Mitogenome characterization and phylogenetic analysis of <i>Phallus dongsun</i> (Phallaceae): an edible and medicinal fungus in the Phallaceae family

The mitogenome of <i>Phallus dongsun</i> comprises a circular DNA molecule of 59,243 bp with a GC It is a 59,243 bp circular DNA molecule with 25.74% GC content, containing 14 PCGs, 2 rRNAs, 25 tRNAs, and 15 introns. It features 19 SSRs and a codon bias toward A/T endings. All protein-coding genes show strong purifying selection (avg. Ka/Ks=0.049). Phylogenomic analysis reveals a well-supported clade with <i>P. indusiatus</i> and <i>P. echinovolvatus</i> as sisters. Incongruence with nuclear trees is attributed to past misidentification of Chinese specimens. This first complete mitogenome for <i>P. dongsun</i> provides a key genomic resource for future phylogenetic studies in <i>Phallus</i>.