The complete chloroplast genome and phylogenetic analysis of <i>Rubus sumatranus</i> Miq 1861 (Roseaceae)

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.野生悬钩子属物种苏门答腊悬钩子（*Rubus sumatranus* Miq 1861）是培育耐热栽培品种的极具潜力的种质资源。其完整叶绿体基因组全长155935个碱基对（bp），具有典型的四分体结构：包含18729 bp的小单拷贝区、85662 bp的大单拷贝区，以及两段各长25772 bp的反向重复序列。本研究共鉴定出130个基因，其中包括86个蛋白编码基因、36个转运RNA（transfer RNA, tRNA）基因以及8个核糖体RNA（ribosomal RNA, rRNA）基因。基于叶绿体基因组构建的最大似然系统发育树显示，隶属于树莓亚属（*Idaeobatus*）的苏门答腊悬钩子与巴托莓亚属（*Batothamnus*）互为姊妹群，这一结果证实了树莓亚属具有多系起源的特性。苏门答腊悬钩子的叶绿体基因组组装结果，有助于深化我们对其进化历史的认知。