Giemsa-stained meiotic cells of Leptodactylus. A. metaphase I of L. podicipinus, with 11 bivalents; B. metaphase I of L. pentadactylus, with five bivalents and a ring-chain formed by 12 chromosomes; C. metaphases II of L. pentadactylus, showing 11 chromosomes, tentatively identified in each cell; D. metaphase I of Leptodactylus sp. (aff. podicipinus), with 10 bivalents; E. metaphase I of L. marmoratus, with 12 bivalents. In C, the letters a, b, c, d, e, and f correspond to the rearranged chromosomes. Bar = 10 μm.
Gazoni et al. BMC Genetics 2012 13:109 doi:10.1186/1471-2156-13-109