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Identification and characterization of mRNAs and lncRNAs in the uterus of polytocous and monotocous Small Tail Han sheep (Ovis aries)

文献类型： 外文期刊

作者： La, Yongfu 1 ; Tang, Jishun 1 ; He, Xiaoyun 1 ; Di, Ran 1 ; Wang, Xiangyu 1 ; Liu, Qiuyue 1 ; Zhang, Liping 2 ; Zhang, Xi 1 ;

作者机构： 1.Chinese Acad Agr Sci, Key Lab Anim Genet & Breeding & Reprod, Minist Agr, Inst Anim Sci, Beijing, Peoples R China

2.Gansu Agr Univ, Coll Anim Sci & Technol, Lanzhou, Gansu, Peoples R China

3.Anhui Acad Agr Sci, Inst Anim Husb & Vet Med, Hefei, Anhui, Peoples R China

4.Tianjin Inst Anim Sci, Tianjin, Peoples R China

关键词： LncRNAs; Prolificacy; RNA-Seq; Small Tail Han sheep; Uterus

期刊名称：PEERJ （ 影响因子：2.984； 五年影响因子：3.369 ）

ISSN： 2167-8359

年卷期： 2019 年 7 卷

页码：

收录情况： SCI

摘要： Background. Long non-coding RNAs (lncRNAs) regulate endometrial secretion and uterine volume. However, there is little research on the role of lncRNAs in the uterus of Small Tail Han sheep (FecB++). Herein, RNA-seq was used to comparatively analyze gene expression profiles of uterine tissue between polytocous and monotocous sheep (FecB++) in follicular and luteal phases. Methods. To identify lncRNA and mRNA expressed in the uterus, the expression of lncRNA and mRNA in the uterus of Small Tail Han sheep (FecB++) from the polytocous group (n = 6) and the monotocous group (n = 6) using RNA-sequencing and real-time polymerase chain reaction (RT-PCR). Identification of differentially expressed lncRNAs and mRNAs were performed between the two groups and two phases. Gene ontology (GO) and pathway enrichment analyses were performed to analyze the biological functions and pathways for the differentially expressed mRNAs. LncRNA-mRNA co-expression network was constructed to further analyses the function of related genes. Results. In the follicular phase, 473 lncRNAs and 166 mRNAs were differentially expressed in polytocous and monotocous sheep; in the luteal phase, 967 lncRNAs and 505 mRNAs were differentially expressed in polytocous and monotocous sheep. GO and KEGG enrichment analysis showed that the differentially expressed lncRNAs and their target genes are mainly involved in ovarian steroidogenesis, retinol metabolism, the oxytocin signaling pathway, steroid hormone biosynthesis, and the Foxo signaling pathway. Key lncRNAs may regulate reproduction by regulating genes involved in these signaling pathways and biological processes. Specifically, UGT1A1, LHB, TGFB1, TAB1, and RHOA, which are targeted by MSTRG.134747, MSTRG.82376, MSTRG.134749, MSTRG.134751, and MSTRG.134746, may play key regulatory roles. These results offer insight into molecular mechanisms underlying sheep prolificacy.

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