Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)

46 p. Tablas y gráficas al final del documento.

Detalles Bibliográficos
Autores: Garcia, Sònia, Garnatje, Teresa, McArthur, E. D., Sanderson, S. C., Vallès, Joan
Tipo de recurso: artículo
Fecha de publicación:2008
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/28799
Acceso en línea:http://hdl.handle.net/10261/28799
Access Level:acceso abierto
Palabra clave:Compositae
C value
Hybridization
Polyploidy
Reticulate evolution
r/K selection
Speciation
Tridentatae
Weed
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spelling Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)Garcia, SòniaGarnatje, TeresaMcArthur, E. D.Sanderson, S. C.Vallès, JoanCompositaeC valueHybridizationPolyploidyReticulate evolutionr/K selectionSpeciationTridentataeWeed46 p. Tablas y gráficas al final del documento.Genome size of 48 populations belonging to the North American sagebrushes and related species (mainly from subgenus Tridentatae of the genus Artemisia) has been assessed by flow cytometry. The higher monoploid genome size of the Tridentatae compared with that of the other subgenera of Artemisia is confirmed. The possibility of finding any connection behveen genome size data and different traits of the studied species was examined. Little interspecific variation was found. Such homogeneity in nuclear DNA amount (together with the high morphological chemical and karyological affinities) supports the hypothesis of a recent diversification process in this restricted group. This fact, the incongmence detected in other studies including ITS or cpDNA phylogenies and the natural tendency of these species to hybridize point to a likely reticulate evolution. The most notable difference in 2C-value was found in A. pygmaea and on the basis of its morphology, ecology and higher genome size, it is hypothesized a derived, more specialised condition for the pigmy sagebmsh. Intraspecific nuclear genome size variation has also been assessed, and low values were observed in most cases. Additionally, genome size of the hybrids analysed in this study is close to the expected mean of that of parental species.This work was supported by project CGL 2004-04563-C02-02BOS of the Spanish govemment, and one author (S.G.) received a predoctoral grant (Programa de Formación de Profesorado Universitario) Com the Spanish govemment.Peer reviewedLinnean Society of London201020102008info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501http://hdl.handle.net/10261/28799reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Ingléshttp://dx.doi.org/10.1111/j.1095-8312.2008.01001.xinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/287992026-05-22T06:33:51Z
dc.title.none.fl_str_mv Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
title Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
spellingShingle Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
Garcia, Sònia
Compositae
C value
Hybridization
Polyploidy
Reticulate evolution
r/K selection
Speciation
Tridentatae
Weed
title_short Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
title_full Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
title_fullStr Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
title_full_unstemmed Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
title_sort Evolutionary and ecological implications of genome size in the North American endemic sagebrushes (subgenus Tridentatae, Artemisia, Asteraceae)
dc.creator.none.fl_str_mv Garcia, Sònia
Garnatje, Teresa
McArthur, E. D.
Sanderson, S. C.
Vallès, Joan
author Garcia, Sònia
author_facet Garcia, Sònia
Garnatje, Teresa
McArthur, E. D.
Sanderson, S. C.
Vallès, Joan
author_role author
author2 Garnatje, Teresa
McArthur, E. D.
Sanderson, S. C.
Vallès, Joan
author2_role author
author
author
author
dc.subject.none.fl_str_mv Compositae
C value
Hybridization
Polyploidy
Reticulate evolution
r/K selection
Speciation
Tridentatae
Weed
topic Compositae
C value
Hybridization
Polyploidy
Reticulate evolution
r/K selection
Speciation
Tridentatae
Weed
description 46 p. Tablas y gráficas al final del documento.
publishDate 2008
dc.date.none.fl_str_mv 2008
2010
2010
dc.type.none.fl_str_mv info:eu-repo/semantics/article
http://purl.org/coar/resource_type/c_6501
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10261/28799
url http://hdl.handle.net/10261/28799
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv http://dx.doi.org/10.1111/j.1095-8312.2008.01001.x
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Linnean Society of London
publisher.none.fl_str_mv Linnean Society of London
dc.source.none.fl_str_mv reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC
instname:Consejo Superior de Investigaciones Científicas (CSIC)
instname_str Consejo Superior de Investigaciones Científicas (CSIC)
reponame_str DIGITAL.CSIC. Repositorio Institucional del CSIC
collection DIGITAL.CSIC. Repositorio Institucional del CSIC
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15,81155

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