The taxonomy of the dermatophytes has been revisited using a novel multilocus phylogenetic approach, and several neotypes and reference strains have been assigned for Trichophyton species. Single gene sequencing, that is the ITS region, for identification of highly related species T. mentagrophytes/T. interdigitale, warrant reassessment. The sequence database (Westerdijk and NCBI) needs to be updated as several incorrect/obsolete entries of reference and neotype strains of T. interdigitale/T. mentagrophytes hampers correct identification of this complex.
Keywords: Trichophyton interdigitale/ mentagrophytes; India; multigene phylogeny; tinea corporis; tinea cruris.
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