Karyological study of Ololygon tripui (Lourenco, Nascimento and Pires, 2009), (Anura, Hylidae) with comments on chromosomal traits among populations.

ABSTRACT: To increase the number of cytogenetic characters used in Ololygon tripui systematics, we applied some cytogenetic techniques such as Giemsa, C- and NOR-banding, and fluorescence in situ hybridization (FISH) with 18S rDNA and repetitive microsatellite DNA probes to the study of four populations from Minas Gerais State (southeastern Brazil). All populations showed 2n = 24 and FN = 48, and chromosomal formula 8m + 10sm + 6st. Nucleolar organizing regions (NORs) were located on chromosome pair 6 in all populations, although in the Tripuí locality additional markings were observed on one homologue of chromosome pair 3. These patterns were partially congruent with results obtained using the 18S rDNA FISH probe. The microsatellites repetitive DNA (GA)₁₅ and (CAT)_10</

SUBMITTER: Peixoto MA 

PROVIDER: S-EPMC5240505 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature