Mitotic chromosomes of Metynnis maculatus (Kner 1860)(Teleostei, Characiformes), a fish
species that occurs in the Amazon and Paraná-Paraguay river basins, were analyzed for the …

B chromosomes are apparently dispensable components found in the genomes of many
species that are mainly composed of repetitive DNA sequences. Among the numerous …

Karyotypes and chromosomal characteristics with focus on B chromosomes of 2 species of
the serrasalmid genus Metynnis, namely M. lippincottianus and M. maculatus, were …

Some of the largest B chromosomes so far discovered in vertebrates are present in the
cyprinid fish Alburnus alburnus. Previous cytogenetic analyses revealed a diploid …

Cytogenetic studies were carried out in the fish, Hoplias malabaricus, from the Parque
Florestal do Rio Doce (Brazil). This population is characterized by 2n= 42 chromosomes for …

B chromosomes are dispensable genomic elements found in different groups of animals and
plants. In the present study, a whole chromosome probe was generated from a specific …

The anostomid fish have a very similar karyotype, consisting of 54 biarmed chromosomes.
Variations in the location of NORs, heterochromatin, and sex chromosomes have been …

B Chromosomes are frequent in the subfamily Tetragonopterinae with different
characteristics related to number, size, morphology and distribution. Macro B chromosomes …

Chromosome painting with DNA probes obtained from supernumerary (B) and sex
chromosomes in three species of fish genus Characidium (C. gomesi, C. pterostictum and C …

B chromosomes occur in several Neotropical fish species. Cytogenetic analysis of 27
specimens (15 females and 12 males) of Astyanax scabripinnis paranae from the Araquá …