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一个用于从Aegilops tauschii到小麦的全基因组速度入侵的平台,用于培育未来作物

Hao Li^1,2, Lele Zhu¹, Ruixiao Fan¹

¹State Key Laboratory of Crop Stress Adaptation and Improvement, School of Life Sciences, Henan University, Kaifeng, China.

Nature protocols

|November 28, 2023

概括

科学家们开发了一种快速的协议,将Aegilops tauschii的整个基因组引入面包小麦. 这加快了改良小麦品种的繁殖,这些品种具有全球粮食安全的理想特征.

科学领域:

植物遗传学和育种.
提高作物质量提高作物质量
基因组学就是基因组学.

背景情况:

确保全球粮食安全需要培育具有理想特征的高产,可持续的作物品种.
像小麦这样的多种作物从从野生亲属引入的遗传变异中受益,以增强繁殖池.
快速育种,基因组测序和基因组辅助育种方面的进步使野生亲属的全基因组侵入成为可能.

研究的目的:

提出一种标准化的协议,用于快速将Aegilops tauschii的整个基因组侵入精英小麦背景.
为加快小麦育种计划和功能基因发现的稳定内进线的发展.

主要方法:

合成八体小麦的发展.
六合体Aegilops tauschii-小麦入侵线 (A-WI) 的生成.
生成的A-WIs的同位合,集成多种高吞吐量技术.

主要成果:

一个标准化的协议成功地将整个Aegilops tauschii基因组入精英小麦.
在2年内产生了稳定的内进线 (A-WIs).
该协议加速了从Aegilops tauschii中引入可取的基因到小麦品种中.

结论:

开发的协议显著加快了Aegilops tauschii-小麦入侵线的生成.
这些AWI是小麦育种计划和发现新基因的宝贵资源.
该协议可适应将野生相对基因组侵入其他多类作物.

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