Wing geometry as a tool for studying the Lutzomyia longipalpis (Diptera: Psychodidae) complex
Wing geometry as a tool for studying the Lutzomyia longipalpis (Diptera: Psychodidae) complex
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DOI：
10.1590/s0074-02762001000800011
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发表时间：
2001-11-01
影响因子：
2.8
通讯作者：
Dujardin, JP
中科院分区：
文献类型：
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作者：
De la Riva, J;Le Pont, F;Dujardin, JP
Toro Toro (T)和Yungas (Y)被描述为玻利维亚Lutzomyia longipalpis （Lutz & Neiva, 1912）群的遗传分化良好的种群。在这里，我们使用几何形态计量学来比较来自这些种群和新种群（玻利维亚和尼加拉瓜）的样本，它们代表了遥远的地理起源、定性形态变异（“单点”或“两点”表型）、生态上不同的性状（家养种群和森林种群），以及可能不同的流行病学作用（传播或不传播恰加什利什曼原虫）。尼加拉瓜(N) （Somotillo）样本为“单点”表型，可能是一种家畜周媒介。玻利维亚的Y型样本也是“单点”表型，并被证明是内脏利什曼病（VL）的家庭周围媒介。剩下的三个样本是森林型，“两点”表型。其中两个（Uyuni和T）是在玻利维亚高地收集的，那里从未报告过VL。最后一个病例（Robore，右）来自玻利维亚低地，那里零星报告了人间VL病例。通过几何形态测量技术将度量变化分解为大小和形状，表明存在两类（N/Y/R和U/T）。几个论点表明，这样的细分鲁。长掌肌可能对应于不同的进化单位。
Toro Toro (T) and Yungas (Y) have been described as genetically well differentiated populations of the Lutzomyia longipalpis (Lutz & Neiva, 1912) complex in Bolivia. Here we use geometric morphometries to compare samples from these populations and new populations (Bolivia and Nicaragua), representing distant geographical origins, qualitative morphological variation ("one-spot " or "two-spots " phenotypes), ecologically distinct traits (peridomestic and silvatic populations), and possibly different epidemiological roles (transmitting or nor transmitting Leishmania chagasi). The Nicaragua (N) (Somotillo) sample was "one-spot " phenotype and a possible peridomestic vector. The Bolivian sample of the Y was also "one-spot " phenotype and a demonstrated peridomestic vector of visceral leishmaniasis (VL). The three remaining samples were silvatic, "two-spots "phenotypes. Two of them (Uyuni and T) were collected in the highlands of Bolivian where VL never has been reported. The last one (Robore, R) came from the lowlands of Bolivia, where human cases of VL are sporadically reported. The decomposition of metric variation into size and shape by geometric morphometric techniques suggests the existence of two groups (N/Y/R, and U/T). Several arguments indicate that such subdivision of Lu. longipalpis could correspond to different evolutionary units.