The taxonomic status of genetically divergent populations of Lutzomyia longipalpis (Diptera: Psychodidae) based on the distribution of mitochondrial and isozyme variation
The taxonomic status of genetically divergent populations of Lutzomyia longipalpis (Diptera: Psychodidae) based on the distribution of mitochondrial and isozyme variation
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DOI：
10.1603/0022-2585-40.5.615
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发表时间：
2003-09-01
影响因子：
2.1
通讯作者：
Lanzaro, GC
中科院分区：
文献类型：
--
作者：
Arrivillaga, J;Mutebi, JP;Lanzaro, GC
沙蝇，Lutzomyia longipalpis （Lutz & Neiva）被认为是一个隐蔽物种的复合体；然而，目前对于该建筑群的物种数量及其地理分布尚无共识。我们利用线粒体基因组中的7个同工酶位点和基因对整个物种范围内的31个种群进行了系统发育分析。对这两组独立的标记的分析基本上是一致的，并揭示了四个不同的分支，支持四个物种的存在。这四个支系具有明显的地理分布范围：(1)巴西（种A = Lu）。(2)拉兰（B种）；(3)顺安第斯（C种）和(4)跨安第斯（D种）。顺安第斯分支可以进一步细分为两组，一组在哥伦比亚，另一组在委内瑞拉西北部，但它们的分类地位仍未解决。识谓陆。长掌虫是一种复杂的物种，可能最终揭示了新大陆内脏利什曼病流行病学中的异常现象。
The sand fly, Lutzomyia longipalpis (Lutz & Neiva) reputedly is a complex of cryptic species; however, there is currently no consensus as to the number of species in the complex or their geographic distributions. We conducted phylogenetic analyses of 31 populations from throughout the species range, using seven isozyme loci and genes in the mitochondrial genome. Analyses of these two independent sets of markers were largely concordant and revealed four distinct clades that support the existence of four species. The four clades have distinct geographic ranges: (1) Brazil (Species A = Lu. longipalpis sensu stricto), (2) Laran (Species B = Lu. pseudolongipalpis), (3) cis-Andean (Species C), and (4) trans-Andean (Species D). The cis-Andean clade may be subdivided further into two groups, one in Colombia and one in northwestern Venezuela, but their taxonomic status remains unresolved. Knowledge that Lu. longipalpis is a complex of species may ultimately shed light on anomalies in the, epidemiology of visceral leishmaniasis in the New World.