Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay

The tufted capuchin, Cebus apella is a New World Monkey (NWM) species widely used in biomedicine. Its genetic variability has been assessed through various genetic tools. The present study offers a cytogenetic characterization of two captive colonies of Paraguayan specimens, in order to increase the...

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Autores principales: Martinez, R., Torres, E., Nieves, M., Szapkievich, V., Rodríguez, S., Schinini, A., Ascurra, M., Mudry, M.D.
Formato: JOUR
Materias:
Captive colonies
Cebus apella
Cytogenetics
Heterochromatin
Polymorphisms
Cebidae
Cebus
Cebus apella paraguayanus
Platyrrhini
Primates
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_00087114_v57_n4_p332_Martinez
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_00087114_v57_n4_p332_Martinez
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spelling todo:paper_00087114_v57_n4_p332_Martinez2023-10-03T14:07:51Z Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay Martinez, R. Torres, E. Nieves, M. Szapkievich, V. Rodríguez, S. Schinini, A. Ascurra, M. Mudry, M.D. Captive colonies Cebus apella Cytogenetics Heterochromatin Polymorphisms Cebidae Cebus Cebus apella Cebus apella paraguayanus Platyrrhini Primates The tufted capuchin, Cebus apella is a New World Monkey (NWM) species widely used in biomedicine. Its genetic variability has been assessed through various genetic tools. The present study offers a cytogenetic characterization of two captive colonies of Paraguayan specimens, in order to increase the current information on the role of cytogenetic polymorphisms in management of captive capuchins, specially useful for those employed as biomedical models. G-banding confirms all individual as Cebus apella paraguayanus (CAPp). C-banding shows heterochromatic polymorphisms already published for this species, and a paracentric inversion of the interstitial heterochromatin of pair 12, with members of this pair remaining of equal size in all the sample. A retrospective study of C-band polymorphisms in captive CAPp individuals shows a great number of heteromorphisms, considering not only presence/absence of a particular band, but also size and amount of heterochromatin. Therefore, two types of heterochromatic heteromorphisms have been observed (distributional, with a paracentric inversion but no apparent loss of heterochromatin, and quantitative, with a drastic reduction of one homologue’s band, therefore on its total size) suggesting complex chromatin rearrangements for Paraguayan populations, and supporting the idea that Cebus is, among the NWM, perhaps the best model to analyze heterochromatin behavior. © 2004 Taylor & Francis Group, LLC. Fil:Martinez, R. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Nieves, M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Szapkievich, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Mudry, M.D. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00087114_v57_n4_p332_Martinez
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic Captive colonies
Cebus apella
Cytogenetics
Heterochromatin
Polymorphisms
Cebidae
Cebus
Cebus apella
Cebus apella paraguayanus
Platyrrhini
Primates
spellingShingle Captive colonies
Cebus apella
Cytogenetics
Heterochromatin
Polymorphisms
Cebidae
Cebus
Cebus apella
Cebus apella paraguayanus
Platyrrhini
Primates
Martinez, R.
Torres, E.
Nieves, M.
Szapkievich, V.
Rodríguez, S.
Schinini, A.
Ascurra, M.
Mudry, M.D.
Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay
topic_facet Captive colonies
Cebus apella
Cytogenetics
Heterochromatin
Polymorphisms
Cebidae
Cebus
Cebus apella
Cebus apella paraguayanus
Platyrrhini
Primates
description The tufted capuchin, Cebus apella is a New World Monkey (NWM) species widely used in biomedicine. Its genetic variability has been assessed through various genetic tools. The present study offers a cytogenetic characterization of two captive colonies of Paraguayan specimens, in order to increase the current information on the role of cytogenetic polymorphisms in management of captive capuchins, specially useful for those employed as biomedical models. G-banding confirms all individual as Cebus apella paraguayanus (CAPp). C-banding shows heterochromatic polymorphisms already published for this species, and a paracentric inversion of the interstitial heterochromatin of pair 12, with members of this pair remaining of equal size in all the sample. A retrospective study of C-band polymorphisms in captive CAPp individuals shows a great number of heteromorphisms, considering not only presence/absence of a particular band, but also size and amount of heterochromatin. Therefore, two types of heterochromatic heteromorphisms have been observed (distributional, with a paracentric inversion but no apparent loss of heterochromatin, and quantitative, with a drastic reduction of one homologue’s band, therefore on its total size) suggesting complex chromatin rearrangements for Paraguayan populations, and supporting the idea that Cebus is, among the NWM, perhaps the best model to analyze heterochromatin behavior. © 2004 Taylor & Francis Group, LLC.
format JOUR
author Martinez, R.
Torres, E.
Nieves, M.
Szapkievich, V.
Rodríguez, S.
Schinini, A.
Ascurra, M.
Mudry, M.D.
author_facet Martinez, R.
Torres, E.
Nieves, M.
Szapkievich, V.
Rodríguez, S.
Schinini, A.
Ascurra, M.
Mudry, M.D.
author_sort Martinez, R.
title Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay
title_short Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay
title_full Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay
title_fullStr Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay
title_full_unstemmed Genetic variability in two captive colonies of Cebus apella paraguayanus (primates: Platyrrhini) from eastern Paraguay
title_sort genetic variability in two captive colonies of cebus apella paraguayanus (primates: platyrrhini) from eastern paraguay
url http://hdl.handle.net/20.500.12110/paper_00087114_v57_n4_p332_Martinez
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