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dc.contributor.author
Angulo, Maria Betiana
dc.contributor.author
Chalup, Laura María Isabel
dc.contributor.author
Florentín, Javier Elias
dc.contributor.author
Dematteis, Massimiliano
dc.date.available
2023-11-13T14:03:42Z
dc.date.issued
2022-12
dc.identifier.citation
Angulo, Maria Betiana; Chalup, Laura María Isabel; Florentín, Javier Elias; Dematteis, Massimiliano; The evolution of chromosome number during the diversification of the tribe Vernonieae (Asteraceae); Wiley Blackwell Publishing, Inc; Botanical Journal of The Linnean Society; 200; 4; 12-2022; 524-540
dc.identifier.issn
0024-4074
dc.identifier.uri
http://hdl.handle.net/11336/217887
dc.description.abstract
Changes in chromosome number have played an important role in the diversification and evolution of angiosperms. In Asteraceae, tribe Vernonieae are one of the most variable groups with regard to chromosome number. Previously, chromosome numbers n = 9 and 10 were thought to characterize the Old World members of the tribe, and n = 14, 16, 17 and 18 the New World members. This scenario was revised as a result of reports of new chromosome numbers, but the events leading to this wide variation remain unknown. Here we carried out a phylogenetic analysis of Vernonieae in a temporal framework, assessing patterns of diversification and establishing possible relationships with chromosome events. Chromosomal evolution was analysed with ChromEvol, from a phylogenetic tree dated in BEAST. Shifts in diversification rates using Bayesian analysis of macroevolutionary mixtures were inferred. Vernonieae originated ~46 Mya and the diversification rate increased sharply ~11 Mya after the Mid-Miocene Climatic Optimum. The ancestral chromosome number for the tribe was n = 10, which remained stable for Old World taxa, whereas n = 9 was the ancestral number for New World species. The tribe has undergone 32 chromosome rearrangements throughout its evolutionary history, with dysploidy and polyploidy possibly explaining the observed diversification pattern.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Wiley Blackwell Publishing, Inc
dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CHROMOSOME NUMBER
dc.subject
DIVERSIFICATION RATE SHIFTS
dc.subject
DYSPLOIDY
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NEW WORLD
dc.subject
OLD WORLD
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POLYPLOIDY
dc.subject.classification
Ciencias de las Plantas, Botánica
dc.subject.classification
Ciencias Biológicas
dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
dc.title
The evolution of chromosome number during the diversification of the tribe Vernonieae (Asteraceae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-11-13T10:40:18Z
dc.journal.volume
200
dc.journal.number
4
dc.journal.pagination
524-540
dc.journal.pais
Reino Unido
dc.journal.ciudad
Londres
dc.description.fil
Fil: Angulo, Maria Betiana. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Chalup, Laura María Isabel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Florentín, Javier Elias. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.description.fil
Fil: Dematteis, Massimiliano. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Nordeste. Instituto de Botánica del Nordeste. Universidad Nacional del Nordeste. Facultad de Ciencias Agrarias. Instituto de Botánica del Nordeste; Argentina
dc.journal.title
Botanical Journal of The Linnean Society
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://academic.oup.com/botlinnean/article/200/4/524/6660938
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1093/botlinnean/boac025
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