Linkage disequilibrium and population structure in Fragaria chiloensis revealed by SSR markers transferred from commercial strawberry

Vista sencilla de ítem
dc.creatorFelipe Alberto Oñate
dc.creatorRodrigo Hasbún
dc.creatorFreddy Mora
dc.creatorCarlos Rodrigo Figueroa
dc.date2018
dc.date.accessioned2026-07-07T03:55:00Z
dc.descriptionThe Chilean strawberry Fragaria chiloensis (L.) Mill. is the maternal progenitor of the commercial strawberry (Fragaria ( ananassa Duch.), which is characterized by fruits with high organoleptic quality and is well-suited to areas where drought and salinity represent a constraint on crop growth and productivity. We examined the patterns of linkage disequilibrium, genetic diversity and population structure among 54 accessions of F. chiloensis to understand the genetic basis of this species. We used a core microsatellite marker set (n = 95) from a consensus linkage map of strawberry. A transferability rate of 82.1% (78/95) was found, and 38 markers were selected for this study. The SSR primers produced a total of 259 alleles, which varied between 112 and 342 bp. Lower genetic diversity at the species level (HE = 0.17, Shannon’s index = 0.28) was found compared to previous studies of this species. No climatic region pattern for SSR diversity was observed. Structure analysis suggests that the accessions are grouped into three significantly differentiated clusters. Pairwise estimates of φST indicated a low degree of differentiation between the three genetic groups (φST = 0.023 to 0.06). These groups are in concordance with potential glacial refugia in the region, with many accessions being an admixture of them.
dc.formatapplication/pdf
dc.identifier1679-9275
dc.identifierhttps://www.redalyc.org/articulo.oa?id=303058204011
dc.identifierhttps://www.redalyc.org/journal/3030/303058204011/
dc.identifierhttps://www.redalyc.org/journal/3030/303058204011/html/
dc.identifierhttps://www.redalyc.org/journal/3030/303058204011/303058204011.epub
dc.identifierhttps://www.redalyc.org/journal/3030/303058204011/movil
dc.identifier10.4025/actasciagron.v40i1.34966
dc.identifier.urihttp://hdl.handle.net/123456789/447290
dc.languageen
dc.publisherUniversidade Estadual de Maringá
dc.relationhttp://www.redalyc.org/revista.oa?id=3030
dc.rightsActa Scientiarum. Agronomy
dc.sourceActa Scientiarum. Agronomy (Brasil) Vol.40
dc.subjectAgrociencias
dc.titleLinkage disequilibrium and population structure in Fragaria chiloensis revealed by SSR markers transferred from commercial strawberry
dc.typeartículo científico

Archivos

Colecciones

Acta Scientiarum. Agronomy - Universidade Estadual de Maringá