Cytology and Genetics ,
vol. ,
no. , ,
doi: https://www.doi.org/
The comparative analysis of hybrid populations of toads Bombina bombina and B. variegata from Ukraine and Croatia revealed the essential differences in their genetic structure. The population composition and the direction of genetic introgression are determined initially by the ecological factors (the locality type, the country relief). The clear predominance of the red-bellied toad Bombina bombina was found in two cases: 1) in the lowland populations and 2) in the big samples. The second parental species, B. variegata, predominates in the highlands and in the small samples, respectively.
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