Root transcriptome of Allium mongolicum Regel under drought stress conditions

IF 0.7 4区 农林科学 Q3 AGRICULTURE, MULTIDISCIPLINARY
N. Tang, Quan-zhan Chen, Ping Yang, Li-Ke Wang, Bian-jiang Zhang
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引用次数: 0

Abstract

Allium mongolicum Regel is a desert plant that shows great resistance to wind erosion, drought, and low temperatures and is widely distributed in the desert lands of China. Understanding the molecular mechanisms underlying its drought resistance is essential for uncovering drought resistance genes and improving its beneficial traits. Here, a de novo RNA-Seq assembly analysis was conducted using the roots of 1-month-old seedlings under drought stress. Using pairwise comparisons of untreated plants (CK), 48-hour drought plants (G48h), and 96- hour drought plants (G96h), in total, 2,211 differentially expressed unigenes (DEGs) were obtained. Furthermore, using functional annotation, these DEGs were mainly involved in the plasma membrane, photosynthesis, and secondary carbohydrate metabolism. Moreover, genes involved in the ABA-mediated signaling pathway and secondary metabolism were upregulated in the roots. These results suggest that desert plants may use signaling and secondary metabolic pathways as adaptive responses to drought stress. Collectively, this work could help elucidate the molecular mechanisms underlying the ability of A. mongolicum Regel to respond to drought stress and aid in the selection of novel drought tolerance genes.
干旱胁迫条件下蒙古葱根系转录组研究
蒙古葱是一种荒漠植物,具有很强的抗风蚀、抗旱、抗低温等特性,广泛分布在中国的荒漠地区。了解其抗旱性的分子机制对揭示其抗旱性基因和改善其有益性状具有重要意义。在这里,利用干旱胁迫下1个月大的幼苗根系进行了从头RNA-Seq组装分析。通过对未处理植株(CK)、干旱植株(G48h)和干旱植株(G96h)的两两比较,共获得了2211个差异表达基因(deg)。此外,通过功能注释,这些deg主要参与质膜、光合作用和次生碳水化合物代谢。此外,参与aba介导的信号通路和次生代谢的基因在根中表达上调。这些结果表明,沙漠植物可能利用信号和次生代谢途径作为对干旱胁迫的适应性反应。综上所述,本研究有助于阐明蒙古沙冬青对干旱胁迫反应能力的分子机制,并有助于新的抗旱基因的选择。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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CiteScore
2.40
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