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进行比较的转录组分析,以揭示关键的分子信号通路和干旱适应性可塑性,在甘的芽生根系中

R Valarmathi¹, H K Mahadeva Swamy², C Appunu²

¹Division of Crop Improvement, ICAR-Sugarcane Breeding Institute, Coimbatore, 641007, India. valarmathi.r@icar.gov.in.

Scientific reports

|August 8, 2023

概括

芽生根 (SBR) 对于甘的产量和耐旱性至关重要. 与商业杂交品种相比,野生Erianthus表现出优越的SBR发展和干旱适应性,为改良的甘品种的育种提供了目标.

科学领域:

植物生物学植物生物学
遗传学是一个遗传学.
农业学是一种农业学.

背景情况:

甘的永久根系,SBR,对于作物产量和农作物生产至关重要.
关于SBR架构和商业甘杂交品的功能知识有限.
SBR的发展和干旱应对机制需要进一步研究.

研究的目的:

为了比较商业甘杂交物和野生Erianthus之间的SBR发展和干旱耐受性.
在干旱压力下调查SBR差异的遗传和分子基础.
确定潜在的育种目标,以提高甘对干旱的耐受性.

主要方法:

甘和Erianthus的相对表型,解剖学和整个转录组概况.
干旱应激应用和SBR架构和细胞生存能力的评估.
在压力条件下的SBR基因表达模式的分析.

主要成果:

与Erianthus相比,商业混合物显示SBR启动和建立的延迟.
埃里安修斯SBR显示干旱适应性架构和弹性,而商业杂交品的SBR在干旱下崩.
转录组分析显示,Erianthus SBRs中压力信号通路的显著上调,包括糖,,激素信号和烯胺生物合成.

结论:

埃里安修斯拥有卓越的干旱适应性SBR系统,这对其耐旱性至关重要.
埃里安修斯 (Erianthus SBRs) 中的主要信号通路调解干旱抵御能力的生理反应.
该SBR系统为繁殖耐旱甘基因型提供了一个有希望的目标.

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