The complete chloroplast genome and phylogenetic analysis of <i>Rubus sumatranus</i> Miq 1861 (Roseaceae)
Abstract
The wild raspberry species <i>Rubus sumatranus</i> Miq 1861 is a promising resource for breeding thermotolerant cultivars. Its complete chloroplast genome spans 155,935 base pairs (bp), featuring the classic quadripartite structure: an 18,729 bp small single-copy region, an 85,662 bp large single-copy region, and two 25,772 bp inverted repeats. A total of 130 genes were identified, including 86 protein-coding, 36 tRNA genes, and 8 rRNA genes. A maximum likelihood phylogenetic tree based on chloroplast genomes shows that <i>R. sumatranus</i>, within the subgenus <i>Idaeobatus</i>, is sister to the subgenus <i>Batothamnus</i>. This confirms the polyphyletic nature of the subgenus <i>Idaeobatus</i>. The chloroplast genome assembly of <i>R. sumatranus</i> enhances our understanding of its evolutionary history.