An epiallele of rice AK1 affects photosynthetic capacity

文献类型： 外文期刊

第一作者： Wei, Xiangjin

作者： Wei, Xiangjin;Tang, Shaoqing;Hu, Peisong;Song, Xianwei;Sun, Jing;Cao, Xiaofeng;Song, Xianwei;Sun, Jing;Cao, Xiaofeng;Wei, Liya

作者机构：

期刊名称：JOURNAL OF INTEGRATIVE PLANT BIOLOGY （ 影响因子：7.061； 五年影响因子：6.002 ）

ISSN： 1672-9072

年卷期： 2017 年 59 卷 3 期

页码：

收录情况： SCI

摘要： Epigenetic gene variants, termed epialleles, can broaden genetic and phenotypic diversity in eukaryotes. Here, we identify a natural epiallele of OsAK1, which encodes a rice adenylate kinase. The Epi-ak1 plants show albino in young leaf and panicle with abnormal chloroplast structures. We found that no nucleotide sequence variation but hypermethylation at promoter region caused silencing of OsAK1 (Os08g01770) in Epi-ak1 plants. OsAK1 localizes to chloroplast and many genes associated with photosynthesis processes were downregulated in Epi-ak1. Thus, the work identified a novel rice epiallele caused by DNA methylation changes, shedding light on significant roles of DNA methylation on rice development.

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