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Vernalization

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according to Richard Amasino, Lysenko inaccurately asserted that the vernalized state could be inherited, i.e. the offspring of a vernalized plant would behave as if they themselves had also been vernalized and would not require vernalization in order to flower quickly. Opposing this view and supporting Lysenko's claim, Xiuju Li and Yongsheng Liu have detailed experimental evidence from the USSR, Hungary, Bulgaria and China that shows the conversion between spring wheat and winter wheat, positing that "it is not unreasonable to postulate
202: 124:, farmers observed a traditional distinction between "winter cereals", whose seeds require chilling (to trigger their subsequent emergence and growth), and "spring cereals", whose seeds can be sown in spring, and germinate, and then flower soon thereafter. Scientists in the early 19th century had discussed how some plants needed cold temperatures to flower. In 1857 an American agriculturist 60:, or by an artificial equivalent. After vernalization, plants have acquired the ability to flower, but they may require additional seasonal cues or weeks of growth before they will actually do so. The term is sometimes used to refer to the need of herbal (non-woody) plants for a period of cold dormancy in order to produce new shoots and leaves, but this usage is discouraged. 153:
meaning Spring). After Lysenko the term was used to explain the ability of flowering in some plants after a period of chilling due to physiological changes and external factors. The formal definition was given in 1960 by a French botanist P. Chouard, as "the acquisition or acceleration of the ability
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expression through chromatin remodeling. Levels of VRN2 protein increase during long-term cold exposure as a result of inhibition of VRN2 turnover via its N-degron. The events of histone deacetylation at Lysine 9 and 14 followed by methylation at Lys 9 and 27 is associated with the vernalization
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drew wide attention due to its practical consequences for Russian agriculture. Severe cold and lack of winter snow had destroyed many early winter wheat seedlings. By treating wheat seeds with moisture as well as cold, Lysenko induced them to bear a crop when planted in spring. Later however,
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climates require vernalization and must experience a period of low winter temperature to initiate or accelerate the flowering process. This ensures that reproductive development and seed production occurs in spring and winters, rather than in autumn. The needed cold is often expressed in
219:("thale cress") is a much-studied model for vernalization. Some ecotypes (varieties), called "winter annuals", have delayed flowering without vernalization; others ("summer annuals") do not. The genes that underlie this difference in plant physiology have been intensively studied. 421:
Sung, Sibum; He, Yuehui; Eshoo, Tifani W; Tamada, Yosuke; Johnson, Lianna; Nakahigashi, Kenji; Goto, Koji; Jacobsen, Steve E; Amasino, Richard M (2006). "Epigenetic maintenance of the vernalized state in Arabidopsis thaliana requires LIKE HETEROCHROMATIN PROTEIN 1".
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who made a detailed discussion in his 1918 paper. Gassner was the first to systematically differentiate the specific requirements of winter plants from those of summer plants, and also that early swollen germinating seeds of winter cereals are sensitive to cold.
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Early research on vernalization focused on plant physiology; the increasing availability of molecular biology has made it possible to unravel its underlying mechanisms. For example, a lengthening daylight period (longer days),
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published his works on the effects of cold on cereal seeds, and coined the term "яровизация" ("jarovization") to describe a chilling process he used to make the seeds of winter cereals behave like spring cereals
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Devernalization can be brought about by high temperatures ... Onion sets ... are ... ready to flower ... temperatures above 26.7 Â°C (80 Â°F) ..., however, shifts the sets to the desired bulb-forming
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Gibbs, DJ; Tedds, HM; Labandera, AM; Bailey, M; White, MD; Hartman, S; Sprigg, C; Mogg, SL; Osborne, R; Dambire, C; Boeckx, T; Paling, Z; Voesenek, LACJ; Flashman, E; Holdsworth, MJ (21 December 2018).
128:, Secretary of the Ohio Board of Agriculture, reported the importance and effect of winter temperature on the germination of wheat. One of the most significant works was by a German plant physiologist 230:
transition (flower stalk elongates), then the floral transition (first flower appears). Bolting is a robust predictor of flower formation, and hence a good indicator for vernalization research.
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growers store sets at low temperatures, but devernalize them before planting, because they want the plant's energy to go into enlarging its bulb (underground stem), not making flowers.
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appears to confer competence to respond to floral inductive signals. A vernalized meristem retains competence for as long as 300 days in the absence of an inductive signal.
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pathway. A day-length mechanism is also important. Vernalization response works in concert with the photo-periodic genes CO, FT, PHYA, CRY2 to induce flowering.
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species, a period of cold is needed first to induce dormancy and then later, after the requisite period, re-emerge from that dormancy prior to flowering. Many
252:), which binds to and represses genes that promote flowering, thus blocking flowering. Winter annual ecotypes of Arabidopsis have an active copy of the gene 1069: 174:
cold temperatures are required for winter wheat plants to go from the vegetative to the reproductive state; the three interacting genes are called
1547: 1501: 911:"The FRIGIDA Complex Activates Transcription ofFLC, a Strong Flowering Repressor in Arabidopsis, by Recruiting Chromatin Modification Factors" 327:
It is possible to devernalize a plant by exposure to sometimes low and high temperatures subsequent to vernalization. For example, commercial
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Trevaskis, Ben; Hemming, Megan N.; Dennis, Elizabeth S. (August 2007). "The molecular basis of vernalization-induced flowering in cereals".
