Alternative Splicing Dynamics of the Hypothalamus-Pituitary-Ovary Axis During Pubertal Transition in Gilts
文献类型： 外文期刊
作者： Pan, Xiangchun 1 ; Li, Qingnan 2 ; Chen, Danxia 1 ; Gong, Wentao 1 ; Li, Nian 1 ; Jiang, Yao 1 ; Zhang, Hao 1 ; Chen, Yao 1 ;
作者机构： 1.South China Agr Univ, Coll Anim Sci, Natl Engn Res Ctr Breeding Swine Ind, Guangdong Prov Key Lab Agroanim Genom & Mol Breed, Guangzhou, Peoples R China
2.Sun Yat Sen Univ, Guangzhou Higher Educ Mega Ctr, Sch Life Sci, State Key Lab Biocontrol, Guangzhou, Peoples R China
3.Guangdong Lab Anim Monitoring Inst, Guangdong Prov Key Lab Lab Anim, Guangzhou, Peoples R China
关键词： alternative splicing; differentially spliced genes; hypothalamus-pituitary-ovary axis; gilts; puberty
期刊名称：FRONTIERS IN GENETICS （ 影响因子：3.258； 五年影响因子：4.005 ）
ISSN：
年卷期： 2021 年 12 卷
页码：
收录情况： SCI
摘要： The timing of puberty in mammals marks the point at which reproduction becomes possible. Abnormalities in the timing of puberty may exert a series of negative effects on subsequent health outcomes. Alternative splicing (AS) has not only emerged as a significant factor in the transcription of genes but it is also reported to play a role in the timing of puberty. However, to date, the changes and dynamics of AS during the onset of puberty is extremely seldom explored. In the present study, we used gilts as a research model to investigated the dynamics of AS and differentially expressed AS (DEAS) events within the hypothalamus-pituitary-ovary (HPO) axis across pre-, in-, and post-puberty. We detected 3,390, 6,098, and 9,085 DEAS events in the hypothalamus, pituitary, and ovary when compared across pre-, in-, and post-pubertal stages, respectively. Within the entire HPO axis, we also identified 22,889, 22,857, and 21,055 DEAS events in the pre-, in-, and post-pubertal stages, respectively. Further analysis revealed that the differentially spliced genes (DSGs) associated with staged DEAS events were likely to be enriched in the oxytocin signaling pathway, thyroid hormone signaling pathway, GnRH signaling pathway, and oocyte meiosis signaling pathway. The DSGs associated with DEAS events across the entire HPO axis were enriched in endocytosis signaling pathway, the MAPK signaling pathway, and the Rap1 signaling pathway. Moreover. the ASs of TAC1, TACR3, CYP19A1, ESR1, ESRRA, and FSHR were likely to regulate the functions of the certain HPO tissues during the onset of puberty. Collectively, the AS dynamics and DEAS events were comprehensively profiled in hypothalamus, pituitary, and ovary across the pre-, in-, and post-pubertal stages in pigs. These findings may enhance our knowledge of how puberty is regulated by AS and shed new light on the molecular mechanisms underlying the timing of puberty in mammals.
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