Molecular phylogeny and taxonomic revision of the sportive lemurs Lepilemur, PrimatesReportar como inadecuado

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BMC Evolutionary Biology

, 6:17

First Online: 23 February 2006Received: 26 July 2005Accepted: 23 February 2006


BackgroundThe number of species within the Malagasy genus Lepilemur and their phylogenetic relationships is disputed and controversial. In order to establish their evolutionary relationships, a comparative cytogenetic and molecular study was performed. We sequenced the complete mitochondrial cytochrome b gene 1140 bp from 68 individuals representing all eight sportive lemur species and most major populations, and compared the results with those obtained from cytogenetic studies derived from 99 specimens.

ResultsInterspecific genetic variation, diagnostic characters and significantly supported phylogenetic relationships were obtained from the mitochondrial sequence data and are in agreement with cytogenetic information. The results confirm the distinctiveness of Lepilemur ankaranensis, L. dorsalis, L. edwardsi, L. leucopus, L. microdon, L. mustelinus, L. ruficaudatus and L. septentrionalis on species level. Additionally, within L. ruficaudatus large genetic differences were observed among different geographic populations. L. dorsalis from Sahamalaza Peninsula and from the Ambanja-Nosy Be region are paraphyletic, with the latter forming a sister group to L. ankaranensis.

ConclusionOur results support the classification of the eight major sportive lemur taxa as independent species. Moreover, our data indicate further cryptic speciation events within L. ruficaudatus and L. dorsalis. Based on molecular data we propose to recognize the sportive lemur populations from north of the Tsiribihina River, south of the Betsiboka River, and from the Sahamalaza Peninsula, as distinct species.

Electronic supplementary materialThe online version of this article doi:10.1186-1471-2148-6-17 contains supplementary material, which is available to authorized users.

Nicole Andriaholinirina, Jean-Luc Fausser, Christian Roos, Dietmar Zinner, Urs Thalmann and Yves Rumpler contributed equally to this work.

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Autor: Nicole Andriaholinirina - Jean-Luc Fausser - Christian Roos - Dietmar Zinner - Urs Thalmann - Clément Rabarivola - Iary Ra


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