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光周期开花的表观遗传调控。

Epigenetic regulation of photoperiodic flowering.

机构信息

Department of Biology, Faculty of Science, Niigata University, Ikarashi, Niigata, Japan.

出版信息

Plant Signal Behav. 2010 Jul;5(7):788-91. doi: 10.4161/psb.5.7.11766. Epub 2010 Jul 1.

DOI:10.4161/psb.5.7.11766
PMID:20448475
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC3115027/
Abstract

The cytidine analogue 5-azacytidine, which causes DNA demethylation, induced flowering in the non-vernalization-requiring plants Perilla frutescens var. crispa, Silene armeria and Pharbitis nil (synonym Ipomoea nil) under non-inductive photoperiodic conditions, suggesting that the expression of photoperiodic flowering-related genes is regulated epigenetically by DNA methylation. The flowering state induced by DNA demethylation was not heritable. Changes in the genome-wide methylation state were examined by methylation-sensitive amplified fragment length polymorphism analysis. This analysis indicated that the DNA methylation state was altered by the photoperiodic condition. DNA demethylation also induced dwarfism, and the induced dwarfism of P. frutescens was heritable.

摘要

胞嘧啶类似物 5-氮杂胞苷能引起 DNA 去甲基化，在非诱导光周期条件下，它诱导非需春化植物紫苏、剪秋罗和白花牵牛（同义词为 Ipomoea nil）开花，表明光周期开花相关基因的表达受到 DNA 甲基化的表观遗传调控。DNA 去甲基化诱导的开花状态是不可遗传的。通过甲基化敏感扩增片段长度多态性分析检测全基因组的甲基化状态变化。该分析表明，DNA 甲基化状态受光周期条件的影响而改变。DNA 去甲基化还诱导矮化，紫苏的诱导矮化是可遗传的。

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本文引用的文献

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