Karyological and flow cytometric evidence of triploid specimens in Bufo viridis (Amphibia Anura)

Karyological and flow cytometric (FCM) analyses were performed on a group of 14 green toads of the Bufo viridis species from seven Eurasian populations. Both approaches gave concordant results concerning the DNA ploidy level. All the populations examined were represented exclusively by diploid or te...

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Bibliographic Details
Published in:European journal of histochemistry 2002-01, Vol.46 (2), p.159-164
Main Authors: Cavallo, D, De Vita, R, Eleuteri, P, Borkin, L, Ermechenko, V, Odiema, G, Balletto, E
Format: Article
Language:English
Subjects:
Animals
Bufonidae - genetics
Cell Nucleus - genetics
Chromosome Banding
DNA - analysis
Female
Flow Cytometry - methods
Genetic Variation
Genome
Karyometry
Karyotyping
Male
Polyploidy
Reproducibility of Results
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Summary:Karyological and flow cytometric (FCM) analyses were performed on a group of 14 green toads of the Bufo viridis species from seven Eurasian populations. Both approaches gave concordant results concerning the DNA ploidy level. All the populations examined were represented exclusively by diploid or tetraploid specimens, except one, where triploids were found. Results evidenced an interpopulation variability in DNA content against the same ploidy level, as well as an unusually high number of triploids in a particular reproductive place. The origin of polyploidy and the presence and persistence of a high number of triploids in a particular population are discussed.
ISSN:1121-760X
2038-8306
DOI:10.4081/1665