Constitutive heterochromatin represents a substantial portion of the eukaryote genome, and
it is mainly composed of tandemly repeated DNA sequences, such as satellite DNAs, which …

In freshwater Neotropical fishes, supernumerary chromosomes or B chromosomes have
been found in 61 species so far, distributed in 16 families of seven different orders and in …

B or supernumerary chromosomes are dispensable elements that are widely present in
numerous eukaryotes. Due to their non-recombining nature, there is an evident tendency for …

Prochilodus lineatus, an abundant species in the Mogi-Guaçu river basin, represents a large
part of the region's fishing potential. Karyotypic analyses based on classic cytogenetic …

B chromosomes in Prochilodus lineatus, a migratory neotropical fish, were analyzed in a
comparative study among populations from the Dourada lagoon (State of Paraná, Brazil) …

We used differential staining techniques (BSG, GTG, AgNO3, DAPI and CMA3 banding) and
fluorescent in situ hybridization (FISH) with 5S and 18S probes to investigated the karyotypic …

The Moenkhausia sanctaefilomenae specimens showed a karyotype consisting of 2 n= 50
chromosomes with 12 metacentrics, 36 submetacentrics and two subtelocentrics. In addition …

Nucleolar organizer regions (NORs) have been extensively studied in fish through the
classic cytogenetic technique of staining by silver nitrate. However, the inconvenience of this …

Cytogenetical analyses based on conventional and differential staining were performed for
the first time on five species of the Brazilian lizard genus Enyalius: E. bibronii, E. bilineatus …

Fish of the family Prochilodontidae are considered one of the most important components of
commercial and subsistence fishery in freshwater environments in South America. This …