Comparative chloroplast genome analysis of tribe Jasmineae (Oleaceae, Lamiales)

Jasminum L., a genus of Oleaceae, contains different species that are often used in medicinal and industrial fields. Genomic data of Jasminum are essential for elucidating the evolutionary history and mining DNA-based applications. Therefore, in this study, the complete chloroplast genomes of Jasminum nervosum Lour. and Jasminum multiflorum (Burm.f.) Andrews were sequenced and characterized based on the next-generation sequencing method. Consequently, typical quadripartite chloroplast genomes of 162,855 bp and 163,248 bp were completed for J. multiflorum and J. nervosum, respectively. Comparative genomic analysis among chloroplast genomes of tribe Jasmineae revealed different numbers of repeats, inversion of pafI-pafII region, loss of accD, and loss of clpP introns. Phylogenetic analysis revealed the monophyly of five tribes of Oleaceae. J. nervosum was closely related to J. multiflorum formed compared to other Jasminum taxa. The newly completed chloroplast genomes of Jasminum species enlarged the genomic data and provided useful information for further studies on genomic evolution, population genetics, and phylogeny of Oleaceae.