Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region

Autores
Sánchez, Ysbelia; Raymúndez, María B.; Imery, José; Acosta, María Cristina; Moscone, Eduardo Alberto
Año de publicación
2018
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Nucleolar organizing region of eight species of Aloe was analyzed in somatic metaphases and interphase nuclei. All species showed a uniform 2n=14, with eight large chromosomes and six small chromosomes. Satellites were observed on the long arm of one or two pairs of large chromosomes and/or on the short arm of one of the small pairs. The silver-stained nucleolus organizing regions were located on the subtelomeric region of the long arm of one or two pairs of large chromosomes, except for Aloe dichotoma and Aloe maculata, which the AgNORs were located at a short arm of one of their small chromosomes. In most studied species, the active AgNOR number was four. However, this number changing from one to eight. For all species, the interphase number of nucleoli can be one or two, while, in Aloe excelsa, this number can be changing from one to eight. Polymorphism of active AgNORs and the number of interphase nucleoli were revealed, except for Aloe petricola, which active AgNORs were located only in the subtelomeric regions at the long arm of one of the L2 chromosomes, as well as in the L4 pair, which is agreement with the maximum number (three) of interphase nucleoli.
Fil: Sánchez, Ysbelia. Universidad Nacional Experimental del Tachira; Venezuela. Universidad Pedagogica Experimental Libertador, Institute Pedagogico de Caracas; Venezuela
Fil: Raymúndez, María B.. Universidad Central de Venezuela; Venezuela
Fil: Imery, José. Universidad de Oriente - Venezuela; Venezuela
Fil: Acosta, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Moscone, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Materia
AGNORS
ALOE
NUCLEOLAR ACTIVITY
SILVER-BANDING
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:11336/86548
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/86548
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing regionSánchez, YsbeliaRaymúndez, María B.Imery, JoséAcosta, María CristinaMoscone, Eduardo AlbertoAGNORSALOENUCLEOLAR ACTIVITYSILVER-BANDINGhttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1Nucleolar organizing region of eight species of Aloe was analyzed in somatic metaphases and interphase nuclei. All species showed a uniform 2n=14, with eight large chromosomes and six small chromosomes. Satellites were observed on the long arm of one or two pairs of large chromosomes and/or on the short arm of one of the small pairs. The silver-stained nucleolus organizing regions were located on the subtelomeric region of the long arm of one or two pairs of large chromosomes, except for Aloe dichotoma and Aloe maculata, which the AgNORs were located at a short arm of one of their small chromosomes. In most studied species, the active AgNOR number was four. However, this number changing from one to eight. For all species, the interphase number of nucleoli can be one or two, while, in Aloe excelsa, this number can be changing from one to eight. Polymorphism of active AgNORs and the number of interphase nucleoli were revealed, except for Aloe petricola, which active AgNORs were located only in the subtelomeric regions at the long arm of one of the L2 chromosomes, as well as in the L4 pair, which is agreement with the maximum number (three) of interphase nucleoli.Fil: Sánchez, Ysbelia. Universidad Nacional Experimental del Tachira; Venezuela. Universidad Pedagogica Experimental Libertador, Institute Pedagogico de Caracas; VenezuelaFil: Raymúndez, María B.. Universidad Central de Venezuela; VenezuelaFil: Imery, José. Universidad de Oriente - Venezuela; VenezuelaFil: Acosta, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Moscone, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaInstituto de Pesquisas Jardim Botanico do Rio de Janeiro2018-04info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/86548Sánchez, Ysbelia; Raymúndez, María B.; Imery, José; Acosta, María Cristina; Moscone, Eduardo Alberto; Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region; Instituto de Pesquisas Jardim Botanico do Rio de Janeiro; Rodriguésia; 69; 2; 4-2018; 363-3720370-6583CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1590/2175-7860201869208info:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602018000200363&lng=en&tlng=eninfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:37:58Zoai:ri.conicet.gov.ar:11336/86548instacron: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:34982025-10-22 11:37:58.735CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
title Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
spellingShingle Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
Sánchez, Ysbelia
AGNORS
ALOE
NUCLEOLAR ACTIVITY
SILVER-BANDING
title_short Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
title_full Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
title_fullStr Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
title_full_unstemmed Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
title_sort Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region
dc.creator.none.fl_str_mv Sánchez, Ysbelia
Raymúndez, María B.
