Rhipicephalus sanguineus (Acari: Ixodidae) species complex: morphometric and ultrastructural analyses
Rhipicephalus sanguineus (Acari: Ixodidae) species complex: morphometric and ultrastructural analyses
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DOI：
10.1007/s10493-016-0095-5
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发表时间：
2016-12-01
影响因子：
2.2
通讯作者：
Rosa, Fernanda
中科院分区：
文献类型：
--
作者：
Coimbra-Dores, Maria Joao;Nunes, Telmo;Rosa, Fernanda
虽然已经对血鼻头蝇（Latreille）种群进行了一些研究，但其分类分类仍然很混乱。血蜱（Rhipicephalus sanguineus），也被称为“（棕色狗蜱）”，是一种三宿主蜱，寄生于许多脊椎动物，包括偶尔的人类宿主。它呈全球分布，是人畜共患病的媒介，具有公认的公共卫生重要性。在西欧，R. turanicus （Pomerantsev）具有许多表型特征，并且与R. sanguineus有密切的遗传关系。此外，由于这些物种是同域的，它们很容易被错误识别。然而，通过彻底的形态特征分析，有可能区分这两个物种，特别是借助于扫描电子显微镜。本研究采用立体和扫描电镜分析，结合形态计量学分析，以帮助澄清该物种复合体的分类地位。为此，研究人员从伊比利亚半岛中西部的狗身上收集了类似于血红种的标本。根据分类关键特征进行鉴定。所获得的结果使作者同意在类似血尾猿的伊比利亚种群中发现了很大的形态变异。尽管如此，通过形态分析，特别是参考标本，turanicus很容易被识别，并且表明它存在于葡萄牙。
Although some studies have already been performed on Rhipicephalus sanguineus (Latreille) populations, there is still much disarray around its taxonomic classification. Rhipicephalus sanguineus, which is also known as " (brown dog tick) is a three-host tick that parasitizes many vertebrates, including occasional human hosts. It presents a worldwide distribution and is a vector of zoonosis with acknowledged public health importance. In Western Europe, R. turanicus (Pomerantsev) share many phenotypic features and is genetically closely related to R. sanguineus. Additionally, as these species are sympatric, they can be easily misidentified. However, by means of a thorough morphological traits analysis, it is possible to distinguish both species, especially resorting to scanning electron microscopy. This study was conducted using stereoscopic and SEM analyses, both associated with morphometric analysis, in order to help clarify the taxonomic status of this species complex. For that purpose, specimens resembling R. sanguineus were collected from dogs of the Midwestern Iberian Peninsula. Identification was performed based on taxonomical key characteristics. The obtained results allowed the authors to agree that a great morphological variability is found within R. sanguineus-like Iberian populations. Nevertheless, R. turanicus is easily identified by morphologic analysis, especially using reference specimens, and its presence in Portugal is suggested.