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Angel, Andrew; Song, Jie; Dean, Caroline; Howard, Martin (2011). "A Polycomb-based switch underlying quantitative epigenetic memory".
1573: 492:"Attenuation of FLOWERING LOCUS C activity as a mechanism for the evolution of summer-annual flowering behavior in Arabidopsis" 1238:
Crevillén, Pedro; Yang, Hongchun; Cui, Xia; Greeff, Christiaan; Trick, Martin; Qiu, Qi; Cao, Xiaofeng; Dean, Caroline (2014).
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Sung, Sibum; Amasino, Richard M. (2004). "Vernalization in Arabidopsis thaliana is mediated by the PHD finger protein VIN3".
1012:"Oxygen-dependent proteolysis regulates the stability of angiosperm polycomb repressive complex 2 subunit VERNALIZATION 2" 1354: 1583: 1578: 1552: 1374: 1144:
Heo, J. B.; Sung, S. (2011). "Vernalization-Mediated Epigenetic Silencing by a Long Intronic Noncoding RNA".
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meaning fire or the god of spring). Lysenko himself translated the term into "vernalization" (from the Latin
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Sokolski, K.; Dovholuk, A.; Dovholuk, L.; Faletra, P. (1997). "Axenic seed culture and micropropagation of
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expression, thus repression of flowering. Prolonged exposure to cold (vernalization) induces expression of
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Choi, Kyuha; Kim, Juhyun; Hwang, Hyun-Ju; Kim, Sanghee; Park, Chulmin; Kim, Sang Yeol; Lee, Ilha (2011).
704:"The conversion of spring wheat into winter wheat and vice versa: false claim or Lamarckian inheritance?" 72:. Typical vernalization temperatures are between 1 and 7 degrees Celsius (34 and 45 degrees Fahrenheit). 1511: 125: 1295: 1251: 1153: 1098: 1023: 967: 503: 215: 206: 100: 69: 1087:"Antisense COOLAIR mediates the coordinated switching of chromatin states atFLCduring vernalization" 1445: 1367: 825:"The significance of bolting and floral transitions as indicators of reproductive phase change in 1220: 1177: 991: 739: 521: 447: 373: 1440: 1240:"Epigenetic reprogramming that prevents trans-generational inheritance of the vernalized state" 201: 1542: 1414: 1349: 1277: 1212: 1169: 1126: 1049: 983: 940: 891: 850: 777: 731: 723: 684: 630: 613: 591: 539: 470: 439: 1496: 1267: 1259: 1204: 1161: 1116: 1106: 1039: 1031: 975: 930: 922: 881: 840: 769: 715: 674: 666: 622: 566: 529: 511: 431: 400: 297: 293:
transcripts. Vernalization is registered by the plant by the stable silencing of individual
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by chromatin remodeling is also thought to involve the cold-induced expression of antisense
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that could plausibly result in the conversion of spring to winter wheat or vice versa."
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Michaels, Scott D.; He, Yuehui; Scortecci, Katia C.; Amasino, Richard M. (2003).
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Chouard, P. (June 1960). "Vernalization and its relations to dormancy".
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during embryogenesis prevents the inheritance of the vernalized state.
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Csorba, Tibor; Questa, Julia I.; Sun, Qianwen; Dean, Caroline (2014).
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http://www.jic.ac.uk/news/2014/10/plants-require-coolair-flower-spring
112:, must go through a prolonged period of cold before flowering occurs. 105: 57: 53: 469:. Sunderland, Massachusetts (USA): Sinauer Associates. p. 605. 557:
Chouard, P. (1960). "Vernalization and its Relations to Dormancy".
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At the molecular level, flowering is repressed by the protein
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https://www.jic.ac.uk/staff/caroline-dean/vernalization.htm
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Roll-Hansen, Nils (1985). "A new perspective on Lysenko?".
