Complete chloroplast genome sequences of two Amomum species (Zingiberaceae)

Abstract

Amomum tsao-ko and Amomum paratsaoko are well known medicinal and edible plants with a strong fragrance and flavour in China. Here, we have sequenced the two complete chloroplast genomes of Amomum tsao-ko and Amomum paratsaoko, which are 163,612 bp and 163,487 bp in length, respectively, and exhibited LSC and SSC regions separated by a pair of inverted repeat regions. The cp genome of A. tsao-ko has 120 annotated genes, including 82 protein-coding genes, while A. paratsaoko has 121 annotated genes, including 83 protein-coding genes. Both cp genomes contained 30 tRNA genes and 8 rRNA genes. Phylogenetic analysis using a total chloroplast genome DNA sequence of 28 species revealed a close relationship between A. tsao-ko and A. paratsaoko with 100% bootstrap value.

Genome Sequencing of Amomum tsao-ko Provides Novel Insight Into Its Volatile Component Biosynthesis

“…At present, however, only a few Zingiberaceae genomes have been reported, e.g., Zingiber officinale and Curcuma longa ( Chakraborty et al, 2021 ; Li et al, 2021 ). Furthermore, within the Amomum genus, only a limited number of chloroplast genomes have been described ( Zhang et al, 2019 ; Yang L. et al, 2020 ). The lack of whole-genome data has severely impeded our understanding of essential oil biosynthesis in A. tsao-ko .…”