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Your Position :Home->Past Journals Catalog->2020 Vol.39 No.2

Expression Differences of Ovarian Genes of Pengbo Semi Fine Wool Sheep Producing Twin Lambs at Estrus
Author of the article:ZHANG Li1*, Pubuciren1, HU Yadong2, Zhaxi1, Luosangcuicheng1, Cirenquzhen1, Deqingzhuoga1
Author's Workplace:1. Institute of Animal Husbandry and Veterinary Science, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa 850009, China;
2. Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China
Key Words:Pengbo semi fine wool sheep; character of litter size; development of ovary; RNA-Seq; differentially expressed genes
Abstract:Pengbo semi fine wool sheep is the first national new breed of sheep in Tibet Autonomous Region, and the study on the litter size can facilitate the development of fecundity research in Tibetan sheep. In this study, RNA-sequencing was applied to investigate the regulation pattern of ovarian gene during the estrus period of Pengbo semi fine wool sheep producing twin lambs(dual group). The results showed that a total of 1 021 up-regulated and 1 468 down-regulated genes were detected in the dual group compared with the single group. GO and KEGG analysis revealed that the up-regulated genes were mainly related to cell membrane structure (cell adhesion, cell movement, material transport and signal transduction processes), while the down-regulated genes were mainly related to material metabolism. These results indicated that the frequency of material transport and signal transduction in the ovary of dual group contributed to the promotion of differentiation and the development of follicles. Moreover, the enhanced adhesion and motor function of the cells might facilitate the development of oocytes and the discharge of mature ovum. Further study concerning on the up-regulated cell adhesion molecules, TGF-beta signaling pathway and solute carrier family genes in ovary can contribute to developing potential marks for twin-lambs production. Therefore, this study is not only helpful to the litter size research of Pengbo semi fine wool sheep, but also contributes to the development of fecundity research in Tibetan sheep.
2020,39(2): 156-166 收稿日期:2019-10-08
分类号:S814.1
基金项目:西藏自治区重点研发及转化项目(XZ201801NB16);西藏自治区自然科学基金项目(XZ2018ZRG-37);国家绒毛用羊产业技术体系项目(CARS-39-33)
作者简介:张立(1986-),硕士,助理研究员,研究方向为绵羊遗传育种,E-mail:sagezhl@outlook.com
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