B chromosomes: an update about their occurrence in freshwater Neotropical fishes (Teleostei)

RA Carvalho, IC Martins‐Santos… - Journal of Fish …, 2008 - Wiley Online Library
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 …

First description of B chromosomes in the family Auchenipteridae, Parauchenipterus galeatus (Siluriformes) of the São Francisco River basin (MG, Brazil)

RL Lui, DR Blanco, VP Margarido, O Moreira Filho - Micron, 2009 - Elsevier
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 …

Comparative cytogenetics of three populations from the Rhamdia quelen species complex (Siluriformes, Heptapteridae) in two Brazilian hydrographic basins

JF Martinez, RL Lui, DR Blanco, JB Traldi, LF Silva… - Caryologia, 2011 - Taylor & Francis
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 …

B chromosomes and natural triploidy in Rhamdia sp.(Pisces, Siluriformes, Heptapteridae)

C Garcia, O Moreira-Filho, LAC Bertollo, L Centofante - Cytologia, 2003 - jstage.jst.go.jp
Cytogenetical studies were carried out on 13 specimens of Rhamdia sp. from Grande stream
(Paraíba do Sul river basin, Mantiqueira hills, Brazil). It was evidenced a standard diploid …

[PDF][PDF] Karyotypic evolution trends in Rhamdia quelen (Siluriformes, Heptapteridae) with considerations about the origin and differentiation of its supernumerary …

C Garcia, C Oliveira, LF Almeida-Toledo - Genetics and Molecular …, 2010 - Citeseer
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 …

An update cytogenetic review for species of the families Pseudopimelodidae, Pimelodidae and Heptapteridae (Pisces, Siluriformes). Suggestion of a cytotaxonomical …

AC Swarça, AS Fenocchio, AL Dias - Caryologia, 2007 - Taylor & Francis
Fifty three species (48 species valid) belonging to the Pimelodidae, Heptapteridae and
Pseudopimelodidae families have been studied cytogenetically, and in the present paper …

Cytogenetic analysis of A-, B-chromosomes and ZZ/ZW sex chromosomes of Characidium gomesi (Teleostei, Characiformes, Crenuchidae)

EL Maistro, CM de Jesus, C Oliveira, O Moreira-Filho… - Cytologia, 2004 - jstage.jst.go.jp
Different cytogenetic techniques were used to analyze the chromosomes of Characidium
gomesi with the main objective of comparing the base composition of ZZ/ZW sex …

Karyotype diversity in two populations of Rhamdia quelen (Pisces, Heptapteridae)

MK Stivari, IC Martins-Santos - Cytologia, 2004 - jstage.jst.go.jp
Cytogenetic studies in 2 populations of Rhamdia quelen collected from the Taquarussu river
and Maringá stream were carried out. Both populations showed diploid number 2n 58 …

Trends in the karyotypic evolution of the Neotropical catfish family Heptapteridae Bockmann 1998 (Teleostei: Siluriformes)

RS de Borba, EL Da Silva, ACS Pacheco… - Reviews in fish biology …, 2012 - Springer
The Heptapteridae family is endemic to the Neotropics and is one of the most representative
members of the Siluriformes order in small bodies of water. Due the lack of data for clearly …

Cytogenetic analysis of A-and B-chromosomes of Iheringichthys labrosus (Pisces, Pimelodidae) from the Tibagi River, Paraná, Brazil

RA de Carvalho, L Giuliano-Caetano, AL Dias - Cytologia, 2004 - jstage.jst.go.jp
Eleven specimens of Iheringichthys labrosus, collected from the Tibagi River (Londrina,
Paraná, Brazil) were analyzed cytogenetically, and were found to have a diploid …