The seven-chromosome karyotype of the African frog Arthroleptis, a probable derivative of the thirteen-chromosome karyotype of Rana (Ranidae, Anura).
D000818:Animals; D001001:Anura; D005075:Biological Evolution; D002875:Chromosomes; D014644:Genetic Variation; D007621:Karyotyping; D008297:Male; D011898:Ranidae; D013093:Spermatogonia / Q000648:ultrastructure