The complete mitochondrial genome of Osmanthus fragrans (Lamiales, Oleaceae) from China

Osmanthus fragrans is a well-known ornamental tree with high medicinal and edible values. In this study, the complete mitochondrial genome sequence of O. fragrans was assembled, annotated, and analyzed using phylogenomic methods. The complete mitochondrial genome of O. fragrans was 563,202 bp in length and displays an overall GC content of 44.58%. Sixteen chloroplast-derived segments with an average length of 1260 bp were identified. The complete mitochondrial genome contained 74 genes in total, including 44 protein-coding, three rRNA, and 27 tRNA genes, among which seven protein-coding and six tRNA genes were chloroplast-derived. Phylogenetic analysis showed that O. fragrans was closely related to Chionanthus rupicola within the Oleaceae. This study could provide genomic resources for a better understanding of O. fragrans and further studies on the evolution of Oleaceae.