karyological evidence for diversification of italian slow worm populations (squamata, anguidae)
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ID: 219349
2013
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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.
| Reference Key |
mezzasalma2013comparativekaryological
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| Authors | ;Marcello Mezzasalma;Fabio Maria Guarino;Gennaro Aprea;Agnese Petraccioli;Angelica Crottini;Gaetano Odierna |
| Journal | Vascular health and risk management |
| Year | 2013 |
| DOI |
10.3897/compcytogen.v7i3.5398
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