Genome-wide circadian gating of a cold temperature response in bread wheat.

IF 4.5 2区 生物学 Q1 Agricultural and Biological Sciences
PLoS Genetics Pub Date : 2023-09-18 eCollection Date: 2023-09-01 DOI:10.1371/journal.pgen.1010947
Calum A Graham, Pirita Paajanen, Keith J Edwards, Antony N Dodd
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引用次数: 0

Abstract

Circadian rhythms coordinate the responses of organisms with their daily fluctuating environments, by establishing a temporal program of gene expression. This schedules aspects of metabolism, physiology, development and behaviour according to the time of day. Circadian regulation in plants is extremely pervasive, and is important because it underpins both productivity and seasonal reproduction. Circadian regulation extends to the control of environmental responses through a regulatory process known as circadian gating. Circadian gating is the process whereby the circadian clock regulates the response to an environmental cue, such that the magnitude of response to an identical cue varies according to the time of day of the cue. Here, we show that there is genome-wide circadian gating of responses to cold temperatures in plants. By using bread wheat as an experimental model, we establish that circadian gating is crucial to the programs of gene expression that underlie the environmental responses of a crop of major socioeconomic importance. Furthermore, we identify that circadian gating of cold temperature responses are distributed unevenly across the three wheat subgenomes, which might reflect the geographical origins of the ancestors of modern wheat.

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面包小麦低温反应的全基因组昼夜节律门控。
昼夜节律通过建立基因表达的时间程序,将生物体的反应与其日常波动的环境相协调。这会根据一天中的时间安排新陈代谢、生理、发育和行为。植物中的昼夜节律调节非常普遍,而且很重要,因为它支撑着生产力和季节性繁殖。昼夜节律调节通过一个称为昼夜节律门控的调节过程扩展到对环境反应的控制。昼夜节律门控是昼夜节律时钟调节对环境提示的反应的过程,因此对相同提示的反应幅度根据提示的时间而变化。在这里,我们展示了植物对低温反应的全基因组昼夜节律门控。通过使用面包小麦作为实验模型,我们确定昼夜节律门控对基因表达程序至关重要,而基因表达程序是具有重要社会经济意义的作物环境反应的基础。此外,我们发现,低温反应的昼夜节律门控在三个小麦亚基因组中分布不均,这可能反映了现代小麦祖先的地理起源。
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
PLoS Genetics
PLoS Genetics 生物-遗传学
CiteScore
8.10
自引率
2.20%
发文量
438
审稿时长
1 months
期刊介绍: PLOS Genetics is run by an international Editorial Board, headed by the Editors-in-Chief, Greg Barsh (HudsonAlpha Institute of Biotechnology, and Stanford University School of Medicine) and Greg Copenhaver (The University of North Carolina at Chapel Hill). Articles published in PLOS Genetics are archived in PubMed Central and cited in PubMed.
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