The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island

Autores
Stiefkens, Laura B.; Bernardello, Gabriel Luis Mario; Anderson, Gregory J.
Año de publicación
2001
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The mitotic chromosome number and karyotype of Sophora fernandeziana (Phil.) Skottsb. (subfamily Papilionoideae) are reported for the first time. The chromosome number, 2n = 18, is the modal number reported for the genus. The chromosomes are small (average length 1.55 ± 0.23 μm) and bear no satellites. The intrachromosomal and interchromosomal asymmetry indices were A1 = 0:26 and A2 = 0:18, respectively. This symmetrical karyotype is composed of 7 metacentric + 2 submetacentric pairs. This species is related to S. tetraptera J. Mill. from New Zealand. Both share the same chromosome number; unfortunately comparative karyotype data are not available for S. tetraptera. Our data suggest that no changes in chromosome number have occurred during the speciation of S. fernandeziana, in accordance with previous studies of other endemic species in the Juan Fernández flora and for island endemics in general. However, only a small percentage of actual karyotypes of island endemics have been studied, so generalizations about chromosomal evolution for such species are not yet well founded.
Fil: Stiefkens, Laura B.. 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: Bernardello, Gabriel Luis Mario. 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: Anderson, Gregory J.. University of Connecticut; Estados Unidos
Materia
Juan Fernandez Archipielago
Robinson Crusoe Island
Sophora Fernandeziana
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:11336/38867
Acceder
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network_name_str CONICET Digital (CONICET)
spelling The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe IslandStiefkens, Laura B.Bernardello, Gabriel Luis MarioAnderson, Gregory J.Juan Fernandez ArchipielagoRobinson Crusoe IslandSophora Fernandezianahttps://purl.org/becyt/ford/1.6https://purl.org/becyt/ford/1The mitotic chromosome number and karyotype of Sophora fernandeziana (Phil.) Skottsb. (subfamily Papilionoideae) are reported for the first time. The chromosome number, 2n = 18, is the modal number reported for the genus. The chromosomes are small (average length 1.55 ± 0.23 μm) and bear no satellites. The intrachromosomal and interchromosomal asymmetry indices were A1 = 0:26 and A2 = 0:18, respectively. This symmetrical karyotype is composed of 7 metacentric + 2 submetacentric pairs. This species is related to S. tetraptera J. Mill. from New Zealand. Both share the same chromosome number; unfortunately comparative karyotype data are not available for S. tetraptera. Our data suggest that no changes in chromosome number have occurred during the speciation of S. fernandeziana, in accordance with previous studies of other endemic species in the Juan Fernández flora and for island endemics in general. However, only a small percentage of actual karyotypes of island endemics have been studied, so generalizations about chromosomal evolution for such species are not yet well founded.Fil: Stiefkens, Laura B.. 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: Bernardello, Gabriel Luis Mario. 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: Anderson, Gregory J.. University of Connecticut; Estados UnidosUniv Hawaii Press2001-12info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/38867Stiefkens, Laura B.; Bernardello, Gabriel Luis Mario; Anderson, Gregory J.; The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island; Univ Hawaii Press; Pacific Science; 55; 1; 12-2001; 71-750030-88701534-6188CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/https://muse.jhu.edu/article/28480info:eu-repo/semantics/altIdentifier/doi/10.1353/psc.2001.0007info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-15T15:15:18Zoai:ri.conicet.gov.ar:11336/38867instacron: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 15:15:19.05CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
title The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
spellingShingle The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
Stiefkens, Laura B.
Juan Fernandez Archipielago
Robinson Crusoe Island
Sophora Fernandeziana
title_short The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
title_full The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
title_fullStr The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
title_full_unstemmed The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
title_sort The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island
dc.creator.none.fl_str_mv Stiefkens, Laura B.
Bernardello, Gabriel Luis Mario
Anderson, Gregory J.
author Stiefkens, Laura B.
author_facet Stiefkens, Laura B.
Bernardello, Gabriel Luis Mario
Anderson, Gregory J.
author_role author
author2 Bernardello, Gabriel Luis Mario
Anderson, Gregory J.
author2_role author
author
dc.subject.none.fl_str_mv Juan Fernandez Archipielago
Robinson Crusoe Island
Sophora Fernandeziana
topic Juan Fernandez Archipielago
Robinson Crusoe Island
Sophora Fernandeziana
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.6
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv The mitotic chromosome number and karyotype of Sophora fernandeziana (Phil.) Skottsb. (subfamily Papilionoideae) are reported for the first time. The chromosome number, 2n = 18, is the modal number reported for the genus. The chromosomes are small (average length 1.55 ± 0.23 μm) and bear no satellites. The intrachromosomal and interchromosomal asymmetry indices were A1 = 0:26 and A2 = 0:18, respectively. This symmetrical karyotype is composed of 7 metacentric + 2 submetacentric pairs. This species is related to S. tetraptera J. Mill. from New Zealand. Both share the same chromosome number; unfortunately comparative karyotype data are not available for S. tetraptera. Our data suggest that no changes in chromosome number have occurred during the speciation of S. fernandeziana, in accordance with previous studies of other endemic species in the Juan Fernández flora and for island endemics in general. However, only a small percentage of actual karyotypes of island endemics have been studied, so generalizations about chromosomal evolution for such species are not yet well founded.
Fil: Stiefkens, Laura B.. 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: Bernardello, Gabriel Luis Mario. 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: Anderson, Gregory J.. University of Connecticut; Estados Unidos
description The mitotic chromosome number and karyotype of Sophora fernandeziana (Phil.) Skottsb. (subfamily Papilionoideae) are reported for the first time. The chromosome number, 2n = 18, is the modal number reported for the genus. The chromosomes are small (average length 1.55 ± 0.23 μm) and bear no satellites. The intrachromosomal and interchromosomal asymmetry indices were A1 = 0:26 and A2 = 0:18, respectively. This symmetrical karyotype is composed of 7 metacentric + 2 submetacentric pairs. This species is related to S. tetraptera J. Mill. from New Zealand. Both share the same chromosome number; unfortunately comparative karyotype data are not available for S. tetraptera. Our data suggest that no changes in chromosome number have occurred during the speciation of S. fernandeziana, in accordance with previous studies of other endemic species in the Juan Fernández flora and for island endemics in general. However, only a small percentage of actual karyotypes of island endemics have been studied, so generalizations about chromosomal evolution for such species are not yet well founded.
publishDate 2001
dc.date.none.fl_str_mv 2001-12
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/11336/38867
Stiefkens, Laura B.; Bernardello, Gabriel Luis Mario; Anderson, Gregory J.; The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island; Univ Hawaii Press; Pacific Science; 55; 1; 12-2001; 71-75
0030-8870
1534-6188
CONICET Digital
CONICET
url http://hdl.handle.net/11336/38867
identifier_str_mv Stiefkens, Laura B.; Bernardello, Gabriel Luis Mario; Anderson, Gregory J.; The somatic chromosomes of Sophora fernandeziana (Fabaceae), an endemic tree from Robinson Crusoe Island; Univ Hawaii Press; Pacific Science; 55; 1; 12-2001; 71-75
0030-8870
1534-6188
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://muse.jhu.edu/article/28480
info:eu-repo/semantics/altIdentifier/doi/10.1353/psc.2001.0007
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 Univ Hawaii Press
publisher.none.fl_str_mv Univ Hawaii Press
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
_version_ 1846083301056446464
score 13.22299

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