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首页> 外文期刊>Veterinary Parasitology >Molecular data reveal cryptic speciation and host specificity in Toxascaris leonina (Nematoda: Ascarididae)
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Molecular data reveal cryptic speciation and host specificity in Toxascaris leonina (Nematoda: Ascarididae)

机译:分子数据显示Toxascaris Leonina(奈戴达:蛔虫病)的神秘形态和宿主特异性

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摘要

Toxascaris leonina (Ascarididae) is a cosmopolitan and polyxenical parasite whose host are canids and felids. To date, molecular phylogenetic studies included toxascarid representatives collected only from dogs or felids, therefore the intra-species differences between T. leonina collected from different host species has not been noticed. In this paper, we test the hypothesis of cryptic speciation in the T. leonina complex based on extended sequence data (ITS1, nad1, cox1) and individuals collected from dogs, felids and foxes. Phylogenetic analysis clustered T. leonina representatives into three well-supported clades depending on their host species, i.e. dogs and wolves, wild felids and foxes. Both genetic distances and the barcoding-gap analysis strongly support the species status of populations inhabiting different hosts. The results suggest additional genetic separation in felids. However, to determine the actual size of the Toxascaris complex, it would be necessary to analyse individuals collected from other canid and felid Toxascaris leonine host species.
机译:Toxascaris Leonina(Ascarididae)是一种过多的和多奇寄生虫,其宿主是CAILID和FELID。迄今为止,仅由狗或氟西米收集的葡萄球发育研究包括从不同宿主物种收集的T.Leonina之间的物种内差异尚未被注意到。在本文中,我们基于延长序列数据(ITS1,NAD1,COX1)和收集的狗,FELID和狐狸收集的个体来测试T.Leonina复合物的神秘形态的假设。根据其宿主物种,即狗和狼,野生Felids和狐狸,Phylo到期分析聚集成三种良好的良好的枝条。遗传距离和条形码间隙分析都强烈支持居住不同宿主的人群物种状况。结果表明FELID中的额外遗传分离。然而,为了确定Toxascaris复合物的实际规模,有必要分析从其他CAIL和FELID Toxascaris leonine宿主物种中收集的个体。

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