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热可塑性差异的转录学与过度夸张的男性性特征的选择相关

Agata Plesnar-Bielak¹, Jonathan M Parrett², Sebastian Chmielewski²

¹Institute of Environmental Sciences, Faculty of Biology, Jagiellonian University, ul. Gronostajowa 7, 30-387, Kraków, Poland. agata.plesnar@gmail.com.

|May 27, 2024

概括

了解热可塑性演变需要了解分子机制. 在雄性球球上选择不同的形态改变了两性基因表达,影响了热反应途径.

科学领域:

进化生物学是进化的生物学.
分子生物学分子生物学
基因组学就是基因组学.

背景情况:

了解热可塑性演变取决于识别分子机制和人口层面的差异.
影响生理对温度反应的基因对于塑性特征的选择至关重要.

研究的目的:

研究从不同男性形态 (战斗者和混杂者) 选择的种群中的雄性和雌性灯泡中对温度的转录反应.
确定导致不同温度下选定种群间热反应分歧的分子机制.

主要方法:

利用RNA测序 (RNAseq) 来分析基因表达模式.
在暴露于不同温度 (18°C和28°C) 的雄性和雌性灯泡中检查了转录反应.
分析了基因表达数据以检测温度选择的相互作用.

主要成果:

温度下降 (18°C) 揭示了来自战士选定群体的男性的更高的转录组可塑性,38个基因被上调.
在28°C时,没有观察到基因表达中的温度选择相互作用,这表明涉及到形态特异的热耐受性基因.
男性的选择影响了女性的基因表达,这可能解释了之前观察到的女性群体之间的温度依赖的健康差异.

结论:

在男性性选择特征上的分歧选择可以在两性中驱动温度可塑性路径的分歧.
不同的分子机制是战斗机和混器选择的群体在温度降低或升高时的热响应差异的基础.
这项研究强调了性选择与分子层面的环境适应之间的相互作用.

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