Journal
COMPARATIVE CYTOGENETICS
Volume 9, Issue 2, Pages 227-236Publisher
PENSOFT PUBLISHERS
DOI: 10.3897/CompCytogen.v9i2.4593
Keywords
Amphibians; chromosomes; FISH; heterochromatin
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Funding
- CAPES
- CNPq
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Scinax Wagler, 1830 is a species-rich genus of amphibians with relatively few detailed chromosomal reports. In this work, cytogenetic analyses of Scinax auratus (Wied-Neuwied, 1821) and Scinax eurydice (Bokermann, 1968) were carried out based on conventional (Giemsa staining, Ag-NOR and C-banding) and cytomolecular (base-specific fluorochrome staining and fluorescence in situ hybridization - FISH of ribosomal probes) techniques. Both species shared the same karyotype, location of active nucleolar organizer regions on pair 11 and GC-rich heterochromatin, as reported for most species in S. ruber clade. Interpopulation chromosomal variation was observed in S. eurydice, indicating the occurrence of cryptic species. The mapping of 18S ribosomal genes by FISH is reported for the first time in both species.
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