Fig. 4: Maximum likelihood phylogenetic tree of KNOX proteins derived from amino acid alignment.
From: Ectopic cambia in wisteria vines are associated with the expression of conserved KNOX genes
The phylogenetic tree includes members of KNOX genes obtained from a tBLASTx search, encompassing seed plants from 20 families, 33 genera, and 38 species, including 11 species that develop ectopic cambia. KNOX are divided into three classes: KNOX1 (branches in green), KNOX2 (branches in blue), and KNATM (branches in magenta). These classes are further divided into clades corresponding to individual genes named after Arabidopsis thaliana orthologs, as indicated in bold (in black). All recovered transcript clusters annotated for KNOX genes are likewise highlighted in bold colors corresponding to their identified clades (KNOX1, KNOX2, or KNATM). The tree is rooted in a member of the BEL1 gene family. Circles indicate angiosperm (yellow), eudicots (blue), Poales (gray), and Fabaceae-specific (magenta) duplications.
