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Differential Expression of Circular RNAs in Polytocous and Monotocous Uterus during the Reproductive Cycle of Sheep

文献类型： 外文期刊

作者： La, Yongfu 1 ; Tang, Jishun 1 ; Di, Ran 1 ; Wang, Xiangyu 1 ; Liu, Qiuyue 1 ; Zhang, Liping 2 ; Zhang, Xiaosheng 4 ; Zhan 1 ;

作者机构： 1.Chinese Acad Agr Sci, Inst Anim Sci, Key Lab Anim Genet Breeding & Reprod, Minist Agr & Rural Affairs, 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

关键词： sheep; circRNAs; prolificacy; RNA-Seq; uterus

期刊名称：ANIMALS （ 影响因子：2.752； 五年影响因子：2.942 ）

ISSN： 2076-2615

年卷期： 2019 年 9 卷 10 期

页码：

收录情况： SCI

摘要： Simple Summary The uterus is an important reproductive organ that provides nutrition and place for embryonic development. In this study, we identified circular RNAs by deep sequencing and analyzed their expression in the uteri of polytocous and monotocous sheep (FecB++) during follicular and luteal phases. Gene Ontology (GO) and KEGG enrichment analyses revealed that the source genes of these differential circular RNAs (circRNAs) were mainly enriched in reproductive hormone- and energy metabolism-related pathways. These results provide information on the molecular mechanisms of sheep prolificacy. Abstract CircRNA plays important roles in cell proliferation, differentiation, autophagy and apoptosis during development. However, there are few reports on circRNAs related to livestock reproduction. In this study, we identified circRNAs by deep sequencing and analyzed their expression in the uteri of polytocous and monotocous sheep (FecB++) during follicular and luteal phases. There were 147 and 364 circRNAs with differential expression in the follicular and luteal phases, respectively. GO and KEGG enrichment analysis was performed for the host genes of the circRNAs to predict the functions of differentially expressed circRNAs. These source genes were mainly involved in the estrogen signaling pathway, TGF beta signaling pathway, GnRH signaling pathway, oxytocin signaling pathway, pentose phosphate pathway, and starch and sucrose metabolism related to reproduction and energy metabolism. CircRNA expression patterns were validated by RT-qPCR. Our findings provide a solid foundation for the identification and characterization of key important circRNAs involved in reproduction.

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