Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)

Autores
Gunski, Ricardo José; Delgado Cañedo, Andrés; Del Valle Garnero, Analía; Ledesma, Mario Angel; Coria, Néstor Rubén; Montalti, Diego; Marafiga Degrandi, Tiago
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Penguins are classified in the order Sphenisciformes into a single family, Spheniscidae. The genus Pygoscelis Wagler, 1832, is composed of three species, Pygoscelis antarcticus Forster, 1781, P. papua Forster, 1781 and P. adeliae Hombron & Jacquinot, 1841. In this work, the objective was to describe and to compare the karyotypes of Pygoscelis penguins contributing genetic information to Sphenisciformes. The metaphases were obtained by lymphocyte culture, and the diploid number and the C-banding pattern were determined. P. antarcticus has 2n = 92, P. papua 2n = 94 and P. adeliae exhibited 2n = 96 in males and 2n = 95 in females. The difference of diploid number in P. adeliae was identified as a multiple sex chromosome system where males have Z1Z1Z2Z2 and females Z1Z2W. The C-banding showed the presence of a heterochromatic block in the long arm of W chromosome and Z2 was almost entirely heterochromatic. The probable origin of a multiple system in P. adeliae was a translocation involving the W chromosome and the chromosome ancestral to Z2. The comparison made possible the identification of a high karyotype homology in Sphenisciformes which can be seen in the conservation of macrochromosomes and in the Z chromosome. The karyotypic divergences in Pygoscelis are restricted to the number of microchromosomes and W, which proved to be highly variable in size and morphology. The data presented in this work corroborate molecular phylogenetic proposals, supporting the monophyletic origin of penguins and intraspecific relations.
Fil: Gunski, Ricardo José. Universidade Federal do Pampa; Brasil
Fil: Delgado Cañedo, Andrés. Universidade Federal do Pampa; Brasil
Fil: Del Valle Garnero, Analía. Universidade Federal do Pampa; Brasil
Fil: Ledesma, Mario Angel. Parque Ecológico El Puma; Argentina
Fil: Coria, Néstor Rubén. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Montalti, Diego. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Marafiga Degrandi, Tiago. Universidade Federal do Pampa; Brasil
Materia
PYGOSCELIS
KARYOTYPE
SPHENISCIFORMES
SEX CHROMOSOMES
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/267767
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)Gunski, Ricardo JoséDelgado Cañedo, AndrésDel Valle Garnero, AnalíaLedesma, Mario AngelCoria, Néstor RubénMontalti, DiegoMarafiga Degrandi, TiagoPYGOSCELISKARYOTYPESPHENISCIFORMESSEX CHROMOSOMEShttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Penguins are classified in the order Sphenisciformes into a single family, Spheniscidae. The genus Pygoscelis Wagler, 1832, is composed of three species, Pygoscelis antarcticus Forster, 1781, P. papua Forster, 1781 and P. adeliae Hombron & Jacquinot, 1841. In this work, the objective was to describe and to compare the karyotypes of Pygoscelis penguins contributing genetic information to Sphenisciformes. The metaphases were obtained by lymphocyte culture, and the diploid number and the C-banding pattern were determined. P. antarcticus has 2n = 92, P. papua 2n = 94 and P. adeliae exhibited 2n = 96 in males and 2n = 95 in females. The difference of diploid number in P. adeliae was identified as a multiple sex chromosome system where males have Z1Z1Z2Z2 and females Z1Z2W. The C-banding showed the presence of a heterochromatic block in the long arm of W chromosome and Z2 was almost entirely heterochromatic. The probable origin of a multiple system in P. adeliae was a translocation involving the W chromosome and the chromosome ancestral to Z2. The comparison made possible the identification of a high karyotype homology in Sphenisciformes which can be seen in the conservation of macrochromosomes and in the Z chromosome. The karyotypic divergences in Pygoscelis are restricted to the number of microchromosomes and W, which proved to be highly variable in size and morphology. The data presented in this work corroborate molecular phylogenetic proposals, supporting the monophyletic origin of penguins and intraspecific relations.Fil: Gunski, Ricardo José. Universidade Federal do Pampa; BrasilFil: Delgado Cañedo, Andrés. Universidade Federal do Pampa; BrasilFil: Del Valle Garnero, Analía. Universidade Federal do Pampa; BrasilFil: Ledesma, Mario Angel. Parque Ecológico El Puma; ArgentinaFil: Coria, Néstor Rubén. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; ArgentinaFil: Montalti, Diego. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; ArgentinaFil: Marafiga Degrandi, Tiago. Universidade Federal do Pampa; BrasilZoological Institute2017-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/267767Gunski, Ricardo José; Delgado Cañedo, Andrés; Del Valle Garnero, Analía; Ledesma, Mario Angel; Coria, Néstor Rubén; et al.; Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae); Zoological Institute; Comparative Cytogenetics; 11; 3; 8-2017; 541-5521993-07711993-078XCONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://compcytogen.pensoft.net/articles.php?id=13795info:eu-repo/semantics/altIdentifier/doi/10.3897/CompCytogen.v11i3.13795info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T10:09:02Zoai:ri.conicet.gov.ar:11336/267767instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-03 10:09:02.31CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
title Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
spellingShingle Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
Gunski, Ricardo José
PYGOSCELIS
KARYOTYPE
SPHENISCIFORMES
SEX CHROMOSOMES
title_short Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
title_full Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
title_fullStr Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
