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使用转录组学来确定一种小麦Th.Th.的抵抗菌头炎的机制. elongatum 转位线是指转位线的长度

Yi Dai^1,2,3, Wenlin Fei¹, Shiqiang Chen⁴

¹Jiangsu Key Laboratory of Crop Genomics and Molecular Breeding/Key Laboratory of Plant Functional Genomics of the Ministry of Education/Jiangsu Key Laboratory of Crop Genetics and Physiology, Yangzhou University, Yangzhou 225009, China.

International journal of molecular sciences

|September 14, 2024

概括

研究人员开发了一种新的小麦生殖质,YNM158,具有对Fusarium头部炎 (FHB) 的增强抵抗力. 这一突破利用了Thinopyrum elongatum染色体片段,为培育抗FHB小麦品种提供了一种新的解决方案.

科学领域:

植物病理学植物病理学
遗传学是一个遗传学.
农业学是一种农业学.

背景情况:

菌头部病 (FHB) 对全球小麦产量构成重大威胁.
开发具有持久FHB耐药性的小麦生殖质仍然是植物育种的关键挑战.

研究的目的:

介绍和表征一种新的小麦生殖质谱系,YNM158,对FHB.表现出高耐药性.
阐明FHB耐药性背后的分子机制,这种耐药性是由Thinopyrum elongatum的内进的7EL染色体片段所赋予的.

主要方法:

使用60Co-γ辐射创建转位线YNM158,将T. elongatum的7EL染色体片段侵入小麦中.
对FHB耐药性的现场和温室评估.
转录组分析以调查F. graminearum感染后的基因表达变化.

主要成果:

在田间和温室条件下,YNM158表现出高FHB耐药性.
转录组分析发现一种谷氨S转移酶 (GST) 基因在早期感染阶段至关重要.
7EL片段调节了小麦基因,参与了酸丁醇信号传递,内细胞网膜蛋白质处理,植物病原体相互作用和MAPK信号传递.

结论:

YNM158代表了一种有价值的新生殖血资源,用于培育FHB耐药小麦.
这项研究提供了对小麦防御F. graminearum的复杂分子机制的见解,涉及病原体衍生和宿主调节的基因.

关键词:

类头部病类头部病疾病耐药性路径的疾病耐药性路径.转录组分析转录组分析在小麦-Th. 长体转位线的转位线

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Plant Breeding and Biotechnology

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Crop cultivation has a long history in human civilization, with records showing the cultivation of cereal plants beginning at around 8000 BC. This early plant breeding was developed primarily to provide a steady supply of food.