家蚕滞育生理及其分子调控机制研究进展  

Advances in Diapause Physiology and Molecular Regulatory Mechanism of Silkw orm,Bom byx mori

作　　者：蒋涛 沈兴家[1,2] 唐顺明 钱平[1,2] 

机构地区：[1]江苏科技大学生物技术学院,江苏省蚕桑生物学与生物技术重点实验室,江苏镇江212018 [2]中国农业科学院蚕业研究所,农业部蚕桑遗传改良重点实验室,江苏镇江212018

出　　处：《蚕业科学》2017年第6期1031-1038,共8页ACTA SERICOLOGICA SINICA

基　　金：国家自然科学基金项目(No.31672490,31372376);江苏省自然科学基金项目(No.BK20141285);江苏省高校自然科学研究重大项目(No.15KJA180001)

摘　　要：滞育是昆虫等动物应对周期性不利环境表现出的一种发育停滞的生理过程。家蚕既是重要的经济昆虫,也是鳞翅目模式生物,研究家蚕滞育生理及分子调控机制,对于理解昆虫的发育生理与适应性进化以及制定农林害虫防治策略等都有重要的理论和实践意义。国内外学者的研究证实,家蚕滞育是环境因素与遗传因素共同作用的结果,当环境信号被蚕体感知后转化形成滞育信号,再经复杂的信号转导途径,通过激素调节和营养物质储备与代谢的调控,使家蚕体内建立起适应滞育的生理代谢体系。近年来的研究进一步表明,家蚕滞育激素受体蛋白、热休克蛋白以及磷酸化作用参与的基因表达调控是家蚕滞育重要的分子调控机制,与滞育的起始、维持、终止密切相关。本文系统概述了上述家蚕滞育生理机制与分子调控机制的研究成果。Diapause is a developmental stagnant physiological process employed by insects and other animals in responding to cyclical adverse environment. Silkworm（ Bombyx mori） is not only an important economic insect,but also a model organism of Lepidoptera. Researches on silkworm diapause physiology and molecular control mechanism have important theoretical and practical significance for understanding insect developmental physiology and adaptive evolution and for developing agriculture and forestry pest control strategies. It has been proved that diapause in silkworm is the co-action result of both environmental and genetic factors. The environmental signals sensed by silkworm are transformed to form diapause signal,which is then processed through complex signal transduction pathways to establish physiological and metabolic systems adaptive to diapause through hormone regulation,nutrient storage and metabolic regulation. Researches in recent years have further proved that gene expression regulations with involvement of diapause hormone receptor,heat shock protein and phosphorylation are important molecular mechanisms involved in diapause of silkworm,which are closely related to the beginning, maintenance and termination of diapause. This paper summarizes the recent research progress on physiological mechanism and molecular regulation mechanism of diapause in silkworm.

关 键 词：家蚕 昆虫 滞育 生理基础 分子机制 

分 类 号：S881.2[农业科学—特种经济动物饲养]