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dc.creatorLobo Segura, Jorge Arturo
dc.creatorJiménez, Dennis
dc.creatorSolís Hernández, Wendy
dc.creatorFuchs Castillo, Eric J.
dc.date.accessioned2019-09-05T20:28:38Z
dc.date.available2019-09-05T20:28:38Z
dc.date.issued2015
dc.identifier.issn1537-2197
dc.identifier.urihttps://hdl.handle.net/10669/78994
dc.description.abstractPremise of the study: Selfing and mixed mating systems are prevalent in many flowering plants. Purging of genetic load can occur in these species, reducing negative effects of selfing. Long‐term studies of the temporal and spatial variation of selfing rates and inbreeding depression at the individual level are necessary to understand the forces that maintain selfing as a mating strategy in these species. Methodology: We used microsatellites to estimate selfing rates in seeds and seedlings over 6 years in a population of Ceiba pentandra in southwestern Costa Rica. We studied the correlation of selfing with early seedling vigor variables to test for inbreeding depression. Key results: Selfing rates varied widely among maternal trees. However, we found high consistency of selfing rates for individuals among years. Selfing rate did not influence early fitness traits, suggesting a lack of inbreeding depression at this stage. Maternal effects were a predominant source of variation for early vigor variables. Conclusions: Variability in selfing rates among trees may be partly explained by genetic variation in a late‐acting self‐incompatibility system or low, early‐acting genetic load in some individuals. This population did not show evidence of early inbreeding depression in traits related to seed vigor probably from complete or partial purging as a result of repeated selfing of a fraction of the population or from strong maternal effects. Expression of genetic load at later developmental stages or in more stressful natural conditions may explain differences in inbreeding levels between seeds and adults.en
dc.description.sponsorshipVicerrectoría de Investigación, Universidad de Costa Rica
dc.description.sponsorshipConsejo Nacional de Ciencia y Tecnología de México
dc.description.sponsorshipPrograma de Apoyo a Proyectos de Innovación TecnológicaUniversidad Nacional Autónoma de México
dc.description.sponsorshipInternational Foundation for Science
dc.description.sponsorshipMICIT-CONICIT
dc.language.isoen
dc.sourceAmerican journal of botany 102(2):983-991
dc.subjectBombacoideaen
dc.subjectCosta Ricaen
dc.subjectgenetic loaden
dc.subjectinbreeding depressionen
dc.subjectselfi ngen
dc.subjectMalvaceaeen
dc.subjectmixed-matingen
dc.subjecttropical treesen
dc.titleLack of early inbreeding depression and distribution of selfing rates in the neotropical emergent tree Ceiba pentandra: Assessment from several reproductive eventsen
dc.typeartículo científico
dc.identifier.doi10.3732/ajb.1400520
dc.description.procedenceUCR::Vicerrectoría de Docencia::Ciencias Básicas::Facultad de Ciencias::Escuela de Biología
dc.identifier.codproyecto111-A7-169
dc.identifier.codproyecto111-A8-535


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