title_full_unstemmed Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
title_sort Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae)
dc.creator.none.fl_str_mv Gunski, Ricardo José
Delgado Cañedo, Andrés
Del Valle Garnero, Analía
Ledesma, Mario Angel
Coria, Néstor Rubén
Montalti, Diego
Marafiga Degrandi, Tiago
author Gunski, Ricardo José
author_facet Gunski, Ricardo José
Delgado Cañedo, Andrés
Del Valle Garnero, Analía
Ledesma, Mario Angel
Coria, Néstor Rubén
Montalti, Diego
Marafiga Degrandi, Tiago
author_role author
author2 Delgado Cañedo, Andrés
Del Valle Garnero, Analía
Ledesma, Mario Angel
Coria, Néstor Rubén
Montalti, Diego
Marafiga Degrandi, Tiago
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv PYGOSCELIS
KARYOTYPE
SPHENISCIFORMES
SEX CHROMOSOMES
topic PYGOSCELIS
KARYOTYPE
SPHENISCIFORMES
SEX CHROMOSOMES
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Penguins are classified in the order Sphenisciformes into a single family, Spheniscidae. The genus Pygoscelis Wagler, 1832, is composed of three species, Pygoscelis antarcticus Forster, 1781, P. papua Forster, 1781 and P. adeliae Hombron & Jacquinot, 1841. In this work, the objective was to describe and to compare the karyotypes of Pygoscelis penguins contributing genetic information to Sphenisciformes. The metaphases were obtained by lymphocyte culture, and the diploid number and the C-banding pattern were determined. P. antarcticus has 2n = 92, P. papua 2n = 94 and P. adeliae exhibited 2n = 96 in males and 2n = 95 in females. The difference of diploid number in P. adeliae was identified as a multiple sex chromosome system where males have Z1Z1Z2Z2 and females Z1Z2W. The C-banding showed the presence of a heterochromatic block in the long arm of W chromosome and Z2 was almost entirely heterochromatic. The probable origin of a multiple system in P. adeliae was a translocation involving the W chromosome and the chromosome ancestral to Z2. The comparison made possible the identification of a high karyotype homology in Sphenisciformes which can be seen in the conservation of macrochromosomes and in the Z chromosome. The karyotypic divergences in Pygoscelis are restricted to the number of microchromosomes and W, which proved to be highly variable in size and morphology. The data presented in this work corroborate molecular phylogenetic proposals, supporting the monophyletic origin of penguins and intraspecific relations.
Fil: Gunski, Ricardo José. Universidade Federal do Pampa; Brasil
Fil: Delgado Cañedo, Andrés. Universidade Federal do Pampa; Brasil
Fil: Del Valle Garnero, Analía. Universidade Federal do Pampa; Brasil
Fil: Ledesma, Mario Angel. Parque Ecológico El Puma; Argentina
Fil: Coria, Néstor Rubén. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina
Fil: Montalti, Diego. Universidad Nacional de La Plata. Facultad de Ciencias Naturales y Museo. División Zoología de Vertebrados. Sección Ornitología; Argentina. Ministerio de Relaciones Exteriores, Comercio Interno y Culto. Dirección Nacional del Antártico. Instituto Antártico Argentino; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - La Plata; Argentina
Fil: Marafiga Degrandi, Tiago. Universidade Federal do Pampa; Brasil
description Penguins are classified in the order Sphenisciformes into a single family, Spheniscidae. The genus Pygoscelis Wagler, 1832, is composed of three species, Pygoscelis antarcticus Forster, 1781, P. papua Forster, 1781 and P. adeliae Hombron & Jacquinot, 1841. In this work, the objective was to describe and to compare the karyotypes of Pygoscelis penguins contributing genetic information to Sphenisciformes. The metaphases were obtained by lymphocyte culture, and the diploid number and the C-banding pattern were determined. P. antarcticus has 2n = 92, P. papua 2n = 94 and P. adeliae exhibited 2n = 96 in males and 2n = 95 in females. The difference of diploid number in P. adeliae was identified as a multiple sex chromosome system where males have Z1Z1Z2Z2 and females Z1Z2W. The C-banding showed the presence of a heterochromatic block in the long arm of W chromosome and Z2 was almost entirely heterochromatic. The probable origin of a multiple system in P. adeliae was a translocation involving the W chromosome and the chromosome ancestral to Z2. The comparison made possible the identification of a high karyotype homology in Sphenisciformes which can be seen in the conservation of macrochromosomes and in the Z chromosome. The karyotypic divergences in Pygoscelis are restricted to the number of microchromosomes and W, which proved to be highly variable in size and morphology. The data presented in this work corroborate molecular phylogenetic proposals, supporting the monophyletic origin of penguins and intraspecific relations.
publishDate 2017
dc.date.none.fl_str_mv 2017-08
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/267767
Gunski, Ricardo José; Delgado Cañedo, Andrés; Del Valle Garnero, Analía; Ledesma, Mario Angel; Coria, Néstor Rubén; et al.; Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae); Zoological Institute; Comparative Cytogenetics; 11; 3; 8-2017; 541-552
1993-0771
1993-078X
CONICET Digital
CONICET
url http://hdl.handle.net/11336/267767
identifier_str_mv Gunski, Ricardo José; Delgado Cañedo, Andrés; Del Valle Garnero, Analía; Ledesma, Mario Angel; Coria, Néstor Rubén; et al.; Multiple sex chromosome system in penguins (Pygoscelis, Spheniscidae); Zoological Institute; Comparative Cytogenetics; 11; 3; 8-2017; 541-552
1993-0771
1993-078X
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://compcytogen.pensoft.net/articles.php?id=13795
info:eu-repo/semantics/altIdentifier/doi/10.3897/CompCytogen.v11i3.13795
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Zoological Institute
publisher.none.fl_str_mv Zoological Institute
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.13397

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