Resolving Phylogenetic Relationships Within the Trichophyton mentagrophytes Complex: A RADseq Genomic Approach Challenges Status of ‘Terbinafine-Resistant’ Trichophyton indotineae as Distinct Species

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388971%3A_____%2F25%3A00619004" target="_blank" >RIV/61388971:_____/25:00619004 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/25:10497843

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/10.1111/myc.70050" target="_blank" >https://onlinelibrary.wiley.com/doi/10.1111/myc.70050</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/myc.70050" target="_blank" >10.1111/myc.70050</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Resolving Phylogenetic Relationships Within the Trichophyton mentagrophytes Complex: A RADseq Genomic Approach Challenges Status of ‘Terbinafine-Resistant’ Trichophyton indotineae as Distinct Species

Popis výsledku v původním jazyce

Background The Trichophyton mentagrophytes complex encompasses common dermatophytes causing superficial mycoses in humans and animals. The taxonomy of the complex is unstable, with conflicting views on the species status of some taxa, particularly T. indotineae and T. interdigitale. Due to the presence of intermediate genotypes, neither MALDI-TOF MS nor ITS rDNA sequencing can accurately distinguish all taxa in the complex, potentially contributing to clinical misdiagnoses. Objectives This research resolves phylogenetic relationships within the T. mentagrophytes complex. Based on these data, the taxonomical recommendations are suggested. Methods In order to resolve the phylogenetic relationship of the T. mentagrophytes complex, we employed Restriction Site-Associated DNA Sequencing (RADseq) to produce a high-resolution single nucleotide polymorphism (SNP) dataset from 95 isolates. The SNP-based analyses indicated the presence of two major genetic clusters corresponding to T. mentagrophytes (including T. indotineae) and T. interdigitale. Results Our results challenge the species status of T. indotineae because of insufficient genetic divergence from T. mentagrophytes. Therefore, we propose designating T. indotineae as T. mentagrophytes var. indotineae (or T. mentagrophytes ITS genotype VIII) to avoid further splitting of the complex and taxonomic inflation. Although T. interdigitale shows clearer genetic differentiation, its separation is incomplete and identification of some isolates is ambiguous when using routine methods, leading us to consider it a variety as well: T. mentagrophytes var. interdigitale. Conclusions We recommend using T. mentagrophytes as the overarching species name for all complex isolates. Where precise molecular identification is possible, the use of variety ranks is encouraged. Since identical resistance mechanisms are not specific to any genotype or dermatophyte species, identifying antifungal resistance is more important than differentiating closely related genotypes or populations.

Název v anglickém jazyce

Resolving Phylogenetic Relationships Within the Trichophyton mentagrophytes Complex: A RADseq Genomic Approach Challenges Status of ‘Terbinafine-Resistant’ Trichophyton indotineae as Distinct Species

Popis výsledku anglicky

Background The Trichophyton mentagrophytes complex encompasses common dermatophytes causing superficial mycoses in humans and animals. The taxonomy of the complex is unstable, with conflicting views on the species status of some taxa, particularly T. indotineae and T. interdigitale. Due to the presence of intermediate genotypes, neither MALDI-TOF MS nor ITS rDNA sequencing can accurately distinguish all taxa in the complex, potentially contributing to clinical misdiagnoses. Objectives This research resolves phylogenetic relationships within the T. mentagrophytes complex. Based on these data, the taxonomical recommendations are suggested. Methods In order to resolve the phylogenetic relationship of the T. mentagrophytes complex, we employed Restriction Site-Associated DNA Sequencing (RADseq) to produce a high-resolution single nucleotide polymorphism (SNP) dataset from 95 isolates. The SNP-based analyses indicated the presence of two major genetic clusters corresponding to T. mentagrophytes (including T. indotineae) and T. interdigitale. Results Our results challenge the species status of T. indotineae because of insufficient genetic divergence from T. mentagrophytes. Therefore, we propose designating T. indotineae as T. mentagrophytes var. indotineae (or T. mentagrophytes ITS genotype VIII) to avoid further splitting of the complex and taxonomic inflation. Although T. interdigitale shows clearer genetic differentiation, its separation is incomplete and identification of some isolates is ambiguous when using routine methods, leading us to consider it a variety as well: T. mentagrophytes var. interdigitale. Conclusions We recommend using T. mentagrophytes as the overarching species name for all complex isolates. Where precise molecular identification is possible, the use of variety ranks is encouraged. Since identical resistance mechanisms are not specific to any genotype or dermatophyte species, identifying antifungal resistance is more important than differentiating closely related genotypes or populations.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10606 - Microbiology

Projekt

<a href="/cs/project/NU21-05-00681" target="_blank" >NU21-05-00681: Důsledky hybridizace pro šíření antifungálních rezistencí a vymezení druhů u patogenních hub: modelová studie u rodu Aspergillus a Trichophyton</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mycoses

ISSN

0933-7407

e-ISSN

1439-0507

Svazek periodika

68

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

14

Strana od-do

e70050

Kód UT WoS článku

001459517100001

EID výsledku v databázi Scopus

2-s2.0-105002062052