): 210–3. 1601: 1600: 1596: 1558: 1557: 1548: 1534: 1530: 1523: 1506: 1505: 1501: 1457: 1456: 1449: 1418: 1417: 1413: 1361: 1360: 1356: 1334: 1333: 1329: 1307: 1306: 1302: 1265:Current Biology 1258: 1257: 1253: 1215: 1214: 1210: 1152: 1151: 1142: 1106: 1105: 1101: 1072:(10): 2726–41. 1059: 1058: 1054: 1047: 1032: 1031: 1020: 1016: 1003:Genetic erosion 994: 984:Bobwhite quail: 964:Mimulus lewisii 901:human evolution 895:interbred with 836: 822: 728: 722: 717: 652: 619: 613: 600: 595: 565: 511: 506: 473: 466: 452: 445: 406: 378: 377: 353: 348: 347: 312: 282: 277: 276: 249: 244: 243: 219: 214: 213: 189: 184: 183: 151: 146: 145: 124: 119: 118: 110: 43:(also known as 17: 12: 11: 5: 4285: 4284: 4281: 4273: 4272: 4262: 4261: 4255: 4254: 4252: 4251: 4241: 4230: 4227: 4226: 4224: 4223: 4218: 4213: 4208: 4203: 4202: 4201: 4191: 4186: 4181: 4176: 4171: 4170: 4169: 4164: 4159: 4149: 4144: 4139: 4133: 4131: 4127: 4126: 4124: 4123: 4118: 4117: 4116: 4111: 4106: 4105: 4104: 4094: 4089: 4084: 4079: 4074: 4064: 4058: 4056: 4052: 4051: 4049: 4048: 4043: 4038: 4033: 4028: 4023: 4018: 4013: 4008: 4003: 4002: 4001: 3992:Charles Darwin 3989: 3988: 3987: 3975: 3970: 3964: 3962: 3956: 3955: 3953: 3952: 3947: 3942: 3937: 3932: 3930:Non-ecological 3927: 3922: 3917: 3912: 3907: 3902: 3897: 3891: 3889: 3883: 3882: 3880: 3879: 3870: 3861: 3847: 3845: 3839: 3838: 3836: 3835: 3830: 3829: 3828: 3823: 3818: 3813: 3808: 3798: 3793: 3788: 3783: 3778: 3773: 3768: 3763: 3758: 3753: 3748: 3747: 3746: 3736: 3731: 3726: 3721: 3720: 3719: 3714: 3703: 3701: 3694: 3693: 3691: 3690: 3689: 3688: 3683: 3681:nervous system 3678: 3673: 3668: 3660: 3659: 3658: 3653: 3648: 3643: 3638: 3633: 3623: 3618: 3613: 3607: 3605: 3598: 3597: 3595: 3594: 3589: 3584: 3579: 3574: 3573: 3572: 3562: 3561: 3560: 3555: 3554: 3553: 3548: 3538: 3533: 3528: 3523: 3518: 3517: 3516: 3511: 3501: 3491: 3486: 3485: 3484: 3474: 3469: 3464: 3459: 3458: 3457: 3447: 3442: 3441: 3440: 3430: 3424: 3422: 3415: 3414: 3412: 3411: 3406: 3401: 3396: 3391: 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1935: 1912:on 2004-01-02. 1893: 1870: 1835: 1799: 1740: 1713:(2): 615–626. 1697: 1648: 1594: 1546: 1528: 1521: 1499: 1447: 1428:(3): 531–541. 1411: 1374:(3): 609–618. 1354: 1327: 1316:(1): 167–188. 1300: 1251: 1224:(9): 2229–43. 1208: 1140: 1119:(4): 827–843. 1099: 1052: 1045: 1017: 1015: 1012: 1011: 1010: 1005: 1000: 993: 990: 989: 988: 981: 974: 952: 937: 917: 886: 875: 835: 832: 827:phenotypically 821: 818: 780:"Using single 765:among diverse 732:transformation 724:Main article: 721: 718: 716: 713: 696:microsatellite 668:climate change 651: 648: 615:Main article: 612: 609: 599: 598:Genetic rescue 596: 594: 591: 564: 561: 538:Vitex negundo, 510: 507: 505: 502: 483: 480: 476: 472: 469: 462: 459: 455: 451: 448: 441: 438: 434: 430: 427: 424: 421: 416: 413: 409: 404: 400: 