Population structure analysis of European hazelnut (Corylus avellana)
Eleven simple sequence repeat (SSRs) markers were used to investigate population structure of 582 accessions representing hazelnut cultivars grown in different geographical regions of the world. SSR profiles for 229 accessions were assessed for the first time, and their allele sizes were combined with those of 353 accessions previously characterized and published, for an analysis of genetic diversity and population structure. The combined data for all 582 accessions was used to construct an UPGMA (unweighted pair group method of arithmetic averages) dendrogram. The UPGMA tree showed multiple groups with clustering partly based on their geographic origin. The STRUCTURE analysis indicated that the most likely number of sub-populations is three to seven. Taken together, the results showed that cultivated hazelnuts consist of multiple genetic groups and cultivars were likely selected from local wild populations rather than originating in one or two domestication centers.
Gürcan, K., Mehlenbacher, S.A., Köse, M.A. and Balık, H.İ. (2018). Population structure analysis of European hazelnut (Corylus avellana). Acta Hortic. 1226, 87-92
genetic diversity, simple sequence repeats, microsatellite, phylogenetic analysis