Uncovering Diagnostic Value of Mitogenome for Identification of Cryptic Species Fusarium graminearum Sensu Stricto .

Autor:	Wyrębek J; Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland., Molcan T; Department of Bioinformatics, Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Warsaw, Poland., Myszczyński K; Molecular Biology Laboratory, Institute of Animal Reproduction and Food Research, Polish Academy of Sciences, Olsztyn, Poland., van Diepeningen AD; Biointeractions & Plant Health, Wageningen Plant Research, Wageningen, Netherlands., Stakheev AA; Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, Moscow, Russia., Żelechowski M; Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland., Bilska K; Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland., Kulik T; Department of Botany and Nature Protection, University of Warmia and Mazury in Olsztyn, Olsztyn, Poland.
Jazyk:	angličtina
Zdroj:	Frontiers in microbiology [Front Microbiol] 2021 Aug 31; Vol. 12, pp. 714651. Date of Electronic Publication: 2021 Aug 31 (Print Publication: 2021).
DOI:	10.3389/fmicb.2021.714651
Abstrakt:	Fungal complexes are often composed of morphologically nearly indistinguishable species with high genetic similarity. However, despite their close relationship, they can exhibit distinct phenotypic differences in pathogenicity and production of mycotoxins. Many plant pathogenic and toxigenic fungi have been shown to consist of such cryptic species. Identification of cryptic species in economically important pathogens has added value in epidemiologic studies and provides opportunities for better control. Analysis of mitochondrial genomes or mitogenomics opens up dimensions for improved diagnostics of fungi, especially when efficient recovery of DNA is problematic. In comparison to nuclear DNA, mitochondrial DNA (mtDNA) can be amplified with improved efficacy due to its multi-copy nature. However, to date, only a few studies have demonstrated the usefulness of mtDNA for identification of cryptic species within fungal complexes. In this study, we explored the value of mtDNA for identification of one of the most important cereal pathogens Fusarium graminearum sensu stricto ( F.g. ). We found that homing endonucleases (HEGs), which are widely distributed in mitogenomes of fungi, display small indel polymorphism, proven to be potentially species specific. The resulting small differences in their lengths may facilitate further differentiation of F.g. from the other cryptic species belonging to F. graminearum species complex. We also explored the value of SNP analysis of the mitogenome for typing F.g. The success in identifying F.g. strains was estimated at 96%, making this tool an attractive complement to other techniques for identification of F.g. Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. (Copyright © 2021 Wyrębek, Molcan, Myszczyński, van Diepeningen, Stakheev, Żelechowski, Bilska and Kulik.)
Databáze:	MEDLINE
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