Skip to Main content Skip to Navigation
Journal articles

Variation in grafted European chestnut and hybrids by microsatellites reveals two main origins in the Iberian Peninsula

Abstract : This is the first known large-scale molecular study of simple sequence repeats (SSR) loci based on samples from grafted trees found in the Iberian Peninsula and Canary Islands and hybrids. Interspecific hybrids resistant to ‘ink disease’ (Phytophthora spp.) were obtained in France, Portugal and Spain, although difficult to distinguish by morphology. This study focuses on genetic variation using 10 SSRs (11 unlinked loci) from clonally propagated cultivars (574 accessions) of European chestnut (Castanea sativa) and hybrids (71 accessions). They were compared with a representative sample of exotic chestnut species present in the Atlantic area, 47 accessions of Castanea crenata, 37 of Castanea mollissima and 33 of Castanea henryi. Accessions were analysed using a model-based Bayesian procedure (Structure), factorial correspondence analysis and analysis of molecular variance. The main chestnut species, hybrids and alien introgressions were differentiated. Two main origins of variability in European cultivated chestnut were found in the Iberian Peninsula, one in the North and a second in the Centre. Andalusian and Canary Island accessions could be assigned to both of these zones, which indicate that they could have been colonised with cultivars originating from either zone, in the case of the Canary Islands from the sixteenth century on.
Document type :
Journal articles
Complete list of metadata

https://hal.inrae.fr/hal-02666780
Contributor : Migration Prodinra Connect in order to contact the contributor
Submitted on : Sunday, May 31, 2020 - 9:22:05 AM
Last modification on : Tuesday, October 19, 2021 - 11:03:21 AM

Links full text

Identifiers

Collections

Citation

Santiago Pereira-Lorenzo, Rita Maria Lourenço Costa, Ana María Ramos-Cabrer, Carla Alexandra Marques Ribeiro, Marta Filipa Serra da Silva, et al.. Variation in grafted European chestnut and hybrids by microsatellites reveals two main origins in the Iberian Peninsula. Tree Genetics and Genomes, Springer Verlag, 2010, 6 (5), pp.701-715. ⟨10.1007/s11295-010-0285-y⟩. ⟨hal-02666780⟩

Share

Metrics

Record views

17