Phylogenetic analysis of plant-parasitic nematode GHF5 cellulase catalytic domains. Maximum parsimony was used to create a bootstrap consensus tree inferred from 1000 replicates. The percentage of replicate trees in which the associated taxa clustered together in the bootstrap test are shown next to the branches. Placement of Rr-ENG-1 within the tree is indicated by (★). Gr (Globodera rostochiensis), Gt (G. tabacum), Hg (Heterodera glycines), Hs (H. schachtii), Rs (Radopholus similis), Dd (Ditylenchus destructor), Da (D. africanus), Mi (Meloidogyne incognita), Pp (Pratylenchus penetrans).