resolution genetic characterization of crop germplasm feasible. A medium density array for
apple, the IRSC 8 K SNP array, has been successfully developed and used for screens of bi-
parental populations. However, the number of robust and well-distributed markers contained
on this array was not sufficient to perform genome-wide association analyses in wider
germplasm sets, or Pedigree-Based Analysis at high precision, because of rapid decay of …