Complete chloroplast genome sequence of green foxtail (Setaria viridis), a promising model system for C₄ photosynthesis

Abstract

The complete chloroplast genome of green foxtail (Setaria viridis), a promising model system for C₄ photosynthesis, is first reported in this study. The genome harbors a large single copy (LSC) region of 81 016 bp and a small single copy (SSC) region of 12 456  bp separated by a pair of inverted repeat (IRa and IRb) regions of 22 315 bp. GC content is 38.92%. The proportion of coding sequence is 57.97%, comprising of 111 (19 duplicated in IR regions) unique genes, 71 of which are protein-coding genes, four are rRNA genes, and 36 are tRNA genes. Phylogenetic analysis indicated that S. viridis was clustered with its cultivated species S. italica in the tribe Paniceae of the family Poaceae. This newly determined chloroplast genome will provide valuable genetic resources to assist future studies on C₄ photosynthesis in grasses.

• Chloroplast genome
• phylogenomic analysis
• Setaria viridis

Declaration of interest

The authors report no conflicts of interest. The authors alone are responsible for the content and writing of the paper.