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沃尔巴基亚在宿主物种内杀死雄性机制的演变

Hiroshi Arai¹, Arman Wijonarko², Susumu Katsuma³

¹Institute of Infection, Veterinary and Ecological Sciences, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK; Faculty of Agriculture, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia; United Graduate School of Agricultural Science, Tokyo University of Agriculture and Technology, 3-5-8 Saiwai, Fuchu 183-8509, Tokyo, Japan; National Agriculture and Food Research Organization (NARO), 1-2 Owashi, Tsukuba 305-8634, Ibaraki, Japan.

Current biology : CB

|April 10, 2025

概括

杀死雄性昆虫的细菌发展出新的杀死雄性昆虫的策略,即使宿主产生抵抗力. 这种细菌进化推动了与宿主昆虫的持续军备竞赛,塑造了两种物种.

科学领域:

进化生物学是进化的生物学.
微生物遗传学微生物遗传学
昆虫生态昆虫生态

背景情况:

杀死男性的细菌共生体在关节动物中很常见,扭曲了性别比率并影响了宿主进化.
男人杀戮在不同的宿主性别确定系统中通过多种机制逐渐演变.
主体耐药性通常通过抑制器突变进化,恢复男性生存.

研究的目的:

为了研究沃尔巴基亚细菌中一种新型的杀死雄性机制,该机制可以绕过宿主抵抗.
了解这种新的男性杀戮策略的遗传基础和进化影响.

主要方法:

对杀死男性的沃尔巴基亚菌株 (wBol1Y和wBol1) 的基因组分析.
在体外和体内实验中评估wBol1Y对宿主基因表达的影响.
识别和功能分析候选杀死男性的基因,包括Hb-oscar.

主要成果:

来自Hypolimnas bolina蝶的一种新的Wolbachia菌株 (wBol1Y) 尽管存在宿主耐药性,但仍表现出杀死雄性.
wBol1Y携带了一种独特的孕细胞插入物,含有杀死男性的候选基因,包括Hb-oscar.
wBol1Y通过使基因拼接和表达变得女性化来破坏宿主性别的决定,而Hb-oscar对于这种破坏来说已经足够了.

结论:

杀死男性的多样性源于与宿主性别决定和物种内部进化的相互作用.
抑制杀死男性的进化推动了新的杀死细菌机制的出现,这表明共生动物和宿主之间不断升级的进化军备竞赛.

关键词:

奥斯卡奥斯卡是指奥斯卡奖项的获得者.蝶蝶蝶蝶蝶作为一个内生生体,它是内生生体.进化的军备竞赛.男人杀人男人杀人男人杀人预言预言预言预言压缩器的压缩器在WMK中,WMK就是WMK.

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