鉴定,表达和功能分析的Rbpms2拼接变体在日本鱼的性腺体
Cui Liu1, Longsheng Zhang1, You Xia1
1Key Laboratory of Exploration and Utilization of Aquatic Genetic Resources, Ministry of Education, Shanghai Ocean University, Shanghai 201306, China.
General and comparative endocrinology
|October 16, 2024
概括
在日本鱼中,具有多重拼接2 (Rbpms2) 变异的RNA结合蛋白影响性差异化. Rbpms2的目标是与性别相关的基因,促进女性发育,抑制阴道中的男性特征.
科学领域:
- 分子生物学分子生物学
- 发展生物学 发展生物学
- 遗传学 遗传学 是一个
背景情况:
- 具有多重拼接2的RNA结合蛋白 (Rbpms2) 在脊椎动物卵细胞发育和雌性性别分化中发挥作用.
- 在日本鱼 (Paralichthys olivaceus) 中发现了两种拼接变体,Rbpms2.1和Rbpms2.2.
研究的目的:
- 为了研究Rbpms2拼接变体在日本鱼的性腺发育和性别差异化中的功能.
- 识别由Rbpms2调节的目标性相关基因2.
主要方法:
- 识别和表征Rbpms2拼接变种.
- 实时定量PCR (qPCR) 和现场杂交用于表达分析.
- 在原发性淋巴细胞中进行siRNA干扰和过度表达测试.
- 生物信息分析以确定与性别相关的基因上的Rbpms2结合部位.
主要成果:
- Rbpms2.1和Rbpms2.2在卵巢表达高于丸,在卵细胞和精子细胞中具有特定的局部化.
- 在关键的性别相关基因 (dmrt1, sox9, amh, foxl2, wnt4) 的5'UTR,3'UTR和ORF中确定了Rbpms2结合位.
- Rbpms2抑制了与男性相关的基因表达 (dmrt1, sox9, amh) 并促进了与女性相关的基因表达 (foxl2, wnt4).
结论:
- 在日本鱼中,Rbpms2变异对生殖腺发育至关重要.
- Rbpms2通过准关键的与性别相关的基因来调节性别分化,可能通过结合它们的UTR和ORF区域.
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