Fine scale population genetic structure of Varroa destructor, an ectoparasitic mite of the honey bee (Apis mellifera).
Fine scale population genetic structure of Varroa destructor, an ectoparasitic mite of the honey bee (Apis mellifera).
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DOI：
10.1007/s13592-016-0453-7
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发表时间：
2016
期刊：
影响因子：
2.4
通讯作者：
Brosi BJ
中科院分区：
文献类型：
--
作者：
Dynes TL;De Roode JC;Lyons JI;Berry JA;Delaplane KS;Brosi BJ
瓦螨是一种专性体表寄生螨类，是蜜蜂目前面临的最重要的生物威胁。我们使用中性微卫星分析了以前未报道的破坏弧菌的精细种群结构，该物种的特征是由于多个瓶颈事件、单倍体和主要兄弟姐妹配对而极度缺乏遗传多样性。我们的结果令人惊讶地表明，可检测到的分层遗传变异存在于蜂群之间、蜂房内的蜂群之间，甚至在蜂群内。这一群体内寄生虫多样性的发现提供了经验证据，表明破坏弧菌的传播不是单纯通过垂直传播完成的，而是水平传播(自然或人工中介)必须定期发生。
Varroa destructor is an obligate ectoparasitic mite and the most important biotic threat currently facing honey bees (Apis mellifera). We used neutral microsatellites to analyze previously unreported fine scale population structure of V. destructor, a species characterized by extreme lack of genetic diversity owing to multiple bottleneck events, haplodiploidy, and primarily brother-sister matings. Our results surprisingly indicate that detectable hierarchical genetic variation exists between apiaries, between colonies within an apiary, and even within colonies. This finding of within-colony parasite diversity provides empirical evidence that the spread of V. destructor is not accomplished solely by vertical transmission but that horizontal transmission (natural or human-mediated) must occur regularly.