These SNPs have been identified using Sequal in 700 candidate genes that were identified through a resequencing project on Sanger fragments conducted on 23 oak trees (11 Q. robur, 11Q. Petraea and 1 Q. ilex). 254 SNPs were found in Q. petraea, 7190 in Q. petraea/Q. robur and 132 in Q. robur . The sample size varied depending on the fragments studied (from 4 to 12). Each SNP is associated with its samplesize which belongs to [2 â?? 46].