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对来自CIMMYT和中国的153个小麦品种的质量特征分析

Pengpeng Liu¹, Zhe Zhang², Yuruo Yin²

¹Institute of Crop Research, Xinjiang Academy of Agri-Reclamation Sciences, Key Lab of Xinjiang Production and Construction Corps for Cereal Quality Research and Genetic Improvement, Shihezi, Xinjiang, China.

Frontiers in genetics

|August 21, 2023

概括

中国和CIMMYT小麦品种显示了与质量相关的不同的基因分布. 中国小麦更喜欢Pina-D1a/Pinb-D1b,而CIMMYT系列更喜欢Pina-D1b/Pinb-D1a,影响谷物的硬度和蛋白质含量.

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:

小麦质量受遗传因素的影响,在中国和国际品种之间观察到显著差异.
了解控制谷物硬度,酶活性和蛋白质含量等特征的基因中的等位基因变异对于小麦育种至关重要.

研究的目的:

调查中国和CIMMYT小麦胚胎质量相关基因的等位基因变异分布.
探索不同等位基组组合对小麦质量特征的贡献.

主要方法:

来自中国和CIMMYT的153个小麦胚胎体的基因型和表型.
对基因如Pina-D1,Pinb-D1,PPO,LOX和高分子量谷蛋白子单元 (HMW-GS) 的等位基因变异的分析.

主要成果:

在中国小麦和CIMMYT小麦之间,Pina-D1/Pinb-D1等位基因组合和HMW-GS (1/2*和5+10) 分布的显著差异.
皮纳基因对谷物硬度的影响比Pinb.更大.
与PPO-D1相比,PPO-A1对多氧化酶活性的影响更大.
高蛋白质含量与硬度基因和特定的HMW-GS组合有关.

结论:

在中国和CIMMYT品种之间,小麦质量基因分布有很大差异,CIMMYT品种通常具有更高质量的HMW-GS.
识别和利用具有理想等位基的特定CIMMYT系可以帮助中国小麦育种者通过标记器辅助选择开发改进的品种.

关键词:

这是一个KASP标记.分子标记物分子标记物质量物业质量物业物业质量相关基因与质量相关的基因.小麦小麦小麦小麦小麦小麦小麦.

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