Fish exhibit the greatest diversity of all vertebrates, making this group extremely attractive for
the study of a number of evolutionary questions. Fish genomes have intrinsic characteristics …

Though hundreds to thousands of reports have described the distribution of B chromosomes
among diverse eukaryote groups, a comprehensive theory of their biological role has not yet …

B chromosomes are supernumerary elements found in several groups of eukaryotes,
including fungi, plants, and animals. Typically, these chromosomes either originate from …

A survey of new species with B chromosomes (Bs), based on a collection of 900
publications, gives an estimate of 406+ B species discovered since they were last surveyed …

B-chromosomes are frequently argued to be genetically inert elements, but activity for some
particular genes has been reported, especially for ribosomal RNA (rRNA) genes whose …

Serrasalmidae has high morphological and chromosomal diversity. Based on molecular
hypotheses, the family is currently divided into two subfamilies, Colossomatinae and …

The aim of this study was to characterize cytogenetically one population of the fish
Moenkhausia sanctaefilomenae (Steindachner, 1907), with emphasis on the analysis of B …

B chromosomes are considered to be genetically inert elements. However, some of them are
able to show nucleolus organizer region (NOR) activity, as detected by both cytological and …

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

A etnoictiologia, baseando-se em parâmetros da ecologia, pode ser uma ferramenta
bastante útil no estudo das mudanças ambientais provocadas por ações humanas, pois tais …