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Charles University in Prague (2014)

Phylogeny of selected genera of geckos in the Mediterranean and adjacent regions

Červenka Jan

Titre : Phylogeny of selected genera of geckos in the Mediterranean and adjacent regions

Auteur : Červenka Jan

Université de soutenance  : Charles University in Prague

Grade : Doctor of Philosophy (PhD) 2014

Résumé
This Ph.D. thesis is composed of three published articles and one manuscript, and is focused on the phylogenetic relationships of selected species of geckos from the Mediterranean and surrounding areas. The group of geckos of interest shares the common characteristic of an absence of adhesive lamellas on their toes. Historically, it was assumed that these species were closely related. Molecular-phylogenetic approaches were used in order to reveal the phylogenetic relationships within this group, especially using the sequential data from mitochondrial genes. Morphological characteristics commonly used in lizards were studied in connection with the ecology of the group. This thesis provides the first more detailed view of the phylogeny of the studied species. The results show that the genus Cyrtopodion, previously considered as monophyletic, in fact is not monophyletic as the genera Bunopus and Agamura represent its inner groups. Mediodactylus, the subgenus of Cyrtopodion, forms monophylum but is not closely related to the other members of the genus and so was reclassified as the independent genus. The enigmatic and yet so far very poorly studied genus Carinatogecko was discovered to be the inner group of the genus Mediodactylus. The recently described species Cyrtopodion dehakroense was therefore transferred to the genus Mediodactylus based on ecological and morphological data. Phylogenetic analysis of sequence data enhanced by ecological niche modelling supported the specific status of the two recognized subspecies of Bunopus spatalurus.

Mots clés : Agamura, Bunopus, Carinatogecko, Cyrtopodion, lizards, Mediodactylus, mtDNA, naked-toed geckos, nDNA, phylogeny, taxonomy

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