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Hereditas(Beijing) ›› 2020, Vol. 42 ›› Issue (4): 388-402.doi: 10.16288/j.yczz.19-347

• Research Article • Previous Articles     Next Articles

Comparison and analysis of lincRNAs expression profile in the hypothalamic-pituitary-ovarian axis of anestrous and estrous primiparous sows

Qiaoling Ren1, Jiaqing Zhang1, Dongfeng Lu2, Jing Wang1, Junfeng Chen1, Qiang Ma1, Xianxiao Bai1, Hongxiao Guo1, Binwen Gao1, Baosong Xing1()   

  1. 1. Henan Key Laboratory of Farm Animal Breeding and Nutritional Regulation , Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou 450002,China
    2. Henan Huahuaniu Industrial Corporation, Zhengzhou 450000, China
  • Received:2019-11-14 Revised:2020-02-29 Online:2020-04-20 Published:2020-03-26
  • Contact: Xing Baosong E-mail:baosong@126.com
  • Supported by:
    Supported by Science and Technology Innovation Program No(2020CX06);Key Special Rresearch and Development Program of Henan Province No(182102110063);Henan Province Financial Budget for Scientific Research Program No(2019CY015);the Program for Independent Innovative Research in Henan Academy of Agricultural Sciences No(2019ZC42)

Abstract:

The normal estrus in weaned primiparous sows has a great impact on pig production and abnormal estrus is the main reason for the elimination of primiparous sows. In this study, we studied the long intergenic noncoding RNAs (lincRNAs) in the hypothalamic-pituitary-ovarian axis of anestrous and estrous primiparous sows. These long intergenic noncoding RNAs (lincRNAs) were screened and compared through RNA-seq analysis. The expression profiles of lincRNAs were obtained and their characteristics and functions were preliminarily analyzed. There are 3519 novel lincRNAs identified in the hypothalamic-pituitary-ovarian axis of anestrous and estrous primiparous sows. Compared with estrous primiparous sows, 17 differentially expressed lincRNAs were indentified, including 12 up-regulated lincRNAs and 5 down-regulated lincRNAs (FC≥2, P<0.05). The four lincRNA transcripts obtained through selection were verified by qRT-PCR, which are consistent with the RNA-seq results. The GO, KEGG pathway, and lincRNA-mRNA co-expression network analysis of these 17 lincRNAs revealed that these lincRNAs were mainly involved in reproductive activities, such as oocyte meiosis mature, ovarian cells differentiation and granulosa cells apoptosis. The results enriched the data resources of pig lincRNAs and provided useful information for further research about the reproductive performance of primiparous sows.

Key words: lincRNAs, anestrus, estrus, primiparous sows, hypothalamic-pituitary-ovarian axis