HOST-PARASITE INTERACTIONS - INFECTION OF COMMON CLONES IN NATURAL-POPULATIONS OF A FRESH-WATER SNAIL (POTAMOPYRGUS-ANTIPODARUM)
HOST-PARASITE INTERACTIONS - INFECTION OF COMMON CLONES IN NATURAL-POPULATIONS OF A FRESH-WATER SNAIL (POTAMOPYRGUS-ANTIPODARUM)
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DOI：
10.1098/rspb.1995.0065
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发表时间：
1995-04-22
影响因子：
4.7
通讯作者：
LIVELY, CM
中科院分区：
文献类型：
--
作者：
DYBDAHL, MF;LIVELY, CM
维持异花受精的红皇后假说要求寄生虫进化成不成比例地感染当地最常见的宿主基因型，并阻止它们的传播。在这里，我们测试的想法，双殖吸虫是非随机感染的常见的克隆基因型的淡水蜗牛Potamopyrgus antipodarum的四个种群。结果表明，最常见的克隆在一个群体中被显著过度感染，在另外两个群体中被显著感染，并且在第四群体中被优势去势寄生虫成比例感染。我们表明，在系统中的时滞的期望，这些结果是一致的红皇后理论下的期望。
The Red Queen hypothesis for the maintenance of cross-fertilization requires that parasites evolve to infect disproportionately the most common of local host genotypes and prevent their spread. Here we test the idea that digenetic trematodes are non-randomly infecting the common clonal genotypes in four populations of the freshwater snail Potamopyrgus antipodarum. The results show that the most common clone was significantly over-infected in one population, significantly under-infected in two other populations, and proportionately infected in the fourth population by the predominant castrating parasite. We show that, given the expectation of time lags in the system, these results are consistent with expectation under the Red Queen theory.