Oviduct Transcriptomic Reveals the Regulation of MRNAs and LncRNAs Related to Goat Prolificacy in the Luteal Phase

Overview

Journal Animals (Basel)

Date 2022 Oct 27

PMID 36290212

Authors

Zhipeng Sun

Qionghua Hong

Yufang Liu

Chunhuan Ren

Xiaoyun He

Yanting Jiang

Yina Ouyang

Mingxing Chu

Zijun Zhang

Affiliations

Soon will be listed here.

Abstract

The oviduct is associated with embryo development and transportation and regulates the pregnancy success of mammals. Previous studies have indicated a molecular mechanism of lncRNAs in gene regulation and reproduction. However, little is known about the function of lncRNAs in the oviduct in modulating goat kidding numbers. Therefore, we combined RNA sequencing (RNA-seq) to map the expression profiles of the oviduct at the luteal phase from high- and low-fecundity goats. The results showed that 2023 differentially expressed mRNAs (DEGs) and 377 differentially expressed lncRNAs (DELs) transcripts were screened, and 2109 regulated lncRNA-mRNA pairs were identified. Subsequently, the genes related to reproduction (, , and ) and those associated with embryonic development and maturation (, ) were identified. KEGG analysis of the DEGs revealed that the GnRH- and prolactin-signaling pathways, progesterone-mediated oocyte maturation, and oocyte meiosis were related to reproduction. GSEA and KEGG analyses of the target genes of DELs demonstrated that several biological processes and pathways might interact with oviduct functions and the prolificacy of goats. Furthermore, the co-expression network analysis showed that XLOC_029185, XLOC_040647, and XLOC_090025 were the cis-regulatory elements of the DEGs , , and , respectively; these factors might be associated with the success of pregnancy and glucolipid metabolism. In addition, the , , , and were trans-regulated by lncRNAs, predominantly mediating oviductal transport to the embryo and energy metabolism. Our findings could pave the way for a better understanding of the roles of mRNAs and lncRNAs in fecundity-related oviduct function in goats.

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