Characterization of the complete chloroplast genome of Amomum longiligulare (Zingiberaceae)

Abstract Amomum longiligulare T. L. Wu (Zingiberaceae) is a herbaceous perennial grown in Hainan Province, China, which is an important medicinal plant used for the improvement of gastrointestinal motility. The complete chloroplast genome of A. longiligulare was assembled based on next-generation sequencing. The plastome was a quadripartite circular with 16,3608？bp in length, including two inverted repeat (IR, 22,696？bp) regions, one large single-copy region (LSC) and one small single-copy region (SSC) of 88,680？bp and 29,536？bp, respectively. The chloroplast genome contained 123 genes, including 85 protein-coding genes, 30 tRNA genes, and 8 rRNA genes. The overall GC content of the whole genome is 36.1%. Phylogenetic analysis strongly supported A. longiligulare and its congeneric species, A. kravanh and A. compactum, as sister group with 100% bootstrap value