Fig. 1

Phylogenetic analysis of putative cotton fiber xylan synthesis-associated proteins and 35 Arabidopsis homologs. a Phylogenetic tree of Arabidopsis and cotton GT43 family members. Several xylan-associated Arabidopsis GT43 members and their cotton homologs are highlighted in different color. b Phylogenetic tree of Arabidopsis and cotton GT47 family members. Several xylan-associated Arabidopsis GT47 members and their cotton homologs are highlighted in different color. c Phylogenetic tree of Arabidopsis and cotton DUF579-domain containing proteins. Several xylan-associated Arabidopsis DUF579-domain containing proteins and their cotton homologs are highlighted in different color. d Phylogenetic tree of Arabidopsis and cotton GT61 family members. e Phylogenetic tree of Arabidopsis and cotton TBL, RWA and AXY9 family members. The cotton TBL family comprises 100 genes in three subclades, with 9 additional genes homologous to reduced wall O-acetylation (RWA) and 6 related to Arabidopsis xyloglucan acetyl transferase9 (AXY9). f Phylogenetic tree of Arabidopsis and cotton GT8 family members. Several xylan-associated Arabidopsis GT8 members and their cotton homologs are highlighted in different color