文献类型: 中文期刊
作者: 代文双 1 ; 刘会云 1 ; 杜庆国 1 ; 邹枨 1 ; 王轲 1 ;
作者机构: 1.中国农业科学院作物科学研究所
关键词: 小麦;组蛋白去乙酰化酶抑制剂;染色质状态;CRISPR/cas9;转录组
期刊名称: 生物技术通报
ISSN: 1002-5464
年卷期: 2021 年 37 卷 001 期
页码: 1-14
收录情况: 北大核心 ; CSCD
摘要: 主要研究组蛋白去乙酰化酶抑制剂(HDACi)与染色质状态以及CRISPR/Cas9的编辑效率之间的关系.利用不同浓度的尼克酰胺(0,2.5和5 mmol/L)和丁酸钠(0,5和10 mmol/L)对小麦幼苗处理7 d和14 d,结果显示丁酸钠处理会抑制幼苗的生长,而尼克酰胺对幼苗影响较小.对尼克酰胺处理的小麦幼苗进行转录组测序,发现了一些有利于促进染色质状态开放的基因:6个甲基转移酶合成通路基因.此外对未发生编辑的TaAGO4a基因编辑转基因小麦材料的T2代进行尼克酰胺处理,结果显示5 mmol/L处理14 d时检测到1株3A和3B基因组均杂合编辑的植株,编辑效率从0提高到8.3%,其它处理组和对照组均没有检测到编辑.本研究证明尼克酰胺确实可以提高小麦基因编辑效率,为提高小麦基因编辑效率提供了一种新策略.
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