The complete chloroplast genome sequence of Acorus calamus (Acoraceae) from Fujian, China

Abstract

Acorales comprises the basal lineage of all extant monocots and has important linkage to early angiosperms and dicots. In this study, we reported the complete chloroplast genome of Acorus calamus, one of the two species of Acorales. The whole genome was 152,876 bp in length, consisting of a pair of inverted repeats (IR 25,661 bp), a large single-copy region (LSC 83,290 bp), and a small single-copy region (SSC 18,264 bp). The complete genome contained 129 genes, including 84 protein-coding genes, 37 tRNA, and 8 rRNA genes. The overall GC content of the whole genome was 38.7%. A maximum-likelihood phylogenetic analysis showed that A. calamus is sister to A. calamus which was collected in Germany. The complete chloroplast genome of A. calamus will help improve and integrate the existing genome data of monocots and provide insights into the phylogenetic relationship among basal angiosperms, monocots and dicots.

Keywords

• acorus calamus
• chloroplast genome
• phylogenetic analysis