Estudio indirecto del sistema de fecundación en una población natural de Prosopis flexuosa (Fabaceae) del Desierto de Atacama, provincia de El Loa (Chile)

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dc.catalogadorjlo
dc.contributor.authorChan, Catalina
dc.contributor.authorPometti, Carolina
dc.contributor.authorSantoro, Calogero M.
dc.contributor.authorFortunato, Renee H.
dc.contributor.authorMc Rostie Bustamante, Virginia Bernardita
dc.contributor.authorBessega, Cecilia
dc.date.accessioned2026-01-20T18:47:13Z
dc.date.available2026-01-20T18:47:13Z
dc.date.issued2024
dc.description.abstractBackground and aims: In the Atacama Desert certain plant species can be found in small and isolated areas, limited to regions with water availability. The degree of connectivity within and between these natural populations depends on their pollen and seed dispersal abilities, as well as on the barriers imposed by the landscape. Prosopis flexuosa is a species of high economic and ecological importance included in the algarrobo Conservation and Management program. The main objective of this work is to analyze the genetic variability and mating system of P. flexuosa in the Atacama Desert. M&M: Genetic diversity parameters as well as the mating system were evaluated in a natural population (Quillagua) based on microsatellite molecular markers. The hierarchical distribution of genetic variance and kinship coefficients were analyzed. Results: The results indicate high levels of genetic diversity (H-E = 0.67-0.65; Ar = 3.83.7), high outcrossing rates (t(m) = 0.97, t(s) = 0.85), low biparental inbreeding (11.6%) and multiple paternity. The proportion of full sibs decreases when considering seeds from the same or different pods (89 -*16%). Only the variance between families is significant (p < 0.001) and mean kinships estimated show that progenies within families are not only constituted by half sibs. Conclusions: The results are discussed and related to the limited pollen and seed dispersal and their implication for the management of this resource. The study of the mating system parameters of this Chilean desert population suggests that the low population density and the environment fragmentation would not be influencing their mating capacity.
dc.fechaingreso.objetodigital2026-01-20
dc.format.extent19 páginas
dc.fuente.origenWOS
dc.identifier.doi10.31055/1851.2372.v59
dc.identifier.eissn1851-2372
dc.identifier.issn0373-580X
dc.identifier.scopusidSCOPUS_ID:85206069909
dc.identifier.urihttps://doi.org/10.31055/1851.2372.v59
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107788
dc.identifier.wosidWOS:001263452100003
dc.information.autorucEscuela de Antropología; Mc Rostie Bustamante, Virginia Bernardita; 0000-0002-3146-3345; 243997
dc.language.isoes
dc.nota.accesocontenido completo
dc.pagina.final198
dc.pagina.inicio181
dc.revistaBoletín de la Sociedad Argentina de Botánica
dc.rightsacceso abierto
dc.subjectAlgarrobo
dc.subjectDesert
dc.subjectFabaceae
dc.subjectKinship
dc.subjectMating system
dc.subjectOutcrossing rate
dc.subject.ddc570
dc.titleEstudio indirecto del sistema de fecundación en una población natural de Prosopis flexuosa (Fabaceae) del Desierto de Atacama, provincia de El Loa (Chile)
dc.title.alternativeIndirect study of the mating system in a natural population of Prosopis flexuosa (Fabaceae) from the Atacama Desert, El Loa Province (Chile)
dc.typeartículo
dc.volumen59
sipa.codpersvinculados243997
sipa.trazabilidadWOS;2024-07-27
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