Genome assembly revealed unique chloroplast structure in Spiraea uratensis, highlighting phylogenetic relationships within Rosaceae.
Spirea uratensis is a shrub plant valued for its ecological and ornamental qualities. In this study, we assembled the complete chloroplast genomes of S. uratensis. The result revealed a 155,876 bp circular structure with typical quadripartite organization: 84,291 bp LSC, 18,893 bp SSC, and two 26,346 bp IRs. The genome contains 132 genes and has 36.8% GC content. Phylogenetic analyses resolved S. uratensis, S. henryi, S. ovalis, S. nipponica, and S. trichocarpa forming a monophyletic group, confirming their close relationship. This study advances understanding of chloroplast evolution in Spirea of Rosaceae.
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