title: Triploid F2 progeny of water frogs (Rana esculenta complex).
mesh_terms: D000818:Animals; D001001:Anura; D003433:Crosses, Genetic; D005260:Female; D008297:Male; D010641:Phenotype; D011123:Polyploidy; D011893:Rana esculenta / Q000235:genetics*