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扩张和适应性演变的扩张和适应性的进化

Xiao Feng^1,2, Guohong Li¹, Weihong Wu¹

¹State Key Laboratory of Biocontrol, Guangdong Key Laboratory of Plant Resources, School of Life Sciences, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Sun Yat-sen University, Guangzhou, 510275 China.

Marine life science & technology

|June 5, 2023

概括

红树林植物,特别是Avicennia,显示出WRKY基因的扩张,这些基因对于适应盐环境至关重要. 基因复制和差异表达有助于这些植物耐受极端条件.

科学领域:

植物基因组学植物基因组学
进化生物学是进化的生物学.
分子适应分子适应.

背景情况:

红树林生长在潮区,极端环境条件下.
WRKY转录因子 (TFs) 调节植物对非生物性压力因素的反应.
红树林属Avicennia面临着重大的环境挑战.

研究的目的:

在阿维森尼亚研究WRKY基因的景观和进化模式.
了解WRKYs在红树林适应盐度中的作用.
分析WRKYs在Avicennia海洋中的扩张和功能分歧.

主要方法:

奥米数据分析 (基因组学和转录组学).
对WRKY基因家族进行比较基因组分析.
实验盐梯度暴露和根基因表达概况.

主要成果:

与内陆亲属相比,阿维森尼亚表现出WRKY基因的显著扩张.
最近发生的两个全基因组复制 (WGD) 事件有助于WRKY扩张,具有高保留率.
在不同的盐度下,WRKY基因的差异表达表明它们在盐分耐受性中起作用.
WRKYs与其他基因之间的相互作用增强了盐分耐受性和适应性.

结论:

WRKY基因家族的扩张和多样化是Avicennia适应潮区的关键.
全基因组重复在塑造红树林中WRKY曲目中起到了至关重要的作用.
了解Avicennia中的WRKY为植物适应环境压力的机制提供了洞察力.

关键词:

适应适应适应飞鸟年纪 (Avicennia) 是一个飞鸟年纪.红树林是一种红树林.转录因子是一种转录因子.这就是WRKYY.整个基因组的重复.

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