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Background  The ascomycetous family  Chaetomiaceae  (class Sordariomycetes) includes numerous soilborn, saprophytic, endophytic and pathogenic fungi which can adapt to various growth conditions and living niches by providing a broad armory of oxidative and antioxidant enzymes.    Results  We release the 34.7 Mbp draft genome of  Chaetomium cochliodes  CCM F-232 consisting of 6036 contigs with an average size of 5756 bp and reconstructed its phylogeny. We show that this filamentous fungus is closely related but not identical to  Chaetomium globosum  and  Chaetomium elatum . We screened and critically analysed this genome for open reading frames coding for essential antioxidant enzymes. It is demonstrated that the genome of  C. cochliodes  contains genes encoding putative enzymes from all four known heme peroxidase superfamilies including bifunctional catalase-peroxidase (KatG), cytochrome  c  peroxidase (CcP), manganese peroxidase, two paralogs of hybrid B peroxidases (HyBpox), cyclooxygenase, linoleate diol synthase, dye-decolorizing peroxidase (DyP) of type B and three paralogs of heme thiolate peroxidases. Both KatG and DyP-type B are shown to be introduced into ascomycetes genomes by horizontal gene transfer from various bacteria. In addition, two putative large subunit secretory and two small-subunit typical catalases are found in  C. cochliodes . We support our genomic findings with quantitative transcription analysis of nine peroxidase & catalase genes.    Conclusions  We delineate molecular phylogeny of five distinct gene superfamilies coding for essential heme oxidoreductases in  Chaetomia  and from the transcription analysis the role of this antioxidant enzymatic armory for the survival of a peculiar soil ascomycete in various harsh environments.    Electronic supplementary material  The online version of this article (doi:10.1186/s12864-016-3111-6) contains supplementary material, which is available to authorized users.

bmc genomics

Genome sequence of the filamentous soil fungus Chaetomium cochliodes reveals abundance of genes for heme enzymes from all peroxidase and catalase superfamilies