在小麦中的TaGeBP基因家族的全面更新的全基因组识别和表达模式
Shuqing Zhang1, Jianwen Ding1, Tianao Li1
1College of Agronomy, Qingdao Agricultural University, Qingdao 266109, China.
International journal of molecular sciences
|December 30, 2025
概括
这项研究确定了小麦中37个GLABROUS1增强剂结合蛋白 (GeBP) 基因,揭示了它们在植物发育和应激适应中的作用. 这些基因对小麦至关重要.
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:
- GLABROUS1增强剂结合蛋白 (GeBP) 家族是植物特有的转录因子,对发育和应激反应至关重要.
- 之前的研究在小麦中发现了11个GeBP基因,但缺乏全面的分析.
研究的目的:
- 对小麦 (Triticum aestivum L.) 中的TaGeBP基因家族进行全面的全基因组识别和系统分析.
- 研究TaGeBP基因的进化,表达和功能作用,特别是在对非生物压力的反应中.
主要方法:
- 使用更新的小麦基因组组件对TaGeBP基因进行全基因组识别.
- 遗传学分析,外子-内子结构,蛋白质动机分析和促进子cis作用元素分析.
- 组织特异性表达特征,压力条件下的定量实时PCR (qRT-PCR) 和亚细胞局部化.
主要成果:
- 鉴定了37个TaGeBP基因,比以前报告的要多得多,分为四个不同的基因组.
- 促进体分析显示了压力和植物激素反应元素的丰富,这表明它们在植物适应中的作用.
- 表达式概况显示偏好的根和表达,对盐和干旱压力有不同的反应;核定位证实了它们的转录因子功能.
结论:
- 塔盖BP家族的扩张归因于聚化和细分重复,进化是由净化选择塑造的.
- TaGeBP基因与通过植物激素信号传递调解植物对非生物应激的适应性反应有关.
- 这项研究为了解TaGeBP基因在小麦非生物应激耐受性中的功能意义提供了基础.
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