A genetic linkage map was constructed from a F1 population comprising 91 seedlings derived from a cross between Bayuehong and Dangshansu using Joinmap3.0. The map consisted of 61 EST-SSR markers from apple,68 SSR markers from apple,49 SSR markers from pear,1 RAPD marker and 3 morphological traits which belonged to 19 linkage groups and spaned 982 cM with an average genetic distance of 5.4 cM. The locus RFS that controlled red fruit skin color was located on linkage group 3 and linked to the nearest markers ...