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在Populus trichocarpa中的LBD转录因子的全基因组识别和基因表达网络

Hui Dang^1,2, Changhong Yu¹, Siyuan Nan¹

¹College of Forestry, Shanxi Agricultural University, Taigu, Shanxi, 030801, China.

|October 2, 2024

概括

这项研究在树中确定了55个侧面器官边界域 (LBD) 转录因子,透露了它们在复杂基因网络中的植物生长和耐压力方面的作用. 这些发现增强了对发育中的LBD基因功能的理解.

科学领域:

植物分子生物学植物分子生物学
基因组学就是基因组学.
植物生理学植物生理学

背景情况:

侧面器官边界域 (LBD) 蛋白质是植物特有的转录因子,对发育和应激反应至关重要.
了解像Populus trichocarpa这样的经济重要树种中的LBD基因家族对于农业和林业应用至关重要.

研究的目的:

为了识别和描述Populus trichocarpa中的LBD基因家族.
研究PtLBD基因的进化关系,基因结构和调控元素.
阐明 PtLBDs 在树生长,发育和应激耐受性中的作用.

主要方法:

遗传学分析将PtLBD TFs分类为子家族和组.
基因结构分析以了解拼接模式的变化.
在促进区域中识别转录因子结合点和 cis 元素.
基因组对线性分析以比较植物物种中的PtLBD基因.
基因本体学 (GO) 丰富和表达模式分析.
多层层次的层次基因网络 (ML-hGRN) 构建.

主要成果:

55个PtLBDTF被确定并分为两个子家族和七个组.
发现了与激素信号传递和应激反应相关的基因结构变异和cis元素.
基因组分析显示,与尤迪科特比单一植物更强烈的对线性.
除其他外,PtLBD7和PtLBD20与生长和发展有关.
ML-hGRNs揭示了PtLBDs通过复杂的网络调节的生长和承受压力.

结论:

树中的PtLBD基因家族多样化,在植物生长和应激适应中起着重要作用.
基因重复事件和监管因素有助于PtLBD的功能多样化.
PtLBDs调解复杂的基因网络,对发展和应激弹性至关重要.

关键词:

表达方式表达模式.基因网络基因网络在LBD家族中.这是一棵树.合成分析是指合成分析.

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