气候变化领域集成服务门户(CCPortal): Concerted genomic and epigenomic changes accompany stabilization of Arabidopsis allopolyploids

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DOI	10.1038/s41559-021-01523-y
	Concerted genomic and epigenomic changes accompany stabilization of Arabidopsis allopolyploids
	Jiang X.; Song Q.; Ye W.; Chen Z.J.
发表日期	2021
ISSN	2397-334X
起始页码	1382
结束页码	1393
卷号	5 期号:10
英文摘要	During evolution successful allopolyploids must overcome ‘genome shock’ between hybridizing species but the underlying process remains elusive. Here, we report concerted genomic and epigenomic changes in resynthesized and natural Arabidopsis suecica (TTAA) allotetraploids derived from Arabidopsisthaliana (TT) and Arabidopsisarenosa (AA). A. suecica shows conserved gene synteny and content with more gene family gain and loss in the A and T subgenomes than respective progenitors, although A. arenosa-derived subgenome has more structural variation and transposon distributions than A. thaliana-derived subgenome. These balanced genomic variations are accompanied by pervasive convergent and concerted changes in DNA methylation and gene expression among allotetraploids. The A subgenome is hypomethylated rapidly from F1 to resynthesized allotetraploids and convergently to the T-subgenome level in natural A. suecica, despite many other methylated loci being inherited from F1 to all allotetraploids. These changes in DNA methylation, including small RNAs, in allotetraploids may affect gene expression and phenotypic variation, including flowering, silencing of self-incompatibility and upregulation of meiosis- and mitosis-related genes. In conclusion, concerted genomic and epigenomic changes may improve stability and adaptation during polyploid evolution. ? 2021, The Author(s).
语种	英语
scopus关键词	Arabidopsis; epigenetics; gene expression regulation; genetics; human; plant genome; polyploidy; Arabidopsis; Epigenomics; Gene Expression Regulation, Plant; Genome, Plant; Humans; Polyploidy
来源期刊	Nature Ecology & Evolution
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/256852
作者单位	State Key Laboratory of Crop Genetics and Germplasm Enhancement, Nanjing Agricultural University, Nanjing, China; Department of Molecular Biosciences, The University of Texas at Austin, Austin, TX, United States
推荐引用方式 GB/T 7714	Jiang X.,Song Q.,Ye W.,et al. Concerted genomic and epigenomic changes accompany stabilization of Arabidopsis allopolyploids[J],2021,5(10).
APA	Jiang X.,Song Q.,Ye W.,&Chen Z.J..(2021).Concerted genomic and epigenomic changes accompany stabilization of Arabidopsis allopolyploids.Nature Ecology & Evolution,5(10).
MLA	Jiang X.,et al."Concerted genomic and epigenomic changes accompany stabilization of Arabidopsis allopolyploids".Nature Ecology & Evolution 5.10(2021).