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通过比较转录组分析和WGCNA识别调节大豆种子发芽活力的枢纽基因

Long Miao¹, Lirong Chen¹, Huihui Gao¹

¹School of Agronomy, Anhui Agricultural University, Hefei, 230036, China.

BMC plant biology

|July 3, 2025

概括

这项研究确定了具有优越种子发芽活力的大豆基因型,并探索了遗传因素,包括抗氧化活性和GmHSP17.7B等特定基因,这些因素有助于在储存期间保持活力.

科学领域:

农业科学农业科学
植物生理学植物生理学
分子生物学分子生物学

背景情况:

豆类 [糖氨酸最大 (L.) Merr.] 在豆类中是蛋白质和油的全球重要作物.
高油脂和蛋白质含量使大豆种子比谷物更难储存.
种子发芽活力对于大豆储存和苗木建立至关重要,但人们对其了解甚少.

研究的目的:

为了确定大豆基因型与对比的种子发芽活力.
调查在老化过程中种子生存能力背后的生理和分子机制.
发现改善大豆种子活力的潜在遗传标.

主要方法:

选107个大豆加入的自然老化耐受性和124个加入的人工老化活力.
自然和人工老化的大豆种子的比较转录组分析.
权重基因共同表达网络分析 (WGCNA) 用于识别与生存能力相关的基因模块.
组织特异性表达分析和中心基因的评估,包括GmHSP17.7B.

主要成果:

确定了13种耐存的和9种对储存敏感的大豆基因型.
选了6种高活力和4种低活力基因型.
高发芽活力基因型通过增强抗氧化酶活性来延缓关键衰老节点.
中介umpurle2基因模块和GmHSP17.7B与保持种子发芽活性的相关.

结论:

查确定了可用于种子生存能力研究的有价值的大豆基因型.
对转录组的比较分析显示,在种子恶化过程中,抗氧化能力和表达特征的变化发生了变化.
这些发现为增强大豆种子活力提供了遗传资源和目标.

关键词:

在GmHSP17.7B中使用.枢纽基因枢纽基因枢纽基因种子发芽活力种子发芽活力豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆豆

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