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选棉花基因类型的干旱耐受能力,基于脱水响应元素结合蛋白和与林生物合成相关的基因的表达水平以及形态-物理-生化反应

Rujira Tisarum¹, Cattarin Theerawitaya¹, Patchara Praseartkul¹

¹National Center for Genetic Engineering and Biotechnology (BIOTEC), National Science and Technology Development Agency (NSTDA), 113 Thailand Science Park, Paholyothin Road, Khlong Nueng, Khlong Luang, 12120, Pathum Thani, Thailand.

|February 20, 2024

概括

干旱压力对棉花生长产生负面影响. 塔克法3通过生理和生化调整表现出干旱耐受性,与敏感的基因型不同. 这一发现有助于培育耐旱棉花品种.

科学领域:

植物生理学植物生理学
农业学是一种农业学.
遗传学遗传学是一个

背景情况:

干旱压力严重损害了棉花 (Gossypium hirsutum L.) 的生长,产量和纤维质量.
识别耐旱基因型对于开发有效的育种策略来减轻农业干旱影响至关重要.

研究的目的:

根据其干旱耐受性,使用形态-物理-生化特征对选定的棉花基因型进行分类.
确定潜在的耐旱棉花品种,用于在水资源有限的环境中种植.

主要方法:

在花期开始阶段,五种棉花基因型经历了大量灌和缺水的条件.
分析了形态,生理和生化参数,以及基因表达水平 (GhPRP, GhP5CS, GhP5CR).
华德的分层集群分析被用来将基因型分为耐旱和易受干旱的群体.

主要成果:

在缺水条件下,Takfa 3基因型表现出与普罗林相关的基因 (GhPRP,GhP5CS,GhP5CR) 的上调和奥斯酸盐 (普罗林,可溶糖,) 的积累.
缺水条件导致易受影响的基因型的叶子绿色,光合作用率,口腔导电性和透气性降低 (Takfa 6, 7, 84-4, 86-5).
在易受影响的基因型中观察到叶子温度升高和作物水压力指数 (CWSI),这表明水压力很大.

结论:

棉花基因型被成功分为耐旱 (Takfa 3) 和易受干旱 (Takfa 6, 7, 84-4, 86-5) 组.
由于其增强的生理和生化应激反应,Takfa 3在易旱地区的种植具有前景.
建议进一步验证Takfa 3在田间下雨条件下的产量表现.

关键词:

戈西皮乌姆 (Gossypium hirsutum L. L.) 的意思是说,它是的植物.集群分析就是对集群进行分析.耐旱耐受性耐旱耐受性耐旱耐受性奥斯莫斯调节的调整.光合作用的能力.氨酸的生物合成总的可溶糖总量是可以溶化的糖.

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