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dc.contributor.author
Lucero, Leandro Exequiel
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dc.contributor.author
Vegetti, Abelardo Carlos
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dc.contributor.author
Reinheimer, Renata
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dc.date.available
2016-11-29T21:33:34Z
dc.date.issued
2014-01-08
dc.identifier.citation
Lucero, Leandro Exequiel; Vegetti, Abelardo Carlos; Reinheimer, Renata; Evolution and development of the spikelet and flower of Rhynchospora (Cyperaceae); University Of Chicago Press; International Journal Of Plant Sciences; 175; 2; 8-1-2014; 186-201
dc.identifier.issn
1058-5893
dc.identifier.uri
http://hdl.handle.net/11336/8482
dc.description.abstract
Premise of research. Rhynchospora, one of the biggest genera of sedges, displays several spikelet and flower modifications and is one of a few genera where the pollination strategy changes from wind to insect pollination; however, the mechanisms that have promoted such diversity in the genus are unknown. We have performed a comparative study of spikelet and flower development of Rhynchospora from an evolutionary perspective to get insight into the bases of spikelet and flower evolution. Particularly, we investigate correlations between the change from wind to insect pollination that occur in the genus and the spikelet and flower traits.
Methodology. The spikelet and flower development of nine species of Rhynchospora were studied using SEM images. Parsimony, maximum likelihood, and Bayesian reconstruction analyses were conducted to evaluate the evolutionary history of flower and spikelet developmental programs.
Pivotal results. We identified seven morphological and developmental traits that vary among Rhynchospora species; ancestral character reconstructions show that the spikelet and flower morphology and their developmental pathways support the diversification of Rhynchospora lineages.
Conclusions. Our results suggest that the evolution of spikelet and flower developmental programs in Rhynchospora may be related to the evolution of its pollination type and mating system. The evolution toward a bisexual spikelet and flowers in which the androecium develops faster than the gynoecium may represent important steps for the transition from a wind- to insect-pollination system. In addition, we found new traits of spikelets and flowers that may help to distinguish natural groups within Rhynchospora.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
University Of Chicago Press
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dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Rhynchospora
dc.subject
Flower
dc.subject
Spikelet
dc.subject
Development
dc.subject
Evolution
dc.subject
Cyperaceae
dc.subject.classification
Ciencias de las Plantas, Botánica
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dc.subject.classification
Ciencias Biológicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Evolution and development of the spikelet and flower of Rhynchospora (Cyperaceae)
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-11-24T14:14:12Z
dc.identifier.eissn
1537-5315
dc.journal.volume
175
dc.journal.number
2
dc.journal.pagination
186-201
dc.journal.pais
Estados Unidos
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dc.journal.ciudad
Chicago
dc.description.fil
Fil: Lucero, Leandro Exequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral; Argentina
dc.description.fil
Fil: Vegetti, Abelardo Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Santa Fe. Instituto de Agrobiotecnologia del Litoral; Argentina. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentina
dc.description.fil
Fil: Reinheimer, Renata. Universidad Nacional del Litoral. Facultad de Ciencias Agrarias; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Botánica Darwinion; Argentina
dc.journal.title
International Journal Of Plant Sciences
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org//10.1086/674317
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.journals.uchicago.edu/doi/abs/10.1086/674317
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