石红娟,茹笑影,刘玉琪,郑芸,伍旭辉,黄洋,李广丽,江东能

• 1:广东海洋大学水产学院
• 2:广东海洋大学广东省名特优鱼类生殖调控与繁育工程技术研究中心
• 3:金湖县人民医院

摘要(Abstract)：

【目的】通过转录组测序分析雌激素(17β-Estradiol,E_2)对雌性金钱鱼下丘脑中基因表达的影响。【方法】E_2体注射后进行雌性金钱鱼下丘脑转录组测序,基因功能注释,差异基因筛选、鉴定,GO(Gene Ontology annotation)和KEGG(Kyoto Encyclopedia of Genes and Genomes)信号通路富集分析,并利用实时定量PCR(Real-time quantitative PCR,q PCR)检测E_2体注射后雌性金钱鱼下丘脑中相关基因的表达。【结果】雌性金钱鱼下丘脑转录组测序共测得Clean reads为190 909 756,注释到17 687个基因,筛选和鉴定了22个差异表达基因,包括prl、erf3α、pgr和cyp19a1b等11个表达上调基因和chsy1、muc17l、prf1和hla-α等11个下调基因。通过KEGG功能富集分析发现差异基因涉及13个代谢通路。转录组和q PCR结果显示,与对照雌鱼相比,E_2注射组雌鱼下丘脑中prl、pgr、cyp19a1b和3β-HSDI的表达显著上调,而生长轴相关基因ghrh、sst1、sst3、sst5和sst6的表达未受影响。【结论】E_2通过反馈作用调节下丘脑中部分性类固醇激素合成通路相关基因的表达,但不影响生长相关基因的表达。

关键词(KeyWords)： 金钱鱼;下丘脑;17β-雌二醇;转录组分析

Abstract:

Keywords:

基金项目(Foundation): 国家“蓝色粮仓科技创新”重点项目(2018YFD0901200);; 广东省自然科学基金(2018B030311050和2019A1515012042);; 广东省普通高校青年创新人才类项目(2018KQNCX106和2018KTSCX090);; 湛江市非资助科技攻关计划项目(2020B01079);; 广东海洋大学博士启动项目

作者(Author): 石红娟,茹笑影,刘玉琪,郑芸,伍旭辉,黄洋,李广丽,江东能

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