Additional file 2: Table S1. of Quantitative trait locus mapping of Populus bark features and stem diameter

Pair-wise estimates of phenotypic correlations calculated as Pearson correlation coefficients between bark texture (BT), diameter (D) and bark thickness (BTh) phenotypes collected from Populus Family 52–124. Note: Specifically, the analysis was done within and between experimental blocks, across years and across sites. Symbols show p-values, where p ≤ 0.05 = *, p ≤ 0.01 = **, p ≤ 0.001 = ***, and p ≤ 0.0001 = ****. White cells are correlations between the same traits across years and sites; red cells are correlations between diameter and bark texture; green cells are correlations between bark thickness and bark texture; blue cells are correlations between bark thickness and diameter. (XLSX 158 kb)