Comparative Mitogenomics Analysis Revealed Evolutionary Divergence among Species Complex (Fungi: ).

The genus consists of obligate parasites that cause ring spot, scab, and leaf blight diseases in higher plant species. We assembled the three complete mitogenomes for the guava fruit ring spot pathogen, . The mitogenomes are circular, with sizes of 38,666 bp, 33,846 bp, and 32,593 bp. The comparative analyses with showed that differs greatly from it in the length of the mitogenomes and the number of introns. Moreover, they showed significant differences in the gene content and tRNAs. The two genera showed little difference in gene skewness and codon preference for core protein-coding genes (PCGs). We compared gene sequencing in the mitogenomes of the order and found large-scale gene rearrangement events, such as gene translocations and the duplication of tRNAs. shows a unique evolutionary position in the phylum constructed in phylogenetic analyses. We also found a more concentrated distribution of evolutionary pressures on the PCGs of in the phylum and that they are under little selective pressure compared to other species and are subjected to purifying selection. This study explores the evolutionary dynamics of the mitogenomes of and provides important support for genetic and taxonomic studies.