The complete chloroplast genome of Primula vialii (Primulaceae), an ornamental plant

Primula vialii Delavay ex Franch. (1905) is an alpine species with an ornamental value. In this study, we sequenced, assembled, and annotated the chloroplast genome of P. vialii. The results showed that it was a double-stranded, closed circular DNA with 154,897 bp in length, comprising a small single-copy (SSC) region of 17,766 bp, a large single-copy (LSC) region of 85,379 bp and a pair of inverted repeat (IR) regions of 25,876 bp. A total of 113 unique genes were annotated, including 79 protein-coding genes, 30 tRNA genes, and 4 rRNA genes. The phylogenetic analysis revealed that P. vialii is closely related to Primula flaccida. The cp genomic data will be useful for systematics and evolutionary studies of Primula.

香海仙报春（Primula vialii Delavay ex Franch.，1905）是一种具有观赏价值的高山物种。本研究对该物种的叶绿体基因组进行了测序、组装与注释。结果显示，其基因组为双链闭合环状DNA分子，全长154897 bp，包含长17766 bp的小单拷贝（small single-copy, SSC）区、长85379 bp的大单拷贝（large single-copy, LSC）区，以及一对长25876 bp的反向重复（inverted repeat, IR）区。共注释得到113个独特基因，其中包括79个蛋白编码基因、30个转运RNA（transfer RNA, tRNA）基因以及4个核糖体RNA（ribosomal RNA, rRNA）基因。系统发育分析表明，香海仙报春与软叶报春（Primula flaccida）亲缘关系密切。该叶绿体基因组数据将对报春属的系统学与进化研究具有重要参考价值。