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甘中的RTE基因家族成员的全基因组识别及其在盐和干旱压力下的表达模式

Xiaojie Jin¹, Heping Wan², Feng Yu³

¹Hubei Key Laboratory of Food Crop Germplasm and Genetic Improvement, Institute of Food Crops, Hubei Academy of Agricultural Sciences, Wuhan 430064, China.

Current issues in molecular biology

|January 30, 2026

概括

甜 (Ipomoea batatas) 有23个涉及乙烯调节的RTE基因. 这些基因在干旱和盐分压力下表现出差异性表达,这表明这种重要的粮食作物在非生物应激适应中的作用.

科学领域:

植物分子生物学植物分子生物学
基因组学就是基因组学.
植物激素信号传递

背景情况:

乙烯是调节生长和应激反应的关键植物激素.
通过调节ETR1.1,RTE1通过负调节Arabidopsis中的乙烯反应.
在非生物压力下,甜 (Ipomoea batatas) 中RTE基因的功能在很大程度上是未知的.

研究的目的:

为了识别和描述甜中的RTE基因.
研究甜RTE基因在适应干旱和度等非生物压力的潜在作用.

主要方法:

在甜基因组中识别和对23个RTE基因进行基因分析.
合成分析以了解基因家族扩张机制 (全基因组复制 - WGD).
在促进区域中分析cis-acting元素.
在盐 (NaCl) 和干旱 (PEG) 处理下进行转录组和qRT-PCR表达特征分析.

主要成果:

23个IBRTE基因被确定并分为RTE1和RTH组.
确定WGD是IBRTE基因家族扩张的主要驱动因素.
在干旱和盐酸压力条件下,IBRTE基因表现出组织特异性表达和差异性调节.
表达式分析证实了在盐和干旱处理下对14种代表性IBRTEs的差异分析.

结论:

甜中的IBRTE基因家族经历了扩张,可能是由于WGD.
促进体分析表明,荷尔蒙和与压力相关的因素可能会对其产生调节.
不同的表达模式表明,IBRTE基因在甜对盐和干旱压力的反应中显著参与.
这项研究为未来对Ibrte基因在非生物应激适应中的功能性表征提供了基础.

关键词:

在RTE基因家族中,干旱造成的压力是干旱.基因表达分析基因表达分析盐的压力是盐的压力.甜是一种甜.

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