昆虫钟基因研究进展

发布时间：2017-12-27 04:00

本文关键词：昆虫钟基因研究进展　出处：《昆虫学报》2016年03期 　论文类型：期刊论文

【摘要】：昆虫进化形成了内在的生物钟机制以协调行为、生理及代谢节律与外部环境信号同步,从而更有效地利用资源并获得适应性优势。行为、生理及代谢昼夜调控的协调对于昆虫有效应对可预见的生理上的挑战至关重要。生化过程和代谢变化与外部环境的昼夜节律同步性受基因表达的控制,钟基因在昆虫的重要生理过程如中枢及外围生物钟机制、光周期信号传导、光周期介导的外围组织调控、代谢以及免疫中发挥着重要作用。根据信号转导过程中的作用,昆虫钟基因分为3类——信号输入基因、信号震荡起搏器和信号输出基因,它们通过相互作用形成了复杂的转录-翻译反馈回路并参与调控昆虫昼夜节律和光周期事件。本文针对昆虫钟基因的鉴定、分类和功能,作用分子机制以及研究方法和挑战等方面作了总结,并展望了昆虫钟基因未来的研究方向,这将为昆虫钟基因的进一步功能研究及开发利用提供信息参考。
[Abstract]:Insects have evolved the internal clock mechanism to coordinate behavioral, physiological and metabolic rhythm with external environmental signals, so as to make more effective use of resources and obtain adaptive advantages. The coordination of day and night regulation of behavior, physiology and metabolism is essential for the insect to respond effectively to the foreseeable physiological challenges. Control of gene expression by circadian synchronization of biochemical process and metabolic changes with the external environment, the clock gene plays an important role in the physiological processes of insects such as the central and peripheral circadian clock mechanism, photoperiod signal transduction, photoperiod mediated peripheral tissues, metabolic and immune regulation in. According to the signal transduction process, insect clock genes are divided into 3 kinds, signal input, signal gene and signal output shock pacemaker gene, through interaction they formed a complex transcription translation feedback loop and participate in the regulation of insect circadian rhythms and light cycle events. In this paper the insect clock genes identification, classification and function, molecular mechanism and research methods and challenges are summarized, and the prospect of the future research direction of the insect clock gene, it will be reference for further functional research and development and utilization of insect clock gene information.
【作者单位】：重庆师范大学生命科学学院昆虫与分子生物学研究所;
【基金】：“两江学者”计划专项经费国家自然科学基金项目(31372265) 国际原子能机构CRP项目(18268/R0) 重庆市教委科学技术研究项目(KJ1400527)
【分类号】：Q963
【正文快照】： 地球自转和公转产生光和温度可预测的周期性变化,生物为适应昼夜光温变化及四季轮换而进化出内在的、可遗传的节律机制———生物钟( biological clock) 。生物钟在分子、细胞、生理、生化及行为等各级水平上对生殖、发育和免疫等发挥重要的调控作用( Eckel-Mahan and Sassone

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