Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil

Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil

Karyotypic data are presented for two sympatric Corydoras species of the Lagoa Dourada, namely, C. ehrhadti and C. paleatus, which are found in the upper Tibagi river basin (Ponta Grossa, State of Paraná, Brazil). The same diploid number and karyotypic formula were observed in both species/populatio...

Full description

Bibliographic Details
Main Authors: R. F. Artoni, M. L. Terêncio, M. R. Vicari, M. C. A. Matiello, M. M. Cestari, L. A. C. Bertollo
Format: Article
Language:English
Published: Instituto Internacional de Ecologia
Series:Brazilian Journal of Biology
Subjects:
karyotype
sympatry
heterochromatin
NORs
rDNA
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000200002&lng=en&tlng=en
id doaj-1e99ca837ec348a29034081845cb0fa1
record_format Article
spelling doaj-1e99ca837ec348a29034081845cb0fa12020-11-24T23:23:46ZengInstituto Internacional de EcologiaBrazilian Journal of Biology1678-4375661b19119810.1590/S1519-69842006000200002S1519-69842006000200002Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern BrazilR. F. Artoni0M. L. Terêncio1M. R. Vicari2M. C. A. Matiello3M. M. Cestari4L. A. C. Bertollo5Universidade Estadual de Ponta GrossaUniversidade Estadual de Ponta GrossaUniversidade Federal de São CarlosUniversidade Estadual de Ponta GrossaUniversidade Federal do ParanáUniversidade Federal de São CarlosKaryotypic data are presented for two sympatric Corydoras species of the Lagoa Dourada, namely, C. ehrhadti and C. paleatus, which are found in the upper Tibagi river basin (Ponta Grossa, State of Paraná, Brazil). The same diploid number and karyotypic formula were observed in both species/populations. A great similarity in the constitutive heterochromatin distribution and in the activity of nucleolar organizer regions was also found. The use of in situ hybridization with a fluorescent 18S rDNA probe allowed for the identification of the species/populations through the location of ribosomal sites.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000200002&lng=en&tlng=enkaryotypesympatryheterochromatinNORsrDNA
collection DOAJ
language English
format Article
sources DOAJ
author R. F. Artoni
M. L. Terêncio
M. R. Vicari
M. C. A. Matiello
M. M. Cestari
L. A. C. Bertollo
spellingShingle R. F. Artoni
M. L. Terêncio
M. R. Vicari
M. C. A. Matiello
M. M. Cestari
L. A. C. Bertollo
Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil
Brazilian Journal of Biology
karyotype
sympatry
heterochromatin
NORs
rDNA
author_facet R. F. Artoni
M. L. Terêncio
M. R. Vicari
M. C. A. Matiello
M. M. Cestari
L. A. C. Bertollo
author_sort R. F. Artoni
title Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil
title_short Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil
title_full Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil
title_fullStr Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil
title_full_unstemmed Cytogenetics of two sympatric Corydoras species (pisces, siluriformes, challichtyidae) of Southern Brazil
title_sort cytogenetics of two sympatric corydoras species (pisces, siluriformes, challichtyidae) of southern brazil
publisher Instituto Internacional de Ecologia
series Brazilian Journal of Biology
issn 1678-4375
description Karyotypic data are presented for two sympatric Corydoras species of the Lagoa Dourada, namely, C. ehrhadti and C. paleatus, which are found in the upper Tibagi river basin (Ponta Grossa, State of Paraná, Brazil). The same diploid number and karyotypic formula were observed in both species/populations. A great similarity in the constitutive heterochromatin distribution and in the activity of nucleolar organizer regions was also found. The use of in situ hybridization with a fluorescent 18S rDNA probe allowed for the identification of the species/populations through the location of ribosomal sites.
topic karyotype
sympatry
heterochromatin
NORs
rDNA
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-69842006000200002&lng=en&tlng=en
work_keys_str_mv AT rfartoni cytogeneticsoftwosympatriccorydorasspeciespiscessiluriformeschallichtyidaeofsouthernbrazil
AT mlterencio cytogeneticsoftwosympatriccorydorasspeciespiscessiluriformeschallichtyidaeofsouthernbrazil
AT mrvicari cytogeneticsoftwosympatriccorydorasspeciespiscessiluriformeschallichtyidaeofsouthernbrazil
AT mcamatiello cytogeneticsoftwosympatriccorydorasspeciespiscessiluriformeschallichtyidaeofsouthernbrazil
AT mmcestari cytogeneticsoftwosympatriccorydorasspeciespiscessiluriformeschallichtyidaeofsouthernbrazil
AT lacbertollo cytogeneticsoftwosympatriccorydorasspeciespiscessiluriformeschallichtyidaeofsouthernbrazil
_version_ 1725563694626111488

Similar Items