Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Phylogeographic inferences from the mtDNA variation of the three-toed skink, Chalcides chalcides (Reptilia: Scincidae)
Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 308, No. 3, Year 2007
Notification
URL copied to clipboard!
Description
Genetic diversity was analyzed in Chalcides chalcides populations from peninsular Italy, Sardinia, Sicily and Tunisia by sequencing 400 bp at the 5′ end of the mitochondrial gene encoding cytochrome b (cyt b) and by restriction fragment length polymorphism (RFLP) analysis of two mitochondrial DNA segments (ND-1/2 and ND-3/4). The results of the phylogenetic analysis highlighted the presence of three main clades corresponding with three of the four main geographical areas (Tunisia, Sicily and the Italian peninsula), while Sardinia proved to be closely related to Tunisian haplotypes suggesting a colonization of this island from North Africa by human agency in historical times. On the contrary, the splitting times estimated on the basis of cyt b sequence data seem to indicate a more ancient colonization of Sicily and the Italian Peninsula, as a consequence of tectonic and climatic events that affected the Mediterranean Basin during the Pleistocene. Finally, the analysis of the genetic variability of C. chalcides populations showed a remarkable genetic homogeneity in Italian populations when compared to the Tunisian ones. This condition could be explained by a rapid post-glacial expansion from refugiai populations that implied serial bottlenecking with progressive loss of haplotypes, resulting in a low genetic diversity in the populations inhabiting the more recently colonized areas. © 2007 Wiley-Liss, Inc.
Authors & Co-Authors
Giovannotti, Massimo
Italy, Ancona
Università Politecnica Delle Marche
Nisi-Cerioni, Paola
Italy, Ancona
Università Politecnica Delle Marche
Kalboussi, Mohsen
Tunisia, Tunis
Université de Tunis
Aprea, Gennaro
Italy, Naples
Università Degli Studi Di Napoli Federico Ii
Caputo Barucchi, Vincenzo
Italy, Ancona
Università Politecnica Delle Marche
Statistics
Citations: 22
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1002/jez.b.21149
ISSN:
15525007
e-ISSN:
15525015
Research Areas
Environmental
Genetics And Genomics
Study Locations
Multi-countries
Tunisia