激情水果 (Passiflora edulis) 中的PeHVA22基因家族:初步表征和表达概况的多样性
Zhimin Hou1, Jianxiang Liang1,2, Xinkai Cai1
1College of Life Sciences, Fujian Provincial Key Laboratory of Haixia Applied Plant Systems Biology, Center for Genomics and Biotechnology, Fujian Agriculture and Forestry University, Fuzhou, China.
Frontiers in plant science
|February 5, 2024
概括
在激情果中发现了6个HVA22基因,它们在干旱反应中发挥着独特的作用,并且在酸 (ABA) 信号传递中保留了功能. 这些基因对于激情果的生长,水果的发育和在压力下的性繁殖至关重要.
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.
- 压力生理学 压力生理学
背景情况:
- 激情果是一种易受气候变化影响的有价值的作物.
- 众所周知,HVA22基因是酸 (ABA) 反应和真核生物的应激耐受性的调节者.
研究的目的:
- 为了识别和描述激情果中的HVA22基因家族成员.
- 研究PeHVA22基因在应激反应,水果发育和繁殖中的潜在作用.
主要方法:
- 对HVA22基因的全基因组识别.
- 遗传学分析和基因结构比较.
- 在各种压力条件下 (ABA,干旱,盐,温度) 和在不同的组织/发育阶段进行表达分析.
主要成果:
- 鉴定出了6个HVA22基因 (PeHVA22s),预测是内细胞网膜局部化的.
- 遗传学分析揭示了四个子组,在子组内保留了结构.
- 大多数PeHVA22s是由干旱和ABA诱导的,但是由其他压力抑制的,表明特定的干旱耐受性作用.
- 观察到组织特异性表达,一些基因在水果发育和性繁殖中发挥作用.
- PeHVA22A和PeHVA22C显示了类似于大麦HVA22的保留角色.
结论:
- PeHVA22基因在激情果的ABA反应和干旱压力耐受性中起着重要作用.
- HVA22家族有助于激情果的生长,水果的发育和生殖过程.
- 表达模式表明涉及转录因子和CREs的复杂调节机制.
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