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Table 7 Glycosyl hydrolase families involved in chitin/chitosan and β-1,3 glucan hydrolysis that are expanded in mycoparasitic Trichoderma species

From: Comparative genome sequence analysis underscores mycoparasitism as the ancestral life style of Trichoderma

   Glycosyl hydrolase family  
   Chitin/chitosana ß-glucana Total ß-glucanb
  Taxonomy GH18 GH75 GH17 GH55 GH64 GH81 217
Trichoderma atroviride S 29 5 5 8 3 2 18
Trichoderma virens S 36 5 4 10 3 1 18
Trichoderma reesei S 20 3 4 6 3 2 15
Pezizomycota         
   Nectria haematococca S 28 2 6 5 2 1 14
   Fusarium graminearum S 19 1 6 3 2 1 12
   Neurospora crassa S 12 1 4 6 2 1 13
   Podospora anserina S 20 1 4 7 1 1 13
   Magnaporthe grisea S 14 1 7 3 1 2 13
   Aspergillus nidulans E 19 2 5 6 0 1 12
   Aspergillus niger E 14 2 5 3 0 1 9
   Penicillium chrysogenum E 9 1 5 3 2 1 11
   Tuber melanosporum P 5 1 4 2 0 3 9
Other ascomycetes         
   Saccharomyces cerevisiae SM 2 0 4 0 0 2 6
   Schizosaccharomyces pombe SS 1 0 1 0 0 1 2
Basidiomycota         
   Phanerochaete chrysosporium A 11 0 2 2 0 0 4
   Laccaria bicolor A 10 0 4 2 0 0 6
   Postia placenta A 20 0 4 6 0 0 10
  1. aMain substrates for the respective enzyme families. bNumber of all enzymes that can act on ß-glucan as a substrate. Taxonomy abbreviations: S, Sordariomycetes; E, Eurotiomycetes; P, Pezizomycetes; S, Saccharomycetes; SS, Schizosaccharomycetes; A, Agaricomycetes. The bold numbers indicate glycosyl hydrolase (GH) families that have a statistically significant expansion in Trichoderma (P < 0.05) or Ta and Tv (GH18). This support was obtained only when N. haematococca and T. melanosporum were not included in the analysis of GH18 and GH81, respectively.