用AMMI和GGE双图分析在各种环境中评估的指小米基因型的产量稳定性
M Chandhana Ishwarya1, Swapnil2, Sanghamitra Rout1
1Department of Genetics and Plant Breeding & Seed Science and Technology, Centurion University of Technology and Management, Paralakhemundi, 761211, Odisha, India.
Scientific reports
|November 7, 2025
概括
确定稳定,高产的指小米基因型至关重要. 基因型G18 (VR-1176) 在各种环境中表现出卓越的表现,通过分子标记器验证,帮助繁殖计划.
科学领域:
- 农业科学 农业科学
- 遗传学 是一个遗传学.
- 植物育种 植物育种
背景情况:
- 指小米 (Eleusine coracana) 的生产力受到基因型×环境相互作用 (GEI) 的显著影响.
- 鉴定高产和稳定的手指小米基因型是具有挑战性的,因为GEI.
- 了解GEI对于开发改进的手指小米品种至关重要.
研究的目的:
- 评估指小米基因型的产量稳定性和适应性在不同的农业生态区.
- 为潜在的释放和繁殖计划确定优越的基因型.
- 整合表型和分子数据,以便进行可靠的基因型选择.
主要方法:
- 在两个拉比季节中,在三个区域 (奥迪沙,哈克邦,比哈尔) 实地评估了35种手指小米基因型.
- 使用随机块设计收集关于谷物产量,1000粒重量和指数的数据.
- 使用AMMI (添加主效应和乘法相互作用) 和GGE (基因型+基因型×环境) 双图方法进行分析.
- 使用UGEP标记物 (46,66,68) 进行分子分析,以寻找标记物与特征的关联.
主要成果:
- 基因型G18 (VR-1176) 在所有测试环境中始终表现出最高的产量稳定性和生产力.
- 哈克邦 (E2) 被确定为手指小米种植最有利的环境.
- 通过AMMI和GGE双图分析,证实了G18和G15基因型的优异性能.
- 分子标记物显示高产基因型中的多态性,证实了表型发现.
结论:
- 基因型G18 (VR-1176) 由于其高产量和稳定性,是商业栽培和育种的有希望的候选者.
- 结合表型和分子数据的综合方法为识别精英指小米基因型提供了可靠的策略.
- 这些发现支持制定有针对性的育种计划,以提高指小米的生产力和弹性.
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