Post-graduate theses
Current Record: 4616 of 6695
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Identifier |
000407879 |
Title |
Φυλογένεση και φυλογεωγραφία των βατράχων του γένους Rana στον Ελληνικό χώρο |
Alternative Title |
Phylogeny and phylogeography of frogs of the genus Rana in the region of Greece - a first assessment |
Author
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Γκόντας, Ιωάννης Ν.
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Thesis advisor
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Πουλακάκης, Νικόλαος
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Reviewer
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Μυλωνάς, Μωυσής
Λαδουκάκης, Εμμανουήλ
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Abstract |
The frogs of the genus Rana (Linnaeus, 1758) are widely used as a model organism in studies of
physiology, development, behavior, ecology, genetics and evolution. They constitute a key group
for phylogeographic studies by revealing and verifying paleogeographic events, because of their
weakness – like the most of amphibians - to disperse through sea barriers. Rana constitute a
numerous taxon with more than 250 different species distributed almost all over the planet. Three
species of the genus are distributed in continental Greece and the surrounding area of south Balkan
Peninsula which are also studied here: Rana graeca is distributed only in this region, as well as R.
dalmatina and R. temporaria has a broader distribution in European continent. In this study, 88
specimens were used, covering a big part of the Greek distribution of these three species. Two
mitochondrial genes (16S and COI) and one nuclear (BDNF) gene were used as markers in order to
examine in a first level the phylogenetic relationships between the different populations of the genus
in the region of study. After the analysis, three monophyletic groups appeared, corresponding to the
three species of genus. Furthermore, results of chronophylogenetic tree analysis indicate that the
three lineages split during the Messinian, and intraspecific differentiation started during upper
Pleistocene. Although the results can give a first assessment of the relationships inside the genus in
this region, more samples as well as more genetic locus are necessary for a more co.mplete
overview
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Language |
Greek |
Subject |
16S rRNA |
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Amphibians |
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BDNF |
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Balkan Peninsula |
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COI |
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Rana dalmatina |
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Rana graeca |
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Rana temporaria |
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Αμφίβια |
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Βαλκανική χερσόνησος |
Issue date |
2017-03-17 |
Collection
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School/Department--School of Sciences and Engineering--Department of Biology--Post-graduate theses
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Type of Work--Post-graduate theses
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Permanent Link |
https://elocus.lib.uoc.gr//dlib/d/b/4/metadata-dlib-1490948310-929080-23181.tkl
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Views |
332 |