Artigo

The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation

The chromosome complements of four males of Alouatta fusca clamitans, caught in Rio de Janeiro State, Brazil, were analyzed by G-, C-, and NOR-banding techniques. The diploid number found was 49 in all the specimens. The presence of a heteromorphic pair of submetacentric chromosomes in the analyzed...

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Autor principal: OLIVEIRA, Edivaldo Herculano Correa de
Outros Autores: LIMA, Margarida Maria Celeira de, SBALQUEIRO, Ives José, PISSINATTI, Alcides
Grau: Artigo
Idioma: eng
Publicado em: 2014
Assuntos:
Primata
Guariba (Macaco)
Alouatta fusca clamitans
Cromossomos
Citogenética
Cariótipo
Acesso em linha: http://repositorio.ufpa.br/jspui/handle/2011/5472
id ir-2011-5472
recordtype dspace
spelling ir-2011-54722018-01-31T18:47:00Z The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation OLIVEIRA, Edivaldo Herculano Correa de LIMA, Margarida Maria Celeira de SBALQUEIRO, Ives José PISSINATTI, Alcides Primata Guariba (Macaco) Alouatta fusca clamitans Cromossomos Citogenética Cariótipo The chromosome complements of four males of Alouatta fusca clamitans, caught in Rio de Janeiro State, Brazil, were analyzed by G-, C-, and NOR-banding techniques. The diploid number found was 49 in all the specimens. The presence of a heteromorphic pair of submetacentric chromosomes in the analyzed specimens, not present in males and females with 2n = 50 previously reported, and its G-banding pattern, led us to assume that this pair is involved in a Y-autosome translocation. Thus, the sex determination system appears modified to X1X1X2X2 /X1X2Y. Heterochromatic segments were found in the pericentromeric region of all the chromosomes, in the telomeric region of the short arm in pair 2, in the complete length of the short arm of pairs 5 and 6 and in the intercalary region of the long arm in pair 17. The nucleolar organizer regions were situated in the intercalary region of the long arm in two small acrocentric pairs. Os cariótipos referentes a quatro machos de Alouatta fusca clamitans oriundos do Rio de Janeiro foram analisados através de técnicas de bandamento G, C e NOR. O número diplóide em todos os espécimes foi igual a 49, com a presença de três cromossomos não pareados. A comparação dos padrões de bandamento G com espécimes previamente descritos com 2n = 50 revelou a ocorrência de uma translocação do tipo Y-autossomo, modificando o sistema cromossômico de determinação sexual para o tipo múltiplo, X1X2Y/X1X1 X2X2. Os blocos de heterocromatina constitutiva se distribuíram na região pericentromérica de todos os cromossomos; segmentos intercalares e teloméricos foram visualizados em um par acrocêntrico e em outro submetacêntrico, respectivamente. As regiões organizadoras de nucléolo se localizaram no braço longo de dois pares de pequenos acrocêntricos. 2014-08-22T14:21:13Z 2014-08-22T14:21:13Z 1998-09 Artigo de Periódico OLIVEIRA, Edivaldo H.C. de et al. The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation. Genetics and Molecular Biology, São Paulo, v. 21, n. 3, set. 1998. Disponível em: <http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47571998000300012&lng=pt&nrm=iso>. Acesso em: 10 mar. 2014. <http://dx.doi.org/10.1590/S1415-47571998000300012>. 1415-4757 http://repositorio.ufpa.br/jspui/handle/2011/5472 eng Acesso Aberto application/pdf
institution Repositório Institucional - Universidade Federal do Pará
collection RI-UFPA
language eng
topic Primata
Guariba (Macaco)
Alouatta fusca clamitans
Cromossomos
Citogenética
Cariótipo
spellingShingle Primata
Guariba (Macaco)
Alouatta fusca clamitans
Cromossomos
Citogenética
Cariótipo
OLIVEIRA, Edivaldo Herculano Correa de
The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation
topic_facet Primata
Guariba (Macaco)
Alouatta fusca clamitans
Cromossomos
Citogenética
Cariótipo
description The chromosome complements of four males of Alouatta fusca clamitans, caught in Rio de Janeiro State, Brazil, were analyzed by G-, C-, and NOR-banding techniques. The diploid number found was 49 in all the specimens. The presence of a heteromorphic pair of submetacentric chromosomes in the analyzed specimens, not present in males and females with 2n = 50 previously reported, and its G-banding pattern, led us to assume that this pair is involved in a Y-autosome translocation. Thus, the sex determination system appears modified to X1X1X2X2 /X1X2Y. Heterochromatic segments were found in the pericentromeric region of all the chromosomes, in the telomeric region of the short arm in pair 2, in the complete length of the short arm of pairs 5 and 6 and in the intercalary region of the long arm in pair 17. The nucleolar organizer regions were situated in the intercalary region of the long arm in two small acrocentric pairs.
format Artigo
author OLIVEIRA, Edivaldo Herculano Correa de
author2 LIMA, Margarida Maria Celeira de
SBALQUEIRO, Ives José
PISSINATTI, Alcides
author2Str LIMA, Margarida Maria Celeira de
SBALQUEIRO, Ives José
PISSINATTI, Alcides
title The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation
title_short The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation
title_full The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation
title_fullStr The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation
title_full_unstemmed The karyotype of Alouatta fusca clamitans from Rio de Janeiro, Brazil: Evidence for a y-autosome translocation
title_sort karyotype of alouatta fusca clamitans from rio de janeiro, brazil: evidence for a y-autosome translocation
publishDate 2014
url http://repositorio.ufpa.br/jspui/handle/2011/5472
_version_ 1787149360429006848
score 11.674752

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