Transgenerational epigenetic instability is a source of novel methylation variants.
Transgenerational epigenetic instability is a source of novel methylation variants.
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DOI:
10.1126/science.1212959
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发表时间:
2011-10-21
期刊:
影响因子:
--
通讯作者:
Ecker JR
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文献类型:
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作者:
Schmitz RJ;Schultz MD;Lewsey MG;O'Malley RC;Urich MA;Libiger O;Schork NJ;Ecker JR
Epigenetic information, which may affect an organisms’ phenotype, can be stored and stably inherited in the form of cytosine DNA methylation. Changes in DNA methylation can produce meiotically stable epialleles that affect transcription and morphology, but the rates of spontaneous gain or loss of DNA methylation are unknown. We examined spontaneously occurring variation in DNA methylation in Arabidopsis thaliana plants propagated by single-seed descent for 30 generations. 114,287 CG single methylation polymorphisms (SMPs) and 2485 CG differentially methylated regions (DMRs) were identified, both of which show patterns of divergence compared to the ancestral state. Thus, transgenerational epigenetic variation in DNA methylation may generate new allelic states that alter transcription providing a mechanism for phenotypic diversity in the absence of genetic mutation.
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影响因子:
56.9
作者:
Jacobsen, SE;Meyerowitz, EM
通讯作者:
Meyerowitz, EM
影响因子:
10.5
作者:
Liu, J;He, YH;Chen, XM
通讯作者:
Chen, XM
影响因子:
64.5
作者:
BENDER, J;FINK, GR
通讯作者:
FINK, GR
影响因子:
64.8
作者:
Mosher, Rebecca A.;Melnyk, Charles W.;Baulcombe, David C.
通讯作者:
Baulcombe, David C.
DOI:
10.1038/nrg2719
发表时间:
2010-03
期刊:
Nature reviews. Genetics
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