Complete Chloroplast Genome Sequence of Helps to Elucidate Evolutionary Relationships with Related Species of Asteraceae.

DC. possesses both edible and medicinal properties and is widely distributed throughout China. In this study, the complete cp genome of was sequenced and assembled. The total length of the complete s cp genome was 151,977 bp, including an LSC region of 84,553 bp, SSC region of 18,138 bp, and IR region of 24,643 bp. Sequence analyses revealed that the cp genome encoded 132 genes, including 87 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The GC content was 37.6%. One hundred mononucleotide microsatellites, 4 dinucleotide microsatellites, 67 trinucleotide microsatellites, 4 tetranucleotide microsatellites, and 1 long repeat were identified. The SSR frequency of the LSC region was significantly greater than that of the IR and SSC regions. In total, 175 SSRs and highly variable regions were recognized as potential cp markers. By analyzing the IR/LSC and IR/SSC boundaries, structural differences between . and 6 other species were detected. According to phylogenetic analyses, was most closely related to . and . Overall, this study provides complete cp genome resources for that will be beneficial for identifying potential molecular markers and evolutionary patterns of and its closely related species.