一个目录的GNI-A1基因调节花生育在一个多样化的面包小麦收藏的基因
Shun Sakuma1, Yoko Yamashita2, Takako Suzuki2
1Faculty of Agriculture, Tottori University, Tottori 680-8553, Japan.
Plants (Basel, Switzerland)
|February 10, 2024
概括
在面包小麦生殖质中发现了谷物数量增加1 (GNI-A1) 基因的不同等位基因. 与提高生育能力和谷粒大小相关的105Y等位基因在亚洲陆地种中占主导地位,而105N等位基因在欧洲类型中占主导地位.
科学领域:
- 植物遗传学 植物遗传学
- 农作物科学 农作物科学
- 分子生物学分子生物学
背景情况:
- 花朵结构的修改提高了面包小麦 (Triticum aestivum) 的谷物产量.
- 编码转录因子的谷粒数增加1 (GNI-A1) 基因的等位基因变异会影响谷粒数和整体产量.
- 对于GNI-A1在各种小麦生殖质中存在的有限的等位基因信息.
研究的目的:
- 在252个面包小麦加入的多样化面板中调查GNI-A1等位基因.
- 了解不同地理集合中GNI-A1等位基因的分布和功能意义.
主要方法:
- 在252个面包小麦加入 (NBRP核心集合和HRO种植者面板) 中对GNI-A1的目标重新排序.
- 关联分析以将GNI-A1等位基因与农学特征相关联.
主要成果:
- 在NBRP组 (亚洲陆地品种) 中,功能减少的105Y基因组占主导地位,而功能性105N基因组在HRO组 (欧洲基因型) 中占主导地位.
- 具有105Y等位基因的培养物在NBRP核心集合中表现出改善的花生育能力和粒度.
- 地理分布表明,在东亚选择了105Y,在欧洲选择了105N.
结论:
- 不同的GNI-A1等位基因在面包小麦中经历了局部选择.
- 105Y等位基因似乎在东亚被选择,与改善的谷物特征相关联.
- 105N等位基因主要在欧洲小麦的生殖质中被选择.
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