雄性疾病易感性在单倍二倍体昆虫社会进化中的作用。
The role of male disease susceptibility in the evolution of haplodiploid insect societies.
作者信息
O'Donnell Sean, Beshers Samuel N
机构信息
Department of Psychology, University of Washington, Seattle, WA 98195, USA.
出版信息
Proc Biol Sci. 2004 May 7;271(1542):979-83. doi: 10.1098/rspb.2004.2685.
Heterozygosity at loci affecting resistance against parasites can benefit host fitness. We predict that, in haplodiploid species, haploid males will suffer decreased parasite resistance relative to diploid females. We suggest that elevated susceptibility in haploid males has shaped the evolution of social behaviour in haplodiploid species. Male susceptibility will select for behavioural adaptations that limit males' exposure to pathogens and that limit male transmission of pathogens within and between colonies. The relatedness-asymmetry hypothesis that has been advanced to explain female-only workers does not make these predictions. We review the relevant evidence for genetic effects on parasite resistance in insects and summarize empirical evidence that relates to the haploid-susceptibility hypothesis.
影响寄生虫抗性的基因座杂合性有利于宿主健康。我们预测，在单倍二倍体物种中，单倍体雄性相对于二倍体雌性将具有较低的寄生虫抗性。我们认为，单倍体雄性易感性增强塑造了单倍二倍体物种社会行为的进化。雄性易感性将促使行为适应的产生，这些适应限制雄性接触病原体，并限制病原体在群体内部和群体之间的雄性传播。为解释仅存在雌性工蜂现象而提出的亲缘不对称假说并未做出这些预测。我们回顾了昆虫中基因对寄生虫抗性影响的相关证据，并总结了与单倍体易感性假说相关的实证证据。
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