Efficiency of Single Nucleotide Polymorphisms to improve a genetic map of complex pedigree grapevines

markers (CABEZAS et al. 2011) was tested for their use-fulness to improve a genetic map from the cross of GF.GA-52-42 x 'Solaris ' previously established with SSR markers (SCHWANDER et al. 2012). 55.3 % of the SNPs showed informative segregation and 26 SNP markers were localized on 16 of the 19 linkage groups of grapevine. Five chromosome regions with large gaps of recombining SSR markers could be equipped by positioning a SNP marker there. One SNP marker, VV10992, was found linked to the major resistance lo-cus Rpv10 and should be applicable for marker-assisted selection. K e y w o r d s: genetic mapping, SNP markers