Fig. 3From: Genetic markers and tree properties predicting wood biorefining potential in aspen (Populus tremula) bioenergy feedstockPairwise genetic correlations between 58 traits in SwAsp trees. The vertical sidebar represents the four categories of traits: wood chemical composition (red), wood structure and anatomy (yellow), growth (green) and wood saccharification (black). Six analysed SwAsp traits were omitted from the correlation analyses due to very low heritabilities. Trait abbreviations are defined in Additional file 1Back to article page