Novel discovery in roles of structural variations and RWP-RK transcription factors in heat tolerance for pearl millet.

Stress biology Pub Date : 2023-05-15 DOI:10.1007/s44154-023-00092-3

Bingru Huang, Haidong Yan, Min Sun, Yarong Jin

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Abstract

Global warming adversely affects crop production worldwide. Massive efforts have been undertaken to study mechanisms regulating heat tolerance in plants. However, the roles of structural variations (SVs) in heat stress tolerance remain unclear. In a recent article, Yan et al. (Nat Genet 1-12, 2023) constructed the first pan-genome of pearl millet (Pennisetum glaucum) and identified key SVs linked to genes involved in regulating plant tolerance to heat stress for an important crop with a superior ability to thrive in extremely hot and arid climates. Through multi-omics analyses integrating by pan-genomics, comparative genomics, transcriptomics, population genetics and and molecular biological technologies, they found RWP-RK transcription factors cooperating with endoplasmic reticulum-related genes play key roles in heat tolerance in pearl millet. The results in this paper provided novel insights to advance the understanding of the genetic and genomic basis of heat tolerance and an exceptional resource for molecular breeding to improve heat tolerance in pearl millet and other crops.

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结构变异和RWP-RK转录因子在珍珠粟耐热性中的新发现。

全球变暖对全球农作物生产产生不利影响。对植物耐热性调控机制的研究已经开展了大量的工作。然而，结构变异(SVs)在耐热性中的作用尚不清楚。在最近的一篇文章中，Yan等人(Nat Genet 1- 12,2023)构建了珍珠粟(Pennisetum glaucum)的首个泛基因组，并确定了与调节植物耐热性基因相关的关键SVs，珍珠粟是一种重要的作物，具有在极端炎热和干旱气候下茁壮成长的优越能力。通过泛基因组学、比较基因组学、转录组学、群体遗传学和分子生物学等综合多组学分析，发现RWP-RK转录因子与内质网相关基因协同作用在珍珠谷子耐热性中起关键作用。本研究结果为进一步了解珍珠粟等作物耐热性的遗传和基因组基础提供了新的见解，并为提高珍珠粟等作物耐热性的分子育种提供了宝贵资源。

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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来源期刊

Stress biology

CiteScore

3.10

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0.00%

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