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Title

Αποσαφήνιση των φυλογενετικών σχέσεων των ερπετών

Author

Καρδαμάκη, Αφροδίτη

Thesis advisor

Πουλακάκης, Νικόλαος

Abstract

Many studies have been performed for the clarification of reptiles’ taxonomy. Some of the basic unanswered so far questions are: what is the relationship between turtles, crocodiles and squamata, which groups are monophyletic and what are the intra- and inter - orders and suborders relationships of reptiles? Here, the phylogeny of 153 representatives out of 42 families of reptiles was examined by means of molecular markers (complete mitochondrial genome, 37 genes and three nuclear genes, RAG-1, RAG-2, c-mos). Based on the produced topology turtles belong to diapsid reptiles and Ophidia, Amphisbaenia, Anguimorpha and Gekkota recognized as monophyletic groups. On the contrary, the monophyly of Scincomorpha and Platynota is rejected. Moreover, it is supported the sister group relationship between Amphisbaenia and Lacertidae, and Ophidia and Acrodonta. Within Cryptodira the grouping of Chelydridae-Kinosternoidea is supported, whereas the monophyly of Trionychoidea is rejected. Finally, in Amphisbaenia, the clade of Amphisbaenidae/Trogonophiidae is more closely related to Blanidae. In total, the reptiles’ phylogeny presented here reveals the need of its systematic reevaluation and additional investigation to fully resolve the relationships among reptiles.

Language

Greek

Subject

Taxonomy

Mitochondrial markers

Molecular phylogeny

Nuclear markers

Μιτοχονδριακοί δείκτες

Μοριακή φυλογένεση

Πυρηνικοί δείκτες

Συστηματική

Issue date