遗传 ›› 2018, Vol. 40 ›› Issue (5): 369-377.doi: 10.16288/j.yczz.17-423

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绵羊季节性繁殖分子机制及休情季节诱导绵羊发情配种技术

夏青,刘秋月,王翔宇,胡文萍,李春艳,贺小云,储明星(),狄冉()   

  1. 中国农业科学院北京畜牧兽医研究所,农业部动物遗传育种与繁殖重点实验室,北京 100193
  • 收稿日期:2017-12-23 修回日期:2018-02-28 出版日期:2018-05-20 发布日期:2018-04-12
  • 通讯作者: 储明星,狄冉 E-mail:mxchu@263.net;dirangirl@163.com
  • 作者简介:夏青,硕士研究生,专业方向：动物分子育种。E-mail: 1833457068@qq.com
  • 基金资助:
    国家自然科学基金项目(31572371);转基因科技重大专项(2016ZX08009-003-006);转基因科技重大专项(2016ZX08010-005-003);中国博士后科学基金面上项目(2016M591308);国家肉羊产业技术体系专项(CARS-38);中央级公益性科研院所基本科研业务费专项(Y2017JC24);中央级公益性科研院所基本科研业务费专项(2017ywf-zd-13);中央级公益性科研院所基本科研业务费专项(2013ywf-zd-1);中国农业科学院科技创新工程项目(No. ASTIP-IAS13);农业科研杰出人才及其创新团队项目和国家万人计划科技创新领军人才项目资助

The molecular mechanism of sheep seasonal breeding and artificial regulatory techniques for estrus and mating in anestrus

Qing Xia,Qiuyue Liu,Xiangyu Wang,Wenping Hu,Chunyan Li,Xiaoyun He,Mingxing Chu(),Ran Di()   

  1. Key Laboratory of Animal Genetics and Breeding and Reproduction of Ministry of Agriculture, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China
  • Received:2017-12-23 Revised:2018-02-28 Online:2018-05-20 Published:2018-04-12
  • Contact: Chu Mingxing,Di Ran E-mail:mxchu@263.net;dirangirl@163.com
  • Supported by:
    Supported by the National Natural Science Foundation of China(31572371);Genetically Modified Organisms Breeding Major Program of China(2016ZX08009-003-006);Genetically Modified Organisms Breeding Major Program of China(2016ZX08010-005-003);China Postdoctoral Science Foundation(2016M591308);Earmarked Fund for China Agriculture Research System(CARS-38);Central Public-interest Scientific Institution Basal Research Fund(Y2017JC24);Central Public-interest Scientific Institution Basal Research Fund(2017ywf-zd-13);Central Public-interest Scientific Institution Basal Research Fund(2013ywf-zd-1);Agricultural Science and Technology Innovation Program of China(No. ASTIP-IAS13);China Agricultural Scientific Research Outstanding Talents and Their Innovative Teams Program, and China High-level Talents Special Support Plan Scientific and Technological Innovation Leading Talents Program

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摘要：

季节性繁殖是限制绵羊生产效率的重要因素。季节性繁殖分子机制的深入解析是提高绵羊休情季节发情配种率的前提。研究发现,长光照与短光照条件下绵羊季节性繁殖通路中出现一系列相关信号分子变化及细胞形态学改变。基于季节性繁殖分子机制,研究者已研发出若干休情季节诱导母羊发情配种的技术或方法。本文从季节性繁殖分子机制方面总结了上述光照信号分子及垂体和下丘脑组织中细胞形态学的变化特征,及休情季节诱导母羊发情配种技术的应用效果及其利弊,并提出解决问题的关键在于寻找能够提高休情季节配种率的绿色高效的新型技术。

关键词: 绵羊, 季节性繁殖, 光照信号分子, 休情期, 人工调控

Abstract:

Seasonal breeding is an important factor limiting sheep production efficiency. Detailed analysis on the molecular mechanisms of seasonal breeding is the premise for improving estrus and mating rate of sheep during anestrus. Recent research showed that under long-photoperiod and short-photoperiod conditions, a series of changes in signaling molecules and cell morphology could be observed in ovine seasonal reproduction pathway. Based on the molecular mechanisms of seasonal reproduction, several technologies or methods for inducing estrus and mating of ewes in anestrus have been developed. In this review, photoperiod-induced changes in signaling molecules and cell morphology in pituitary and hypothalamic tissue are first summarized in terms of the molecular mechanisms and characteristics of seasonal reproduction. The application effect, advantages and disadvantages for applying these technologies for inducing estrus and mating of ewes in anestrus are then discussed, thereby providing the critical insights in identifying a new technology, which is environmentally friendly and efficient, to improve breeding rate in anestrus.

Key words: sheep, seasonal reproduction, photoperiod-induced signaling molecules, anestrus, artificial regulation