| taxon composition and genetic variation of water frogs in the mid-rhône floodplain. | natural hemiclonal hybrid lineages of water frogs reproduce by hybridogenesis, excluding one parental genome in the germ line and mating with the coexisting same parental species. two such sexual host-hybridogen systems occur in the rhône valley: the l-e system in the north, the p-g system in the south. although these hybridogenetic complexes may overlap along the rhône river, there is no evidence for a contact zone in our samples: only rana ridibunda and r. esculenta were identified using prote ... | 1997 | 9377180 |