Analysis of P450 gene duplications and gene-structure (introns) in P450 families enriched in the basidiomycete species, <i>Phanerochaete chrysosporium</i>, <i>Phanerochaete carnosa</i>, <i>Agaricus bisporus</i>, <i>Ganoderma</i> sp., <i>Postia placenta</i>, and <i>Serpula lacrymans</i>.

aScaffolds and P450s present on the scaffold were separated by commas. For more information on tandem gene arrangements in scaffold, see figures. bFor each P450 family the minimum and maximum number (min-max) of introns observed in member P450s (≥400 amino acid length) were presented. A number of P450s showing the same number of introns in their gene-structure (P/I) are also presented in the table. Abbreviations: FA, Family is absent in the fungus; NA, not applicable owing to the presence of single or double copies of P450 genes and P450s with short amino acid length.