Epigenomic Diversity in a Global Collection of Arabidopsis thaliana Accessions.

Epigenomic Diversity in a Global Collection of Arabidopsis thaliana Accessions.
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DOI:
10.1016/j.cell.2016.06.044
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发表时间:
2016-07-14
期刊:
影响因子:
64.5
通讯作者:
Ecker JR
Ecker JR
中科院分区:
生物学1区
文献类型:
--
作者:
Kawakatsu T;Huang SC;Jupe F;Sasaki E;Schmitz RJ;Urich MA;Castanon R;Nery JR;Barragan C;He Y;Chen H;Dubin M;Lee CR;Wang C;Bemm F;Becker C;O'Neil R;O'Malley RC;Quarless DX;1001 Genomes Consortium;Schork NJ;Weigel D;Nordborg M;Ecker JR

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The epigenome orchestrates genome accessibility, functionality and three-dimensional structure. Because epigenetic variation can impact transcription and thus phenotypes, it may contribute to adaptation. Here we report 1,107 high-quality single-base resolution methylomes and 1,203 transcriptomes from the 1001 Genomes collection of Arabidopsis thaliana. Although the genetic basis of methylation variation is highly complex, geographic origin is a major predictor of genome-wide DNA methylation levels and of altered gene expression caused by epialleles. Comparison to cistrome and epicistrome datasets identifies associations between transcription factor binding sites, methylation, nucleotide variation and co-expression modules. Physical maps for nine of the most diverse genomes reveals how transposons and other structural variants shape the epigenome, with dramatic effects on immunity genes. The 1001 Epigenomes Project provides a comprehensive resource for understanding how variation in DNA methylation contributes to molecular and non-molecular phenotypes in natural populations of the most studied model plant.
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