Fig. 4

Mapping of QTLs affecting the height variation of one-year-old seedlings derived from artificial cross of twop . tremulagenotypes. Upper scan: paternal linkage map. Lower scan: maternal linkage map. Length of 19 linkage groups (cM) are given below. LOD significance threshold were determined on the basis of 1000 permutations at a significance level ofP< 0.05