嗅觉受体基因的比较表达分析在士兵和工人种姓差异化命运在白中的个人中
Takumi Hanada1, Masaru K Hojo2, Kiyoto Maekawa3
1Graduate School of Science and Engineering University of Toyama Toyama Japan.
Ecology and evolution
|December 15, 2025
概括
长幼虫嗅觉基因表达的差异影响了种姓的发展. 具体来说,电离子受体 (IRs) 和气味受体 (ORs) 的表达方式各不相同,影响了士兵与工人的命运.
科学领域:
- 甲蟲生物學 甲蟲生物學
- 昆虫的行为昆虫的行为
- 分子遗传学 分子遗传学
背景情况:
- 虫的种姓区分对于殖民地功能至关重要.
- 湿木, *Zootermopsis nevadensis*,为研究在自然条件下士兵种的发展提供了一个模型.
- 第三阶段幼虫的行为差异表明,与生殖识别相关的化学传感能力存在差异.
研究的目的:
- 为了研究嗅觉基因表达在确定Zootermopsis nevadensis*幼虫的种姓差异化命运中的作用.
- 为了比较不同种类的幼虫之间嗅觉受体基因 (OR和IR) 的表达模式.
主要方法:
- 对第3阶段幼虫阶段持续时间的分析.
- 来自具有不同发育命运的第三阶段幼虫的天线组织的RNA测序 (RNA-seq).
- 实时定量PCR (qPCR) 用于分析关键共受体基因 (Orco,IR8a,IR25a) 的表达.
主要成果:
- 在不同种姓命运的幼虫之间观察到第三阶段周期持续时间的显著差异.
- RNA-seq显示,与异味受体 (OR) 基因 (9.7%) 相比,异能受体 (IR) 基因 (18.9%) 的差异性表达在种姓之间更高.
- 同受体基因 (Orco,IR8a,IR25a) 在幼虫中高度表达,从第三阶段开始就具有工人分化命运.
结论:
- 化学感知能力的变化,特别是涉及IR和OR,对于*Zootermopsis nevadensis*中调节种姓差异至关重要.
- 在注定成为工人的幼虫中,共同受体基因的早期表达表明预先确定的化学感知差异影响了发育途径.
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