Abstract
Onosma paniculatum is a medicinal plant commonly used in Yunnan and its adjacent regions, China. In the present study, we sequenced the complete chloroplast (cp) genome sequence of O. paniculatum to investigate the phylogenetic relationship in the Tubiflorae. The total length of the chloroplast genome was 151,198 bp, with 37.4% overall GC content and exhibited typical quadripartite structure, a pair of IRs (inverted repeats) of 25,889 bp was separated by a small single copy (SSC) region of 17,274 bp and a large single copy (LSC) region of 82,146 bp. The cp genome was composed of 113 genes, including 79 protein coding genes, 30 tRNA genes, and 4 rRNA genes. The phylogenetic analysis indicated that Boraginaceae was closely related to Convolvulaceae and Solanaceae in Tubiflorae.