EVOLUTION OF AUTONOMOUS SELFING ACCOMPANIES INCREASED SPECIALIZATION IN THE POLLINATION SYSTEM OF <i>SCHIZANTHUS</i> (SOLANACEAE)

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dc.contributor.authorPerez, Fernanda
dc.contributor.authorArroyo, Mary T. K.
dc.contributor.authorArmesto, Juan J.
dc.date.accessioned2025-01-21T00:08:56Z
dc.date.available2025-01-21T00:08:56Z
dc.date.issued2009
dc.description.abstractThe co-occurrence of elaborate flowers visited by specific groups of pollinators and capacity for autonomous selfing in the same plant species has puzzled evolutionary biologists since the time of Charles Darwin. To examine whether autonomous selfing and floral specialization evolved in association, we quantified the autofertility level (AFI) in nine Schizanthus species characterized by a wide range of pollination specialization, revealing AFI values of 0.02 to complete selfing. An independent contrasts analysis conducted on AFIs and number of functional pollinator groups showed that autonomous selfing evolved from an ancestral out-crossing system is plants became increasingly specialized (r = -0.82). To assess whether autonomous selfing together with specialization acts as a reproductive assurance mechanism, we estimated spatial and interannual variation in fruit set due to pollinator failure in two closely related high Andean Schizanthus species differing in their specialization levels. Variation in pollinator failure rate was more pronounced and autonomous selfing increased fruit production over biotically assisted pollination in the more specialized species. Our study suggests that specialized pollination deems species more vulnerable to pollinator fluctuation thus promoting the evolution of delayed autonomous selfing.
dc.fuente.origenWOS
dc.identifier.doi10.3732/ajb.0800306
dc.identifier.issn0002-9122
dc.identifier.urihttps://doi.org/10.3732/ajb.0800306
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/95689
dc.identifier.wosidWOS:000266684800012
dc.issue.numero6
dc.language.isoen
dc.pagina.final1176
dc.pagina.inicio1168
dc.revistaAmerican journal of botany
dc.rightsacceso restringido
dc.subjectautonomous selfing
dc.subjectbreeding system
dc.subjectfloral specialization
dc.subjectindependent contrasts analysis
dc.subjectpollination syndrome
dc.subjectpollinator failure
dc.subjectreproductive assurance
dc.subject.ods15 Life on Land
dc.subject.ods13 Climate Action
dc.subject.odspa15 Vida de ecosistemas terrestres
dc.subject.odspa13 Acción por el clima
dc.titleEVOLUTION OF AUTONOMOUS SELFING ACCOMPANIES INCREASED SPECIALIZATION IN THE POLLINATION SYSTEM OF <i>SCHIZANTHUS</i> (SOLANACEAE)
dc.typeartículo
dc.volumen96
sipa.indexWOS
sipa.trazabilidadWOS;2025-01-12
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