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多环境关联研究突出显示了强大的农学定量特征局部的候选基因,在一个新的全球Capsicum核心集合中

Louis McLeod^1,2, Lorenzo Barchi³, Giorgio Tumino⁴

¹INRAE, GAFL, Montfavet, France.

The Plant journal : for cell and molecular biology

|August 21, 2023

概括

在多样化的胡核心集合上进行全基因组关联研究 (GWAS),确定了重要的农学特征的遗传因素. 这项研究有助于开发用于作物改良中的标记器辅助选择的遗传标记物.

科学领域:

植物遗传学和基因组学
农作物科学农作物科学
农业生物技术农业生物技术

背景情况:

了解作物多样性对于识别复杂的定量特征的遗传决定因素至关重要.
全基因组关联研究 (GWAS) 是剖析作物收藏中的特征架构的强大工具.
基因型与环境 (G×E) 相互作用显著影响植物复杂特征表达.

研究的目的:

组装和描述一个多样化的核心集合的Capsicum (胡) 加入.
进行多环境GWAS以确定各种农业特征的定量特征位置 (QTL).
为了确定与水果和植物特征强大的QTL相关的候选基因.

主要方法:

从10,038个加入的全球收藏中,组建了一个由423个Capsicum加入的核心收藏.
在5个国家的6个试验中使用10,195标记的基因型矩阵对350个Capsicum annuum加入进行了多环境GWAS.
对于23种不同的农学特征,包括水果特征和植物生产率的表型加入.

主要成果:

在Capsicum annuum中检测到23种不同的农学特征的环境特定和多环境QTL.
确定了97个候选基因,与53个与水果风味,颜色,大小,形状,植物生产力,活力和早熟性相关的高可信度QTL相关.
建立了一个有价值的G2P-SOL胡核心集合,用于未来的遗传研究和育种工作.

结论:

这项研究阐明了胡中关键农学特征的遗传结构,促进了标记器辅助的选择.
已识别的候选基因为了解特征发展和培育改进的胡品种提供了目标.
G2P-SOL的胡核心收藏是科学界在基因发现和育种方面的重要资源.

关键词:

红 (Capsicum annuum) L. 年 (Capsicum annuum) L. 年 (Capsicum annuum) 是一种年.农业学特征农业学特征协会研究协会研究候选基因候选基因候选基因核心集合核心收藏核心收藏多环境试验多环境试验胡胡胡胡是一个

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