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Alterations of mRNA and lncRNA profiles associated with the extracellular matrix and spermatogenesis in goats

文献类型: 外文期刊

作者: Chen, Haolin 1 ; Miao, Xiaomeng 2 ; Xu, Jinge 2 ; Pu, Ling 2 ; Li, Liang 2 ; Han, Yong 2 ; Mao, Fengxian 3 ; Ma, Youji 1 ;

作者机构: 1.Gansu Agr Univ, Coll Anim Sci & Technol, Lanzhou 730000, Peoples R China

2.Guizhou Acad Agr Sci, Inst Anim Husb & Vet, Guiyang 550000, Guizhou, Peoples R China

3.Guizhou Prov Livestock & Poultry Genet Resources, Guiyang 550000, Guizhou, Peoples R China

关键词: Goat; LncRNA; mRNA; Puberty; Testis

期刊名称:ANIMAL BIOSCIENCE

ISSN: 2765-0189

年卷期: 2022 年 35 卷 4 期

页码:

收录情况: SCI

摘要: Objective: Spermatozoa are produced within the seminiferous tubules after sexual maturity. The expression levels of mRNAs and lncRNAs in testicular tissues are different at each stage of testicular development and are closely related to formation of the extracellular matrix (ECM) and spermatogenesis. Therefore, we set out to study the expression of lncRNAs and mRNAs during the different developmental stages of the goat testis. Methods: We constructed 12 RNA libraries using testicular tissues from goats aged 3, 6, and 12 months, and studied the functions of mRNAs and lncRNAs using the gene ontogeny (GO) and Kyoto encyclopedia of genes and genomes (KEGG) databases. Relationships between differentially expressed genes (DEGs) were analyzed by lncRNA-mRNA co expression network and protein-protein interaction network (PPI). Finally, the protein expression levels of matrix metalloproteinase 2 (MMP2), insulin-like growth factor 2 (IGF2), and insulin-like growth factor-binding protein 6 (IGFBP6) were detected by western blotting. Results: We found 23, 8, and 135 differentially expressed lncRNAs and 161, 12, and 665 differentially expressed mRNAs that were identified between 3 vs 6, 6 vs 12, and 3 vs 12 months, respectively. GO, KEGG, and PPI analyses showed that the differential genes were mainly related to the ECM. Moreover, MMP2 was a hub gene and co-expressed with the lncRNA TCONS-0002139 and TCONS-00093342. The results of quantitative reverse-transcription polymerase chain reaction verification were consistent with those of RNA-seq sequencing. The expression trends of MMP2, IGF2, and IGFBP6 protein were the same as that of mRNA, which all decreased with age. IGF2 and MMP2 were significantly different in the 3 vs 6-month-old group (p<0.05). Conclusion: These results improve our understanding of the molecular mechanisms involved in sexual maturation of the goat testis.

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