基因型×环境相互作用研究,用基于多个模型的方法对单质和质苦 (Momordica charantia L.) 的基因型进行稳定性研究
Durga Prasad Moharana1,2, D R Bhardwaj3, Kartik Pramanik4
1Department of Horticulture, Institute of Agricultural Sciences, Banaras Hindu University, Varanasi, Uttar Pradesh, 221 005, India. dpmoharana@ouat.ac.in.
Scientific reports
|November 29, 2025
概括
苦的繁殖需要基因型稳定跨季节. 这项研究确定了广泛适应的高产品种 (G20,G8,G7) 和果子周长和重量等特征的特定适应,指导了未来的杂交发展.
科学领域:
- 农业学和作物科学 农业学和作物科学
- 植物育种 植物育种
- 遗传学和基因组学 遗传学和基因组学
背景情况:
- 苦 (Momordica charantia) 是一种重要的类作物.
- 改善苦瓜需要表现出高产量和季节性稳定的基因型.
- 基因型与环境的相互作用 (GEI) 显著影响产量和贡献性质.
研究的目的:
- 在四个环境中评估22个苦品种的产量和产量贡献特征.
- 确定关键园艺特征的基因型与环境相互作用 (GEI).
- 为了确定稳定的基因型,并了解环境对苦瓜表现的影响.
主要方法:
- 在两年内,在四个环境中评估了22个性和单性苦品种.
- 差异分析 (ANOVA) 以评估基因型,环境和GEI对特征的影响:每种植物的果实数量 (NFP),果实长度 (FL),果实周长 (FC),果实重量 (FW) 和每种植物的产量 (YP).
- 应用AMMI,WAASBY/ASV,YSI和GGE双图分析用于稳定性和大环境识别;BLUP和BLUE用于性能估计.
主要成果:
- 在所有研究的特征中,在基因型,环境和GEI之间观察到显著的差异.
- 环境影响占产量总变化的70.38%,突出显示季节性差异.
- 确定了广泛稳定的基因型 (G3,G5,G8) 和高产,稳定的线条 (G8,G7). GGE双图显示了NFP和YP选择的两个大型环境 (E2,E3). 持续高的YP线路包括G20,G8和G7.
结论:
- 建议采用双重育种策略:一种是广泛适应的高产品种 (G20,G8,G7,G3,G5),用于广泛释放和杂交生产.
- 另一种策略应该利用针对市场特征 (FC,FW) 的特定适应,使用E2/E3环境进行选择.
- 将稳定性指数与最好的线性无偏预测 (BLUP) 整合起来,可以加速遗传收益,并提高菌株对杂交种子生产的适用性.
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