Imery, José
Acosta, María Cristina
Moscone, Eduardo Alberto
author Sánchez, Ysbelia
author_facet Sánchez, Ysbelia
Raymúndez, María B.
Imery, José
Acosta, María Cristina
Moscone, Eduardo Alberto
author_role author
author2 Raymúndez, María B.
Imery, José
Acosta, María Cristina
Moscone, Eduardo Alberto
author2_role author
author
author
author
dc.subject.none.fl_str_mv AGNORS
ALOE
NUCLEOLAR ACTIVITY
SILVER-BANDING
topic AGNORS
ALOE
NUCLEOLAR ACTIVITY
SILVER-BANDING
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv Nucleolar organizing region of eight species of Aloe was analyzed in somatic metaphases and interphase nuclei. All species showed a uniform 2n=14, with eight large chromosomes and six small chromosomes. Satellites were observed on the long arm of one or two pairs of large chromosomes and/or on the short arm of one of the small pairs. The silver-stained nucleolus organizing regions were located on the subtelomeric region of the long arm of one or two pairs of large chromosomes, except for Aloe dichotoma and Aloe maculata, which the AgNORs were located at a short arm of one of their small chromosomes. In most studied species, the active AgNOR number was four. However, this number changing from one to eight. For all species, the interphase number of nucleoli can be one or two, while, in Aloe excelsa, this number can be changing from one to eight. Polymorphism of active AgNORs and the number of interphase nucleoli were revealed, except for Aloe petricola, which active AgNORs were located only in the subtelomeric regions at the long arm of one of the L2 chromosomes, as well as in the L4 pair, which is agreement with the maximum number (three) of interphase nucleoli.
Fil: Sánchez, Ysbelia. Universidad Nacional Experimental del Tachira; Venezuela. Universidad Pedagogica Experimental Libertador, Institute Pedagogico de Caracas; Venezuela
Fil: Raymúndez, María B.. Universidad Central de Venezuela; Venezuela
Fil: Imery, José. Universidad de Oriente - Venezuela; Venezuela
Fil: Acosta, María Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Moscone, Eduardo Alberto. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
description Nucleolar organizing region of eight species of Aloe was analyzed in somatic metaphases and interphase nuclei. All species showed a uniform 2n=14, with eight large chromosomes and six small chromosomes. Satellites were observed on the long arm of one or two pairs of large chromosomes and/or on the short arm of one of the small pairs. The silver-stained nucleolus organizing regions were located on the subtelomeric region of the long arm of one or two pairs of large chromosomes, except for Aloe dichotoma and Aloe maculata, which the AgNORs were located at a short arm of one of their small chromosomes. In most studied species, the active AgNOR number was four. However, this number changing from one to eight. For all species, the interphase number of nucleoli can be one or two, while, in Aloe excelsa, this number can be changing from one to eight. Polymorphism of active AgNORs and the number of interphase nucleoli were revealed, except for Aloe petricola, which active AgNORs were located only in the subtelomeric regions at the long arm of one of the L2 chromosomes, as well as in the L4 pair, which is agreement with the maximum number (three) of interphase nucleoli.
publishDate 2018
dc.date.none.fl_str_mv 2018-04
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/11336/86548
Sánchez, Ysbelia; Raymúndez, María B.; Imery, José; Acosta, María Cristina; Moscone, Eduardo Alberto; Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region; Instituto de Pesquisas Jardim Botanico do Rio de Janeiro; Rodriguésia; 69; 2; 4-2018; 363-372
0370-6583
CONICET Digital
CONICET
url http://hdl.handle.net/11336/86548
identifier_str_mv Sánchez, Ysbelia; Raymúndez, María B.; Imery, José; Acosta, María Cristina; Moscone, Eduardo Alberto; Characterization of eight species of Aloe (Asphodelaceae) from the nucleolar organizing region; Instituto de Pesquisas Jardim Botanico do Rio de Janeiro; Rodriguésia; 69; 2; 4-2018; 363-372
0370-6583
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1590/2175-7860201869208
info:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/scielo.php?script=sci_arttext&pid=S2175-78602018000200363&lng=en&tlng=en
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 Instituto de Pesquisas Jardim Botanico do Rio de Janeiro
publisher.none.fl_str_mv Instituto de Pesquisas Jardim Botanico do Rio de Janeiro
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 12.982451

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