Table 2

Phylogenetic distribution clustering of glycoside hydrolase families and functional typesa

CategoryTraitDPrandomPBrownianACSτD
GH family (hydrolase only)GH10.02600.2925.6070.020
GH30.07900.0497.1800.024
GH5−0.01500.6093.8650.010
GH6−0.01600.5781.6030.005
GH80.01600.4402.0080.009
GH9−0.35200.9983.7720.009
GH12−0.28000.9534.2680.009
GH440.41200.12210.028
GH450.4970.1570.30310.033
GH480.40900.0971.1990.011
FunctionBcsZ0.13500.0332.1560.005
β-Glucosidase0.11100.03612.1630.034
Cellulase−0.00600.5664.3550.013
  • a Significance of clustering is based on the Fritz and Purvis index (D) (38) and compared to the probability that the considered trait will follow “random” or “Brownian” evolution. Average cluster size (ACS) and depth (τD, in 16S rRNA sequence distance) were estimated using consenTRAIT (23).