The chloroplast genome of Spiraea thunbergii (Rosaceae)

Spiraea thunbergii (S. thunbergia) is a very common ornamental shrub in the garden, with important horticultural and economic value. In this study, we assembled the complete chloroplast (cp) genome of S. thunbergia into a typical quadripartite structure. The genome size and GC content of the S. thunbergia cp genome are 155,922 bp and 36.76%, respectively. It contains 84 protein-coding genes, 37 tRNA genes, and 8 rRNA genes. The phylogenetic tree supported that S. thunbergii is closely related to Spiraea mongolica in the Rosaceae family. The study will provide significant genomic resource for elucidating the phylogenetic relationship of Spiraea.