Reexamination of phylogeny in dark tea: Characteristics of the mitochondrial genome.

To enhance our understanding of , an important functional microorganism, the characteristics of its mitochondrial genome were analyzed and compared with related species. The mitochondrial genome of was determined to be 77,649 bp in length, with 15 protein-coding regions. Notably, its length surpassed that of the other species, primarily attributable to the intron length. Gene order exhibited significant variations, with greater conservation observed in the genus compared to . Phylogenetic tree analyses indicated that the genera and are closely related but monophyletic. Furthermore, the phylogenetic tree constructed based on protein-coding genes effectively distinguished all strains with high branching confidence. This approach provides a robust reflection of the evolutionary relationship between and its related species, offering potential for the development of molecular markers suitable for and .