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在实验室条件下,在Anopheles stephensi的同雌性世代中增加异构性和平衡选择

Ajeet Kumar Mohanty¹, Dipti Deshpande², Disha Shah²

¹Field Station, ICMR-National Institute of Malaria Research, DHS Building, Campal, Panaji, Goa, India, 403001. ajeet.nimr@gmail.com.

|July 11, 2025

概括

疟疾载体Anopheles stephensi通过平衡选择来维持遗传多样性,特别是在代谢和感官感知基因中. 这种适应有助于其在新环境中的生存和扩张.

科学领域:

基因组学就是基因组学.
进化生物学进化生物学
医学昆虫学医学昆虫学

背景情况:

城市疟疾载体Anopheles stephensi已经扩散到非洲,构成严重的公共卫生风险.
了解一个. 斯蒂芬西的适应基因对于有效的载体控制策略至关重要.
均衡选择保持了遗传多样性,特别是与免疫相关的基因,这对于载体的生存至关重要.

研究的目的:

为了识别在Anopheles stephensi中经历平衡选择的基因和位点.
为了分析实验室培养的An.的基因组变化. 斯蒂芬西跨越了150个世代.
为有针对性的载体控制工作提供见解.

主要方法:

在实验室培养的雌性同胞的基因组测序. 斯蒂芬西跨越多个世代 (0-150).
用塔吉马的D和β分数来分析基因组数据,以检测选择的签名.
在基于β分数的平衡选择下基因的识别.

主要成果:

在An.中确定了选择的签名. 史蒂芬斯基因组. 史蒂芬斯基因组.
在平衡选择中的顶级基因包括那些涉及感官感知 (ASTEI04624,ASTEI04623),碳水化合物代谢 (ASTEI10474) 和活性蛋白结合 (ASTEI03792) 的基因.
一个基因 (ASTEI01081) 仍然没有功能性表征.

结论:

阿诺菲莱斯斯蒂芬西维持异构性和平衡性选择在特定的基因生存.
与碳水化合物代谢和化学接收相关的基因对适应至关重要.
这些发现表明一种功能性适应实验室饮食,可能会影响载体控制策略.

关键词:

这种虫是Anopheles stephensiensi.选择平衡的平衡选择.整个基因组的测序.

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