文献类型： 外文期刊
作者： La, Yongfu 1 ; Tang, Jishun 1 ; Guo, Xiaofei 4 ; Zhang, Liping 2 ; Gan, Shangquan 5 ; Zhang, Xiaosheng 4 ; Zhang, Jinl 1 ;
作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, Minist Agr & Rural Affairs, Key Lab Anim Genet Breeding & Reprod, Beijing 100193, Peoples R China
2.Gansu Agr Univ, Coll Anim Sci & Technol, Lanzhou 730070, Gansu, Peoples R China
3.Anhui Acad Agr Sci, Inst Anim Husb & Vet Med, Hefei 230031, Anhui, Peoples R China
4.Tianjin Inst Anim Sci, Tianjin 300381, Peoples R China
5.Xinjiang Acad Agr & Reclamat Sci, State Key Lab Sheep Genet Improvement & Hlth Prod, Shihezi 832000, Peoples R China
关键词： Sheep; Protein; Prolificacy; RNA-Seq; Uterus
期刊名称：JOURNAL OF PROTEOMICS （ 影响因子：4.044； 五年影响因子：4.02 ）
ISSN： 1874-3919
年卷期： 2020 年 210 卷
页码：
收录情况： SCI
摘要： Small Tail Han sheep have attracted attention for their high fecundity and year-round estrus. However, the molecular mechanisms of this fecundity are unknown. Polymorphism of the FecB gene has been shown to be associated with the ovulation rate and litter size in sheep. In this study, we used tandem mass tag quantitative proteomic techniques to identify the differentially abundant proteins in polytocous and monotocous Small Tail Han sheep (FecB + +) uterine tissues in the follicular and luteal phases. In total, 41 and 43 differentially abundant proteins were identified in the follicular and luteal phases, respectively. Correlation analysis between the transcriptome and proteome revealed a positive correlation at the two omics levels of prolificacy. GO and KEGG pathway analyses indicated that the mRNAs and proteins upregulated in the polytocous group relative to the monotocous group are involved in sphingolipid metabolism and amino acid metabolism, and may be important in maintaining uterine functions and increasing the embryo survival rate during the estrus cycle of polytocous sheep. In conclusion, our work provides a prospective understanding of the molecular mechanism underlying the high prolificacy of Small Tail Han sheep. Significance: Fecundity critically affects the profitability of sheep production, but the genetic mechanism of high-prolificacy is still unclear in sheep. We identified potential signaling pathways and differentially abundant proteins associated with reproductive performance through a combination of sheep uterus tissues proteome and transcriptome analyses. These findings will facilitate a better revealing the mechanism and provide possible targets for molecular design breeding for the formation of polytocous traits in sheep.
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