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首页> 外文期刊>Infection, Genetics and Evolution: Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases >Genetic characterization of flea-derived Bartonella species from native animals in Australia suggests host-parasite co-evolution
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Genetic characterization of flea-derived Bartonella species from native animals in Australia suggests host-parasite co-evolution

机译：澳大利亚本地动物的跳蚤巴尔通体物种的遗传特征表明宿主-寄生虫共同进化

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摘要

Fleas are important arthropod vectors for a variety of diseases in veterinary and human medicine, and bacteria belonging to the genus Bartonella are among the organisms most commonly transmitted by these ectoparasites. Recently, a number of novel Bartonella species and novel species candidates have been reported in marsupial fleas in Australia. In the present study the genetic diversity of marsupial fleas was investigated; 10 species of fleas were collected from seven different marsupial and placental mammal hosts in Western Australia including woylies (Bettongia penicillata), western barred bandicoots (Perameles bougainville), mardos (Antechinus flavipes), bush rats (Rattus fuscipes), red foxes (Vulpes vulpes), feral cats (Felis catus) and rabbits (Oryctolagus cuniculus). PCR and sequence analysis of the cytochrome oxidase subunit I (COI) and the 18S rRNA genes from these fleas was performed. Concatenated phylogenetic analysis of the COI and 18S rRNA genes revealed a close genetic relationship between marsupial fleas, with Pygiopsylla hilli from woylies, Pygiopsylla tunneyi from western barred bandicoots and Acanthopsylla jordani from mardos, forming a separate cluster from fleas collected from the placental mammals in the same geographical area. The clustering of Bartonella species with their marsupial flea hosts suggests co-evolution of marsupial hosts, marsupial fleas and Bartonella species in Australia. (C) 2011 Elsevier B.V. All rights reserved.
机译：跳蚤是兽医和人类医学中各种疾病的重要节肢动物载体，属于巴尔通体属的细菌是这些外寄生虫最常传播的生物。最近，在澳大利亚的有袋跳蚤中已经报道了许多新颖的巴尔通体物种和候选物种。在本研究中，研究了有袋跳蚤的遗传多样性。从西澳大利亚的7种不同有袋动物和胎盘哺乳动物寄主中采集了10种跳蚤，包括寄主（Bettongia penicillata），西条斑band（Perameles bougainville），黑斑羚（Antechinus flavipes），丛林鼠（Rattus fuscipes），赤狐（Vulpes vulpes） ），野猫（Felis catus）和兔子（Oryctolagus cuniculus）。对来自这些跳蚤的细胞色素氧化酶亚基I（COI）和18S rRNA基因进行了PCR和序列分析。对COI和18S rRNA基因的系统发育分析表明，有袋跳蚤与卵状跳蚤之间有密切的遗传关系，来自卵状跳蚤的Pygiopsylla hilli，来自西部带状斑纹的袋鼠的Pygiopsylla tunneyi和来自马尔多斯的Acanthopsylla jordani，与从胎盘哺乳动物的跳蚤中分离出一个簇相同的地理区域。 Bartonella物种与其有袋跳蚤宿主的聚集表明澳大利亚有袋宿主，有袋跳蚤和Bartonella物种的共同进化。 （C）2011 Elsevier B.V.保留所有权利。

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