Chromosome Uniformity in Lacertidae: New Data on four Italian Species

in Amphibia-Reptilia
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Abstract

The chromosome complements of Podarcis filfolensis, P. tiliguerta, P. wagleriana and Archaeolacerta bedriagae were analyzed in bone marrow somatic mitoses as well as in meiotic diakinesis. All four species are characterized by the typical lacertid karyotype consisting of 38 chromosomes (36 acrocentric macrochromosomes plus 2 microchromosomes). Adaptive stability of karyotypes, as a result ofa canalization process of chromosomal evolution, and absence of complex social behaviour promoting population subdivision and inbreeding, are the evolutionary factors presumably correlated with the remarkable conservativeness of karyotype observed within the family Lacertidae.

Chromosome Uniformity in Lacertidae: New Data on four Italian Species

in Amphibia-Reptilia

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