Temperature effects on parasite prevalence in a natural hybrid complex
Temperature effects on parasite prevalence in a natural hybrid complex
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温度对自然杂交复合体中寄生虫流行的影响
DOI：
10.1098/rsbl.2010.0616
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发表时间：
2011
期刊：
影响因子：
3.3
通讯作者：
J. Wolinska
中科院分区：
文献类型：
--
作者：
C. N. Schoebel;C. Tellenbach;P. Spaak;J. Wolinska
宿主易感性和寄生虫感染性通常都有遗传基础，因此可以通过共同进化来塑造。然而，这些性状通常对环境变化敏感，导致基因型与环境的相互作用。我们测试了暴露于原生动物寄生虫 Caullerya mesnili 的长斯溞杂种复合体中温度对宿主-寄生虫遗传特异性的影响。低温下感染率较高。此外，观察到宿主克隆之间存在显着差异，但宿主分类单元之间没有显着差异，并且观察到宿主基因型与温度的相互作用。
Both host susceptibility and parasite infectivity commonly have a genetic basis, and can therefore be shaped by coevolution. However, these traits are often sensitive to environmental variation, resulting in genotype-by-environment interactions. We tested the influence of temperature on host–parasite genetic specificity in the Daphnia longispina hybrid complex, exposed to the protozoan parasite Caullerya mesnili. Infection rates were higher at low temperature. Furthermore, significant differences between host clones, but not between host taxa, and a host genotype-by-temperature interaction were observed.