Fig. 4: Tissue-specific expression of putative lignin and cellulose biosynthesis pathway genes identified through phylogenetic classification.

No more than five of the most highly expressed genes are shown in roots (R), leaves (L), and xylem (X) if there are more than five homologous genes that encode the same enzyme. Expression levels were RPKMs generated from RNA-seq experiments on 3-year-old B. platyphylla trees grown in the field, and each was averaged from three replicates