B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes

Autores
Acosta, María Cristina; Moscone, Eduardo Alberto
Año de publicación
2011
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
B chromosomes are additional dispensable chromosomes that may be present in some individuals, populations, or species, which have probably arisen from the A chromosomes but follow their own evolutionary pathway. Supposedly, B chromosomes do not contain major genes except for ribosomal DNA (rDNA) sequences that have been mapped on the supernumerary chromosomes of many plants and animals. This paper is a new report of B chromosome occurrence in plants. B chromosomes with nucleolar organizing regions (NORs) were found in a diploid sample of Nierembergiaaristata D. Don (sub nom. N. stricta Miers) (2n = 2x = 16). This is an extreme case in which B chromosomes possess not only strong nucleolar activity, as revealed by conventional staining methods, AgNOR and fluorescence banding, and fluorescent in situ hybridization (FISH), but also show nucleolar competition with the A chromosomes. The observed phenomenon could be analogous to the nucleolar dominance or ‘differential amphiplasty’ phenomenon that occurs in interspecific hybrids.
Fil: Acosta, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Moscone, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Materia
B Chromosomes
Nierembregia
Nucleolar Activity
Nucleolar Dominance
Solanaceae
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/13250
Acceder
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network_name_str CONICET Digital (CONICET)
spelling B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A ChromosomesAcosta, María CristinaMoscone, Eduardo AlbertoB ChromosomesNierembregiaNucleolar ActivityNucleolar DominanceSolanaceaehttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1B chromosomes are additional dispensable chromosomes that may be present in some individuals, populations, or species, which have probably arisen from the A chromosomes but follow their own evolutionary pathway. Supposedly, B chromosomes do not contain major genes except for ribosomal DNA (rDNA) sequences that have been mapped on the supernumerary chromosomes of many plants and animals. This paper is a new report of B chromosome occurrence in plants. B chromosomes with nucleolar organizing regions (NORs) were found in a diploid sample of Nierembergiaaristata D. Don (sub nom. N. stricta Miers) (2n = 2x = 16). This is an extreme case in which B chromosomes possess not only strong nucleolar activity, as revealed by conventional staining methods, AgNOR and fluorescence banding, and fluorescent in situ hybridization (FISH), but also show nucleolar competition with the A chromosomes. The observed phenomenon could be analogous to the nucleolar dominance or ‘differential amphiplasty’ phenomenon that occurs in interspecific hybrids.Fil: Acosta, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaFil: Moscone, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); ArgentinaKarger2011-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/13250Acosta, María Cristina; Moscone, Eduardo Alberto; B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes; Karger; Cytogenetic And Genome Research; 132; 1-2; 1-2011; 105-1121424-85811424-859Xenginfo:eu-repo/semantics/altIdentifier/url/https://www.karger.com/Article/Abstract/320705info:eu-repo/semantics/altIdentifier/doi/10.1159/000320705info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T14:58:48Zoai:ri.conicet.gov.ar:11336/13250instacron: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:34982025-10-15 14:58:48.849CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
title B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
spellingShingle B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
Acosta, María Cristina
B Chromosomes
Nierembregia
Nucleolar Activity
Nucleolar Dominance
Solanaceae
title_short B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
title_full B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
title_fullStr B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
title_full_unstemmed B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
title_sort B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes
dc.creator.none.fl_str_mv Acosta, María Cristina
Moscone, Eduardo Alberto
author Acosta, María Cristina
author_facet Acosta, María Cristina
Moscone, Eduardo Alberto
author_role author
author2 Moscone, Eduardo Alberto
author2_role author
dc.subject.none.fl_str_mv B Chromosomes
Nierembregia
Nucleolar Activity
Nucleolar Dominance
Solanaceae
topic B Chromosomes
Nierembregia
Nucleolar Activity
Nucleolar Dominance
Solanaceae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv B chromosomes are additional dispensable chromosomes that may be present in some individuals, populations, or species, which have probably arisen from the A chromosomes but follow their own evolutionary pathway. Supposedly, B chromosomes do not contain major genes except for ribosomal DNA (rDNA) sequences that have been mapped on the supernumerary chromosomes of many plants and animals. This paper is a new report of B chromosome occurrence in plants. B chromosomes with nucleolar organizing regions (NORs) were found in a diploid sample of Nierembergiaaristata D. Don (sub nom. N. stricta Miers) (2n = 2x = 16). This is an extreme case in which B chromosomes possess not only strong nucleolar activity, as revealed by conventional staining methods, AgNOR and fluorescence banding, and fluorescent in situ hybridization (FISH), but also show nucleolar competition with the A chromosomes. The observed phenomenon could be analogous to the nucleolar dominance or ‘differential amphiplasty’ phenomenon that occurs in interspecific hybrids.
Fil: Acosta, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
Fil: Moscone, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Córdoba. Instituto Multidisciplinario de Biología Vegetal (p); Argentina
description B chromosomes are additional dispensable chromosomes that may be present in some individuals, populations, or species, which have probably arisen from the A chromosomes but follow their own evolutionary pathway. Supposedly, B chromosomes do not contain major genes except for ribosomal DNA (rDNA) sequences that have been mapped on the supernumerary chromosomes of many plants and animals. This paper is a new report of B chromosome occurrence in plants. B chromosomes with nucleolar organizing regions (NORs) were found in a diploid sample of Nierembergiaaristata D. Don (sub nom. N. stricta Miers) (2n = 2x = 16). This is an extreme case in which B chromosomes possess not only strong nucleolar activity, as revealed by conventional staining methods, AgNOR and fluorescence banding, and fluorescent in situ hybridization (FISH), but also show nucleolar competition with the A chromosomes. The observed phenomenon could be analogous to the nucleolar dominance or ‘differential amphiplasty’ phenomenon that occurs in interspecific hybrids.
publishDate 2011
dc.date.none.fl_str_mv 2011-01
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/11336/13250
Acosta, María Cristina; Moscone, Eduardo Alberto; B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes; Karger; Cytogenetic And Genome Research; 132; 1-2; 1-2011; 105-112
1424-8581
1424-859X
url http://hdl.handle.net/11336/13250
identifier_str_mv Acosta, María Cristina; Moscone, Eduardo Alberto; B Chromosomes in Nierembergia aristata (Solanaceae): Nucleolar Activity and Competition with the A Chromosomes; Karger; Cytogenetic And Genome Research; 132; 1-2; 1-2011; 105-112
1424-8581
1424-859X
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/url/https://www.karger.com/Article/Abstract/320705
info:eu-repo/semantics/altIdentifier/doi/10.1159/000320705
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
dc.publisher.none.fl_str_mv Karger
publisher.none.fl_str_mv Karger
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 13.22299

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