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无花果黄蜂中的气味结合和化学感知蛋白:比较研究的进化见解

Hui Yu^1,2, Xiaojue Nong³, Weicheng Huang³

¹Plant Resources Conservation and Sustainable Utilization, The Chinese Academy of Sciences, Guangzhou, 510650, China. yuhui@scbg.ac.cn.

Journal of molecular evolution

|January 27, 2024

概括

无花果黄蜂依赖于化学传感基因,包括臭味结合蛋白 (OBPs) 和化学传感蛋白 (CSPs),以实现它们与无花果树的基本互惠. 它们的进化是保守的,强调了这些基因在黄蜂生命中的关键作用.

科学领域:

昆虫学昆虫学是一门学科.
分子进化分子进化
化学传感系统化学传感系统

背景情况:

无花果黄蜂 (Agaonidae) 与无花果树 (Ficus) 呈现出高度特异性的互惠关系.
化学传感基因,特别是气味结合蛋白 (OBPs) 和化学传感蛋白 (CSPs),对于昆虫的嗅觉和行为至关重要.

研究的目的:

在无花果黄蜂中研究OBP和CSP的进化动态.
为了理解这种独特的互惠主义中化学感应的分子基础.

主要方法:

在六个属中对25种无花果黄蜂物种的转录组测序.
对OBP和CSP基因家族的鉴定和遗传学分析.
对OBP和CSP基因进行选择压力分析 (dN/dS比).

主要成果:

确定了321个OBP和240个CSP,基因数量因物种而异.
OBPs分为PBP (激素结合) 和GOBP (一般气味剂结合) 组.
CSP被分为12个具有不同功能的组;通过净化选择检测到保存进化,除了在CSP1中在积极选择下的一个位点.

结论:

在无花果黄蜂中,OBP和CSP的演变在很大程度上是保守的,反映了它们的重要作用.
这些基因对于无花果黄蜂的生存和繁殖在它们的相互关系中是不可或缺的.
提供了对无花果黄蜂化学传感的分子机制的基础见解.

关键词:

化学接收器化学接收器进化进化进化进化进化进化进化菲克斯 (Ficus Ficus) 是一个小说.无花果黄蜂黄蜂黄蜂互惠主义互惠主义

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