Fig. 2

Phylogenetic analysis of FvXTH full-length proteins and other XTH proteins. More than one hundred plant XTH sequences were aligned with the FvXTH protein sequences. The numbers at each fork of the tree indicate the number of times (expressed as percentage) that the group of genes was clustered together in the 100 bootstrap replicates. The numbers of sequences from each taxon were 33 from Arabidopsis thaliana (At), 2 from Fragaria x ananassa (Fa), 2 from Fragaria chiloensis (Fc), 12 from Malus domestica (Md), 16 from Oryza sativa (Os), 1 from Carica papaya (Cp), 16 from Solanum lycopersicum (Sl), 1 from Vitis vinifera (Vv), 13 from Populus tremula x Populus tremuloides (Ptt), 1 from Populus trichocarpa (Pt), 1 from Litchi chinensis (Lc), 1 from Tropaeolum majus (Tm), and 2 bacterial glucanases as external outliers (1GBG, 2AYH). (Genbank accession numbers are listed in Additional file 2: Table S2)