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Abstract
The taxonomy of Iberian and North African wall lizards (Podarcis sp.) has been controversial. Recently, morphological and mtDNA sequence data have provided new information on differentiation within these lacertids. To compare these results to those provided by nuclear markers, we investigated variation at 11 polymorphic protein loci using conventional electrophoresis and isoelectric focusing in 11 populations belonging to seven different mtDNA lineages. A total of 62 alleles were found. Populations belonging to the same mtDNA type presented high genetic similarity, whereas strong differentiation was observed between groups. These results are consistent with those previously obtained from morphological and mtDNA analysis and support the idea that Iberian and North African Podarcis are composed of several well-differentiated entities, some of which are already recognized as species, whereas others (belonging to the P. hispanica complex) clearly need taxonomic revision.
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