The complete chloroplast genome sequence of Borago officinalis Linn. (Boraginaceae) and its phylogenetic analysis

摘要

Borago officinalis is a kind of vegetable and traditional medicinal herb in the Mediterranean region, and now it has spread many areas around the world. In this study, we sequenced a complete chloroplast (cp) genome sequence of B. officinalis to investigate its phylogenetic relationship with other species. The whole cp genome of B. officinalis is 149,835?bp in length with 37.82% overall GC content, including a large single-copy (LSC) region of 78,840?bp and a small single-copy (SSC) region of 16,967?bp, which are separated by a pair of inverted repeats (IRs) of 27,014?bp. The cp genome contains 110 genes, including 76 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. The phylogenetic analysis based on cp genome sequences showed that B. officinalis is closely related to Antirhea chinensis , Mitragyna speciosa and Neolamarckia cadamba. .