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occurs by a sequence of two related events: first, the
590:. Cambridge (UK): Woodhead Publishing. p. 121. 1525: 1479: 1433: 1397: 210:rosette before vernalization, with no floral spike 870:"Seasonal and developmental timing of flowering" 1091:Proceedings of the National Academy of Sciences 496:Proceedings of the National Academy of Sciences 823:Pouteau, Sylvie; Albertini, Catherine (2009). 1375: 56:process by exposure to the prolonged cold of 8: 755: 753: 300:. The removal of silent chromatin marks at 1382: 1368: 1360: 818: 816: 584:Poltronieri, Palmiro; Hong, Yiguo (2015). 315:), vernalization must also activate a non- 157:Lysenko's 1928 paper on vernalization and 1271: 1120: 1110: 1043: 934: 885: 844: 678: 648: 646: 644: 533: 515: 702:Li, Xiuju; Liu, Yongsheng (6 May 2010). 587:Applied Plant Genomics and Biotechnology 16:Induction of a plant's flowering process 1548:Suppressed research in the Soviet Union 1502:Inheritance of acquired characteristics 793: 791: 352: 29:require vernalization before flowering. 416: 414: 281:response. The epigenetic silencing of 465:Taiz, Lincoln; Murphy, Angus (2015). 7: 1538:Collectivization in the Soviet Union 621:(3). Taylor & Francis: 261–278. 154:to flower by a chilling treatment." 571:10.1146/annurev.pp.11.060160.001203 405:10.1146/annurev.pp.11.060160.001203 307:Since vernalization also occurs in 276:) polycomb-like complex to reduce 14: 559:Annual Review of Plant Physiology 393:Annual Review of Plant Physiology 222:The reproductive phase change of 116:History of vernalization research 52:') is the induction of a plant's 887:10.1111/j.1365-313X.2010.04148.x 467:Plant Physiology and Development 136:In 1928, the Soviet agronomist 1322:Encyclopædia Britannica Online 833:Journal of Experimental Botany 1: 774:10.1016/j.tplants.2007.06.010 145:in Russian, originally from 399:. Annual Reviews: 191–238. 268:, which interacts with the 1600: 1036:10.1038/s41467-018-07875-7 1553:Politicization of science 868:Amasino, Richard (2010). 720:10.1007/s12038-010-0035-1 627:10.1080/00033798500200201 266:VERNALIZATION INSENSTIVE3 1574:Agricultural terminology 1355:Article in New Scientist 799:"Vernalisation response" 768:(8). Elsevier: 352–357. 1533:Bourgeois pseudoscience 1296:"Vernalisation pathway" 1166:10.1126/science.1197349 1112:10.1073/pnas.1419030111 762:Trends in Plant Science 517:10.1073/pnas.1531467100 237:, vernalization of the 927:10.1105/tpc.110.075911 708:Journal of Biosciences 671:10.1105/tpc.104.161070 341:Stratification (seeds) 211: 122:history of agriculture 42: 30: 1512:Mendelian inheritance 1072:23 April 2015 at the 1016:Nature Communications 204: 164:epigenetic mechanisms 126:John Hancock Klippart 63:Many plants grown in 24: 653:Amasino, R. (2004). 216:Arabidopsis thaliana 207:Arabidopsis thaliana 196:Arabidopsis thaliana 101:Arabidopsis thaliana 1446:Georgii Karpechenko 1264:10.1038/nature13722 1256:2014Natur.515..587C 1209:10.1038/nature10241 1158:2011Sci...331...76H 1103:2014PNAS..11116160C 1028:2018NatCo...9.5438G 980:10.1038/nature02195 972:2004Natur.427..159S 508:2003PNAS..10010102M 362:Cypripedium reginae 846:10.1093/jxb/erp173 260:), which promotes 212: 31: 1561: 1560: 1543:Pavlovian session 1415:Nikita Khrushchev 966:(6970): 159–163. 874:The Plant Journal 665:(10): 2553–2559. 614:Annals of Science 597:978-0-08-100068-7 476:978-1-60535-255-8 311:mutants (lacking 246:Flowering Locus C 233:In winter annual 94:, including some 1591: 1584:Winter phenomena 1579:Plant physiology 1384: 1377: 1370: 1361: 1337: 1336: 1330: 1328: 1314: 1308: 1307: 1305: 1303: 1292: 1286: 1285: 1275: 1250:(7528): 587–90. 1235: 1229: 1228: 1192: 1186: 1185: 1141: 1135: 1134: 1124: 1114: 1082: 1076: 1064: 1058: 1057: 1047: 1006: 1000: 999: 955: 949: 948: 938: 906: 900: 899: 889: 865: 859: 858: 848: 820: 811: 810: 808: 806: 795: 786: 785: 757: 748: 747: 699: 693: 692: 682: 650: 639: 638: 608: 602: 601: 581: 575: 574: 554: 548: 547: 537: 519: 487: 481: 480: 462: 456: 455: 418: 409: 408: 388: 382: 381: 357: 159:plant physiology 77:perennial plants 25:Many species of 1599: 1598: 1594: 1593: 1592: 1590: 1589: 1588: 1564: 1563: 1562: 1557: 1526:Soviet policies 1521: 1475: 1471:Nikolai Vavilov 1451:Zhores Medvedev 1441:WacĹ‚aw Gajewski 1429: 1393: 1388: 1346: 1341: 1340: 1326: 1324: 1318:"Vernalization" 1316: 1315: 1311: 1301: 1299: 1298:. 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Index


henbane
Latin
vernus
spring
flowering
winter
temperate
chill hours
perennial plants
fruit tree
monocarpic
winter annuals
biennials
ecotypes
Arabidopsis thaliana
cereals
wheat
history of agriculture
John Hancock Klippart
Gustav Gassner
Trofim Lysenko
plant physiology
epigenetic mechanisms

Arabidopsis thaliana
Arabidopsis thaliana
bolting
meristem
loci

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