Publication details
Ovplyvňuje selektívna mortalita mieru introgresie mitochondriálnej DNA v hybridogenetickom komplexe vodných skokanov?
| Title in English | Has selective mortality impact on the rate of mitochondrial DNA introgression in a complex of hybridogenetic water frogs? |
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| Year of publication | 2015 |
| Type | Conference abstract |
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| Citation | |
| Description | Interspecies introgressive hybridization is a process known in plants and animals. Besides of introgression of nuclear DNA fragments introgression of the whole mitochondrial genome can sometimes occur, having potential impact on fitness of hybrids. The aim of this work was to find out the rate of mitochondrial DNA (mtDNA) introgression in the complex of water frogs, which include two parental species Pelophylax ridibundus and P. lessonae and their hybridogenetic hybrid P. esculentus. We compared the rate of introgression between larval and adult stages because we expected higher mortality rate of introgressed individuals during metamorphosis. In total 798 adult frogs and 168 larvae were analysed. All P. lessonae individuals carried their own mitogenome. Six percent of P. ridibundus and 85% of hybrids carried introgressed lessonae mtDNA. Despite we identified higher introgression rate of lessonae mtDNA in P. ridibundus tadpoles than in adults, this result was not statistically significant. The question if selective mortality can influence mtDNA introgression rate remains open. |