Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions

We investigated the NOR distribution in ten populations of Physalaemus cuvieri from different regions of Brazil and Argentina. A high variability in NOR pattern was observed and provided a useful tool in grouping several populations. The specimens from the state of Tocantins, northern Brazil, could...

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Autores principales:	QUINDERÉ,YEDA R. S. D, LOURENÇO,LUCIANA B, ANDRADE,GILDA V, TOMATIS,CRISTIAN, BALDO,DIEGO, RECCO-PIMENTEL,SHIRLEI M
Lenguaje:	English
Publicado:	Sociedad de Biología de Chile 2009
Materias:	Anura chromosome cytogenetics NOR Physalaemus polymorphic variations polytypic variations
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000100008
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spelling	oai:scielo:S0716-976020090001000082009-06-11Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regionsQUINDERÉ,YEDA R. S. DLOURENÇO,LUCIANA BANDRADE,GILDA VTOMATIS,CRISTIANBALDO,DIEGORECCO-PIMENTEL,SHIRLEI M Anura chromosome cytogenetics NOR Physalaemus polymorphic variations polytypic variations We investigated the NOR distribution in ten populations of Physalaemus cuvieri from different regions of Brazil and Argentina. A high variability in NOR pattern was observed and provided a useful tool in grouping several populations. The specimens from the state of Tocantins, northern Brazil, could easily be distinguished from all the other analyzed populations, since its karyotype presented NORs in the chromosome pairs 1,3,4 and 10 (and sometimes also in chromosome 5), and several pericentromeric C-bands. A NOR-site in chromosome 9 characterized three populations from the northeastern region of Brazil. Interestingly, the P. cuvieri populations located in opposite extremes of the geographic distribution had, as a fixed condition, the presence of NORs in 8q int and llp. Besides interpopulational divergences, intrapopulational variability was observed in the number of NORs, except for populations from the states of Bahia and Minas Gerais, which are boundary states respectively in the northeastern and southeastern regions of Brazil. In relation to NOR size, interindividual variations occurred in all Brazilian and Argentinean populations. Additionally, intraindividual variability in NOR size was detected in specimens from Minas Gerais. The data presented herein revealed substantial geographic polytypic variation in P. cuvieri and indicated that a taxonomic reexamination of this species is necessary.info:eu-repo/semantics/openAccessSociedad de Biología de ChileBiological Research v.42 n.1 20092009-01-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000100008en10.4067/S0716-97602009000100008
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Anura chromosome cytogenetics NOR Physalaemus polymorphic variations polytypic variations
spellingShingle	Anura chromosome cytogenetics NOR Physalaemus polymorphic variations polytypic variations QUINDERÉ,YEDA R. S. D LOURENÇO,LUCIANA B ANDRADE,GILDA V TOMATIS,CRISTIAN BALDO,DIEGO RECCO-PIMENTEL,SHIRLEI M Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions
description	We investigated the NOR distribution in ten populations of Physalaemus cuvieri from different regions of Brazil and Argentina. A high variability in NOR pattern was observed and provided a useful tool in grouping several populations. The specimens from the state of Tocantins, northern Brazil, could easily be distinguished from all the other analyzed populations, since its karyotype presented NORs in the chromosome pairs 1,3,4 and 10 (and sometimes also in chromosome 5), and several pericentromeric C-bands. A NOR-site in chromosome 9 characterized three populations from the northeastern region of Brazil. Interestingly, the P. cuvieri populations located in opposite extremes of the geographic distribution had, as a fixed condition, the presence of NORs in 8q int and llp. Besides interpopulational divergences, intrapopulational variability was observed in the number of NORs, except for populations from the states of Bahia and Minas Gerais, which are boundary states respectively in the northeastern and southeastern regions of Brazil. In relation to NOR size, interindividual variations occurred in all Brazilian and Argentinean populations. Additionally, intraindividual variability in NOR size was detected in specimens from Minas Gerais. The data presented herein revealed substantial geographic polytypic variation in P. cuvieri and indicated that a taxonomic reexamination of this species is necessary.
author	QUINDERÉ,YEDA R. S. D LOURENÇO,LUCIANA B ANDRADE,GILDA V TOMATIS,CRISTIAN BALDO,DIEGO RECCO-PIMENTEL,SHIRLEI M
author_facet	QUINDERÉ,YEDA R. S. D LOURENÇO,LUCIANA B ANDRADE,GILDA V TOMATIS,CRISTIAN BALDO,DIEGO RECCO-PIMENTEL,SHIRLEI M
author_sort	QUINDERÉ,YEDA R. S. D
title	Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions
title_short	Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions
title_full	Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions
title_fullStr	Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions
title_full_unstemmed	Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions
title_sort	polytypic and polymorphic cytogenetic variations in the widespread anuran physalaemus cuvieri (anura, leiuperidae) with emphasis on nucleolar organizing regions
publisher	Sociedad de Biología de Chile
publishDate	2009
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602009000100008
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Polytypic and polymorphic cytogenetic variations in the widespread anuran Physalaemus cuvieri (Anura, Leiuperidae) with emphasis on nucleolar organizing regions

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