Summary
Investigations of the green frogs from western Europe for electrophoretic variations at 4 enzyme loci demonstrated a new form which must be considered as a hybrid betweenRana ridibunda andR. perezi. Biochemical evidence supports the hypothesis that its reproduction is hybridogenetic, as it is forR. esculenta.
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Graf, J.D., Karch, F. & Moreillon, M.C. Biochemical variation in theRana esculenta complex: A new hybrid form related toRana perezi andRana ridibunda. Experientia 33, 1582–1584 (1977). https://doi.org/10.1007/BF01934010
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DOI: https://doi.org/10.1007/BF01934010