ISHS Acta Horticulturae 546: International Symposium on Molecular Markers for Characterizing Genotypes and Identifying Cultivars in Horticulture
AFLP AND SSR MARKERS FOR GENETIC DIVERSITY ANALYSIS AND CULTIVAR IDENTIFICATION IN PEACH [Prunus persica (L.) Batsch] |
| Authors: | M.J. Aranzana, P. Arús, J. Carbó, G.J. King |
| Keywords: | peach, Prunus persica, AFLPs, SSRs, cultivar identification |
| Abstract:
New peach cultivars have a high economical value and are released at a faster rate than in any other stone fruit crop. For these reasons, there is a strong demand for a rapid and reliable method of cultivar identification in this species. On the other hand, peach is the least genetically variable crop species of Prunus due to its self-compatible behaviour, which implies an additional difficulty to the detection of polymorphisms useful for genotype fingerprinting. In this study we have used two of the most polymorphic kinds of markers, AFLPs and SSRs, to study the level of variability of 100 commercial peach cultivars. Forty AFLPs detected with 9 primer combinations distinguished 97 genotypes. The 32 alleles obtained with 7 polymorphic SSRs were able to identify 78 different genotypes. Using both kinds of markers it was possible to identify 99 genotypes | |
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