Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, China.
College of Animal Science and Technology, Anhui Agricultural University, Hefei 230036, China.
Genes (Basel). 2022 Jun 8;13(6):1031. doi: 10.3390/genes13061031.
Artificial directional selection has replaced natural selection and resulted in trait differences across breeds in domestic animal breeding. However, the molecular mechanism by which the oviduct regulates litter size remains largely elusive in goats during the follicular phase. Accumulating data have linked lncRNAs to reproductive activities; however, little is known about the modulation mechanism in the oviduct. Herein, RNA-seq was used to measure mRNA and lncRNA expression levels in low- and high-fecundity goats. We observed distinctive differences in mRNA and lncRNA in terms of different kidding numbers and detected the differential expression of 1640 mRNA transcripts and 271 lncRNA transcripts. Enrichment analysis of differentially expressed mRNAs (DEGs) suggested that multiple pathways, such as the AMPK, PI3K-Akt, calcium signaling pathway, oocyte meiosis, ABC transporter, and ECM-receptor interaction pathways, directly or indirectly affected goat reproduction. Additionally, coexpression of differentially expressed lncRNAs (DEL)-genes analysis showed that XLOC_021615, XLOC_119780, and XLOC_076450 were -acting as the DEGs , , and , respectively, and could regulate embryo development. Moreover, XLOC_020079, XLOC_107361, XLOC_169844, XLOC_252348 were the -regulated elements of the DEGs and , and the target DEGs of XLOC_089239, XLOC_090063, XLOC_107409, XLOC_153574, XLOC_211271, XLOC_251687 were associated with prolificacy. Collectively, our study has offered a thorough dissection of the oviduct lncRNA and mRNA landscapes in goats. These results could serve as potential targets of the oviduct affecting fertility in goats.
人工定向选择已经取代了自然选择,导致家畜繁殖中不同品种的特征差异。然而,在卵泡期,关于输卵管如何调节产仔数的分子机制在山羊中仍然很大程度上难以捉摸。越来越多的数据将 lncRNA 与生殖活动联系起来;然而,关于输卵管的调节机制知之甚少。在此,我们使用 RNA-seq 测量了低产和高产山羊中 mRNA 和 lncRNA 的表达水平。我们观察到不同产仔数之间在 mRNA 和 lncRNA 方面存在明显差异,并检测到 1640 个 mRNA 转录本和 271 个 lncRNA 转录本的差异表达。差异表达 mRNA (DEGs) 的富集分析表明,多个途径,如 AMPK、PI3K-Akt、钙信号通路、卵母细胞减数分裂、ABC 转运体和 ECM-受体相互作用途径,直接或间接影响山羊繁殖。此外,差异表达 lncRNA (DEL)-基因的共表达分析表明,XLOC_021615、XLOC_119780 和 XLOC_076450 分别作为 DEGs 的正调控因子,可以调节胚胎发育。此外,XLOC_020079、XLOC_107361、XLOC_169844、XLOC_252348 是 DEGs 的负调控因子,而 XLOC_089239、XLOC_090063、XLOC_107409、XLOC_153574、XLOC_211271、XLOC_251687 的靶标 DEGs 与多产性有关。总之,我们的研究提供了对山羊输卵管 lncRNA 和 mRNA 图谱的全面剖析。这些结果可以作为影响山羊生育力的输卵管的潜在靶点。