397: 394: 391: 388: 385: 363: 360: 356: 333: 330: 327: 324: 319: 315: 311: 308: 304: 300: 297: 292: 289: 285: 259: 256: 252: 229: 226: 222: 199: 196: 192: 161: 158: 154: 131: 127: 109: 106: 15: 13: 10: 9: 6: 4: 3: 2: 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3877:Catastrophism 3874: 3871: 3869: 3868:Macromutation 3865: 3864:Micromutation 3862: 3860: 3856: 3852: 3849: 3848: 3846: 3844: 3840: 3834: 3831: 3827: 3824: 3822: 3819: 3817: 3814: 3812: 3809: 3807: 3804: 3803: 3802: 3799: 3797: 3794: 3792: 3789: 3787: 3784: 3782: 3779: 3777: 3774: 3772: 3771:Immune system 3769: 3767: 3764: 3762: 3759: 3757: 3754: 3752: 3749: 3745: 3742: 3741: 3740: 3737: 3735: 3732: 3730: 3727: 3725: 3722: 3718: 3715: 3713: 3710: 3709: 3708: 3705: 3704: 3702: 3700: 3695: 3687: 3684: 3682: 3679: 3677: 3674: 3672: 3669: 3667: 3664: 3663: 3661: 3657: 3654: 3652: 3649: 3647: 3644: 3642: 3639: 3637: 3634: 3632: 3631:symbiogenesis 3629: 3628: 3627: 3624: 3622: 3619: 3617: 3614: 3612: 3609: 3608: 3606: 3604: 3599: 3593: 3590: 3588: 3585: 3583: 3580: 3578: 3575: 3571: 3568: 3567: 3566: 3563: 3559: 3556: 3552: 3549: 3547: 3544: 3543: 3542: 3539: 3537: 3534: 3532: 3529: 3527: 3524: 3522: 3519: 3515: 3512: 3510: 3507: 3506: 3505: 3502: 3500: 3497: 3496: 3495: 3492: 3490: 3487: 3483: 3480: 3479: 3478: 3475: 3473: 3470: 3468: 3465: 3463: 3460: 3456: 3453: 3452: 3451: 3448: 3446: 3443: 3439: 3436: 3435: 3434: 3431: 3429: 3426: 3425: 3423: 3421: 3416: 3410: 3407: 3405: 3402: 3400: 3397: 3395: 3392: 3390: 3387: 3385: 3382: 3381: 3379: 3375: 3369: 3366: 3364: 3361: 3359: 3356: 3352: 3349: 3347: 3344: 3342: 3339: 3338: 3337: 3334: 3332: 3329: 3327: 3324: 3322: 3319: 3317: 3314: 3310: 3307: 3305: 3302: 3301: 3300: 3299:Kin selection 3297: 3295: 3294:Genetic drift 3292: 3290: 3287: 3283: 3280: 3279: 3278: 3275: 3273: 3270: 3268: 3265: 3263: 3260: 3258: 3255: 3254: 3252: 3250: 3244: 3236: 3233: 3232: 3231: 3228: 3226: 3223: 3219: 3216: 3214: 3211: 3210: 3209: 3206: 3202: 3199: 3198: 3197: 3194: 3192: 3189: 3187: 3184: 3182: 3179: 3177: 3174: 3172: 3169: 3167: 3164: 3162: 3159: 3157: 3154: 3152: 3149: 3145: 3142: 3141: 3140: 3137: 3135: 3132: 3130: 3127: 3125: 3122: 3120: 3117: 3115: 3112: 3110: 3107: 3105: 3102: 3100: 3097: 3093: 3090: 3089: 3088: 3085: 3083: 3080: 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A.R. 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Index


alleles
population
population genetics
allele
genetic
population
drift
selection
allele frequencies
speciation
adaptation
gene pool
inbreeding
inbreeding coefficient
Black Footed Rock Wallaby
effective population size
molecular marker
loci

Allopatric speciation
Great Wall of China
Ulmus pumila
genetic pollution
assortative mating
outbreeding
endogamy
Genetic pollution
hybridization
introgression

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