Characterization of the complete chloroplast genome of and its phylogenomic inference in plantaginaceae.

, which is an annual flowering plant in the plantain family Plantaginaceae, has commonly used as a Chinese herbal medicine to treat malaria in China. Here, the complete plastome of was successfully assembled based on genome skimming sequencing. The plastome of was 149,386 bp in length, comprising a pair of inverted repeats (IR; 24,946 bp) separated by a large single-copy (LSC) region (82,004 bp) and a small single-copy (SSC) region (17,490 bp). The plastid genome encoded 113 unique genes, consisting of 79 protein-coding genes, 30 tRNA genes, and four rRNA genes, with 19 duplicated genes in the IR regions. Six plastid hotspot regions (H-A, K-16, I-2, F-32, A-D and 15-1) were identified within . Phylogenetic analysis showed that the representative species from was monophyletic. and formed a maximum clade, followed by sister to .