Phylogenetic relationships of southern African geckos in the Pachydactylus group (Squamata: Gekkonidae)
- 1 December 2005
- journal article
- research article
- Published by Informa UK Limited in African Journal of Herpetology
- Vol. 54 (2), 105-129
- https://doi.org/10.1080/21564574.2005.9635525
Abstract
Pachydactylus and its close relatives (Chondrodactylus, Colopus, Palmatogecko) constitute the most species‐rich component of the southern African gekkonid fauna. We conducted a phylogenetic analysis of mitochondrial (cytb, 12S rRNA, 16S rRNA) and nuclear (RAG‐1) gene sequences for these geckos. Pachydactylus tetensis + P. tuberculosus form the sister group to the remaining taxa, and we resurrect the genus Elasmodactylus to accommodate these two basal species. The P. bibronii group is sister to Chondrodactylus angulifer, and is here transferred to the latter genus. Pachydactylus kochii is the sister species of Colopus wahlbergii and is transferred to that genus. All remaining taxa ‐ including the P. namaquensis group, the ‘small‐bodied’ Pachydactylus, and Palmatogecko ‐ form a well‐supported monophyletic assemblage recognised herein as Pachydactylus sensu stricto. The major clades within Pachydactylus s.s. include the capensis, serval/weberi, rangei, rugosus, and geitje groups, as well as a diverse “northwestern group” that occurs chiefly in northern Namibia and southern Angola. The fine‐scale regional endemism apparent among members of the southern African Pachydactylus Group probably reflects an interplay between substrate specialisation and vicariant events (both geologically and climatically associated) since at least the Miocene. Explicit phylogenies for Pachydactylus, cordylid lizards, scorpions, and other taxa provide a basis for the first fine‐scaled analytical biogeographic analysis of southern Africa.Keywords
This publication has 52 references indexed in Scilit:
- Molecular data suggest that melanistic ectotherms at the south‐western tip of Africa are the products of Miocene climatic events: evidence from cordylid lizardsJournal of Zoology, 2004
- Shifting sands and shifty lizards: molecular phylogeny and biogeography of African flat lizards (Platysaurus)Molecular Phylogenetics and Evolution, 2004
- Developing regional and species-level assessments of climate change impacts on biodiversity in the Cape Floristic RegionBiological Conservation, 2003
- On the systematic status of the desert plated lizard (Angolosaurus skoogi): phylogenetic inference from DNA sequence analysis of the African GerrhosauridaeBiological Journal of the Linnean Society, 2003
- Systematics and biogeography of the family Scorpionidae (Chelicerata : Scorpiones), with a discussion on phylogenetic methodsInvertebrate Systematics, 2003
- Phylogenetic Relationships of the Large-Bodied Members of the African Lizard Genus Pachydactylus (Reptilia: Gekkonidae)Ichthyology & Herpetology, 2002
- Multiple Comparisons of Log-Likelihoods with Applications to Phylogenetic InferenceMolecular Biology and Evolution, 1999
- Evolutionary scenarios in thePachydactylusGroup geckos of southern Africa: new hypothesesAfrican Journal of Herpetology, 1999
- Phylogenetic systematics of the day geckos, genus, Rhoptropus (Reptilia: Gekkonidae), of south‐western AfricaJournal of Zoology, 1996
- Relationships of the South African lizards assigned toAporosaura, MerolesandPedioplanis(Reptilia: Lacertidae)Journal of Natural History, 1991