乙烯反应因子CbuERF114调节了卡塔尔帕邦盖的花过渡
Yue Fei1, Chengcheng Yao2, Jiwen Hu2
1State Key Laboratory of Tree Genetics and Breeding, Chinese Academy of Forestry and Northeast Forestry University, Beijing, 100091, China.
Plant physiology and biochemistry : PPB
|June 24, 2025
概括
研究人员在Catalpa bungei中确定了APETALA2/乙烯反应因子 (AP2/ERF) 基因,发现CbuERF114影响了开花时间. 过度表达延迟了开花的开始,但增加了Arabidopsis的开花速度和数量.
科学领域:
- 植物生物学 植物生物学
- 遗传学 遗传学 是一个
- 分子生物学分子生物学
背景情况:
- 了解木质植物的开花机制对于繁殖至关重要,但在很大程度上是未知的.
- 转录因子APETALA2/乙烯反应因子 (AP2/ERF) 在花的转变和发育中起着关键作用.
研究的目的:
- 识别和描述卡塔尔帕基的AP2/ERF基因,重点关注它们在花过渡中的作用.
- 研究CbuERF114在调节开花时间和花发育中的功能.
主要方法:
- 对CbuAP2/ERF基因进行全基因组识别和遗传学分析.
- 在早期开花 (EF) 和正常开花 (NF) Catalpa bungei品种的花过渡期间基因表达分析.
- 亚细胞局部化,转录激活检测和阿拉比多普西斯的过度表达研究.
主要成果:
- 确定了150个CbuAP2/ERF基因,并将其分为4个子家族和17个组.
- AP2/ERF基因主要在植物向混合芽的过渡期间被激活,并在茎中表达.
- 核蛋白CbuERF114在EF植物和NF植物之间表达有显著差异,延迟了开花的开始,但在Arabidopsis过度表达时增加了开花速度和数量.
结论:
- CbuAP2/ERFs是木质植物中花过渡的重要调节者.
- CbuERF114作为开花开始的负调节器,但是开花速度和数量的积极调节器.
- 这项研究提供了对卡塔尔帕邦盖 (Catalpa bungei) 花期遗传控制的见解,并为育种计划提供了潜在的目标.
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