Sturgeon and paddlefishes (Acipenseriformes) are cultured worldwide for commercial and
conservation purposes. Over the past decade, we have learned many sturgeon culture …

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 chromosomes are considered additional and non-essential; they likely originate from A
chromosomes and follow a distinct evolution. In fish, approximately half of the Neotropical …

ABSTRACT DNA barcoding is a widely utilized molecular-based identification of species
and taxonomic resolutions. Until recently, Rhamdia voulezi and Rhamdia branneri were …

Karyotypes and other chromosomal markers were investigated in three species of the catfish
genus Pimelodus, namely P. fur, P. maculatus and Pimelodus sp., from municipality of Três …

ABSTRACT The species Rhamdia branneri Haseman, 1911 and the subspecies Rhamdia
branneri voulezi Haseman, 1911 from rio Iguaçu are currently recognized as synonyms of …

Among the more than 30 families of the order Siluriformes, Heptapteridae is composed of
189 species distributed into 24 genera. Rhamdia, which has wide distribution throughout the …

Among catfish species of the genus Rhamdia reported for the Brazilian territory, R. quelen is
the most widespread, being found in nearly all hydrographic basins of Brazil. Nowadays, R …

Chromosome microdissection is a technique in which whole chromosomes or chromosomal
segments are dissected under an inverted microscope yielding chromosome-specific …

Pimelodidae is one of the most representative of Neotropical catfish families. However,
these fish are still poorly studied in terms of cytogenetics, especially regarding the …