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充分利用土地品种的多样性使小麦的繁殖业更加强大

Shifeng Cheng¹, Cong Feng², Luzie U Wingen³

¹Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen, China. chengshifeng@caas.cn.

|June 17, 2024

概括

解锁小麦

科学领域:

农业科学
遗传学
植物育种

背景情况:

粮食安全依赖于主要作物的遗传多样性.
现代小麦品种 (Triticum aestivum) 的遗传起源有限.
兰德雷斯的收藏提供了未开发的遗传资源.

研究的目的:

分析AE沃特金斯面包小麦土地品种的遗传和表型多样性.
识别和评估用于改进现代小麦品种的土地品种的新型单元.
建立一个利用土地品种遗传多样性的框架.

主要方法:

全基因组重新测序827种本土品种和208种现代品种.
长达十年的现场深入评估表型特征.
链接不平衡和关联遗传学分析.

主要成果:

现代的小麦品种源自七种祖先小麦的两种.
五个祖先群体代表着一个重要的,尚未开发的遗传多样性的来源.
识别了许多有益的,陆地特异性单元型,赋予了优越的特征.
评估了44,338个内进的沃特金斯特异性单元类型的表型影响.

结论:

沃特金斯的收藏包含了大量用于小麦改良的遗传资源.
系统地利用土地品种多样性可以提高现代育种策略.
这项研究为通过作物遗传多样性实现可持续粮食安全提供了框架.

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