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Karyological evidence for diversification of Italian slow worm populations (Squamata, Anguidae)
- Source :
- Comparative Cytogenetics, Vol 7, Iss 3, Pp 217-227 (2013)
- Publication Year :
- 2013
- Publisher :
- Pensoft Publishers, 2013.
-
Abstract
- A karyological analysis on six Italian populations the slow worm (Anguis veronensis Pollini, 1818) was performed and their genetic differentiation at the mitochondrial 16S rRNA gene fragment from a Spanish sample has been assessed. The Italian populations were karyologically uniform, all showing 2n= 44 elements, of which 20 were macrochromosomes and 24 microchromosomes. Comparison with literature data on Central European populations showed a difference on the morphology of the 10th chromosome pair: submetacentric in Italian populations and telocentric in the Central European ones. Our analysis showed the presence of a fragile site on chromosomes of this pair, suggesting its propensity for structural rearrangements. Analysis of the 16S rRNA gene fragment showed uniformity among Italian populations (uncorrected genetic distance of 0.4%), and their genetic distinctness from the Spanish individual (uncorrected genetic distance of 4.2%). Our results confirm the existence of two different Anguis fragilis Linnaeus, 1758 lineages, each one characterized by a different cytotype.
Details
- Language :
- English
- ISSN :
- 19930771 and 1993078X
- Volume :
- 7
- Issue :
- 3
- Database :
- Directory of Open Access Journals
- Journal :
- Comparative Cytogenetics
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.9f9f4fb26e424a9daf669c8b75089dd1
- Document Type :
- article
- Full Text :
- https://doi.org/10.3897/compcytogen.v7i3.5398