作者
Patrick P Edger, Ronald Smith, Michael R McKain, Arielle M Cooley, Mario Vallejo-Marin, Yaowu Yuan, Adam J Bewick, Lexiang Ji, Adrian E Platts, Megan J Bowman, Kevin L Childs, Jacob D Washburn, Robert J Schmitz, Gregory D Smith, J Chris Pires, Joshua R Puzey
发表日期
2017/9/1
期刊
The Plant Cell
卷号
29
期号
9
页码范围
2150-2167
出版商
American Society of Plant Biologists
简介
Recent studies have shown that one of the parental subgenomes in ancient polyploids is generally more dominant, having retained more genes and being more highly expressed, a phenomenon termed subgenome dominance. The genomic features that determine how quickly and which subgenome dominates within a newly formed polyploid remain poorly understood. To investigate the rate of emergence of subgenome dominance, we examined gene expression, gene methylation, and transposable element (TE) methylation in a natural, <140-year-old allopolyploid (Mimulus peregrinus), a resynthesized interspecies triploid hybrid (M. robertsii), a resynthesized allopolyploid (M. peregrinus), and progenitor species (M. guttatus and M. luteus). We show that subgenome expression dominance occurs instantly following the hybridization of divergent genomes and significantly increases over generations …
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PP Edger, R Smith, MR McKain, AM Cooley… - The Plant Cell, 2017