LPXRFa down-regulates brain reproductive genes in yellowtail kingfish (Seriola lalandi)

文献类型: 外文期刊

第一作者: Wang, Bin

作者: Wang, Bin;Wang, Kaijie;Cui, Aijun;Wang, Weixin;Fang, Lu;Xu, Yongjiang;Jiang, Yan;Liu, Xuezhou;Wang, Bin;Xu, Yongjiang;Jiang, Yan;Liu, Xuezhou;Wang, Kaijie;Wang, Weixin;Fang, Lu

作者机构: Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Key Lab Sustainable Dev Marine Fisheries, Minist Agr & Rural Affairs, Qingdao 266071, Peoples R China;Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Fisheries & Food Prod Proc, Qingdao 266237, Peoples R China;Zhejiang Ocean Univ, Natl Engn Res Ctr Marine Aquaculture, Zhoushan 316022, Peoples R China;Shanghai Ocean Univ, Coll Fisheries & Life Sci, Shanghai 201306, Peoples R China

关键词: LPXRFa; GnRH; Kisspeptin; Reproduction; Seriola lalandi

期刊名称:AQUACULTURE ( 2021影响因子:5.135; 五年影响因子:5.125 )

ISSN: 0044-8486

年卷期: 2021 年 545 卷

页码:

收录情况: SCI

摘要: Gonadotropin-inhibitory hormone (GnIH) is a hypothalamic peptide that inhibits the reproductive axis of mammals and birds. Little information is available in teleosts regarding its actions on the brain neuroendocrine systems controlling reproduction. Here, we analyzed the effects of intraperitoneal injection of the piscine GnIH ortholog LPXRFa peptides (LPXRFa-1, LPXRFa-2, and LPXRFa-3) on the expression of reproduction-related genes in the brain of yellowtail kingfish. Our results revealed an inhibitory effect of the three LPXRFa peptides on gnrh1, lpxrfa, kiss1r, kiss2r, and lpxrfa-r mRNA levels. Both LPXRFa-1 and LPXRFa-2 were found to suppress kiss2 expression, and LPXRFa-1 reduced gnrh2 expression. Moreover, LPXRFa-3 induced a decrease in kiss1 and gnrh2 expression. Overall, these data suggest the inhibitory actions of each LPXRFa peptide encoded by the same precursor on the brain reproductive genes in yellowtail kingfish.

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