Diversity of Mobile Genetic Elements in the Mitogenomes of Closely Related Fusarium culmorum and F. graminearum sensu stricto Strains and Its Implication for Diagnostic Purposes

Frontiers in Microbiology
Tomasz KulikAnna Baturo-Cieśniewska

Abstract

Much of the mitogenome variation observed in fungal lineages seems driven by mobile genetic elements (MGEs), which have invaded their genomes throughout evolution. The variation in the distribution and nucleotide diversity of these elements appears to be the main distinction between different fungal taxa, making them promising candidates for diagnostic purposes. Fungi of the genus Fusarium display a high variation in MGE content, from MGE-poor (Fusarium oxysporum and Fusarium fujikuroi species complex) to MGE-rich mitogenomes found in the important cereal pathogens F. culmorum and F. graminearum sensu stricto. In this study, we investigated the MGE variation in these latter two species by mitogenome analysis of geographically diverse strains. In addition, a smaller set of F. cerealis and F. pseudograminearum strains was included for comparison. Forty-seven introns harboring from 0 to 3 endonucleases (HEGs) were identified in the standard set of mitochondrial protein-coding genes. Most of them belonged to the group I intron family and harbored either LAGLIDADG or GIY-YIG HEGs. Among a total of 53 HEGs, 27 were shared by all fungal strains. Most of the optional HEGs were irregularly distributed among fungal strains/species indica...Continue Reading

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Citations

Jan 20, 2021·Molecular Plant-microbe Interactions : MPMI·Xiaoliang ShanZhilin Yuan
Oct 10, 2021·Molecular Plant-microbe Interactions : MPMI

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Datasets Mentioned

BETA
MT036635-757
CBS
110268

Methods Mentioned

BETA
PCR

Software Mentioned

Geneious Prime
NOVOPlasty
blastP
InterPro
MFannot
BLAST
ITS
SE
- Search
Mega X

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