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Molecular phylogenetics and taxonomy of leaf-toed geckos (Phyllodactylidae: Phyllodactylus) inhabiting the peninsula of Baja California
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Evolutionary Biology.
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2009 (English)In: Zootaxa, ISSN 1175-5326, E-ISSN 1175-5334, no 2027, 28-42 p.Article in journal (Refereed) Published
Abstract [en]

Herein we assess the phylogenetic relationships and taxonomy of geckos of the genus Phyllodactylus inhabiting the peninsula of Baja California, Mexico using five mitochondrial and two nuclear genes. Phylogenetic analysis using maximum parsimony (MP) and Bayesian inference (BI) recovered three distinct peninsular clades with high statistical support. Sequence divergence estimates between peninsular taxa approached 13%. Two of the species, P. unctus and P. xanti are Cape Region endemics, whereas P. nocticolus is widespread throughout much of the peninsula and extreme southern California. Monophyly of the peninsular taxa was strongly supported. In the MP analysis, P. unctus rooted at the base of the peninsular clade, resolving P. xanti and P. nocticolus as sister taxa. Conversely, BI placed P. nocticolus and P. unctus as sister taxa. These data provide further evidence for a trans-peninsular seaway near the Isthmus of La Paz, severing the Cape Region from the rest of the peninsula. The analysis also supports the validity of P. nocticolus as a distinct species and suggests a single invasion to the peninsula from mainland Mexico, presumably during tectonic activity during the Miocene.

Place, publisher, year, edition, pages
2009. no 2027, 28-42 p.
Keyword [en]
biogeography, cryptic species, Gekkota, phylogeny, speciation
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-129931ISI: 000263879100002OAI: oai:DiVA.org:uu-129931DiVA: diva2:345598
Available from: 2010-08-26 Created: 2010-08-26 Last updated: 2017-12-12Bibliographically approved

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