Abstract

The apiaceous species Centella asiatica (Linnaeus) Urban is attractive not only to pharmaceutical researchers for its versatile medicinal uses, but also to botanists for its phylogenetic significance. We acquired its whole chloroplast genome (CP) through genome skimming. The CP genome ofCentella asiatica was 154,771 bp in length, including a large single-copy (LSC) region with 86176 bp, a small single copy (SSC) region with 18107 bp, and a pair of inverted repeats (IR) regions with 25,343 bp. The whole GC content of the CP genome was 62.3%. Phylogenomic analysis revealed that Centella asiatica formed a separate clade sister to Saniculoideae and Apioideae species in the family Apiaceae. The work provides beneficial data for following researches on the genetic variation, species identification, phylogeny, and classification of Centella.

摘要

该apiaceous种积雪草（林奈）城市不仅是医药研究者它的多功能医疗用途，也植物学家对其进化意义的吸引力。我们通过略读基因组获得了整个叶绿体基因组（CP）。亚洲积雪草的CP基因组长度为154,771 bp，包括一个大的单拷贝（LSC）区，长86176 bp，一个小的单拷贝（SSC）区，长18107 bp，以及一对反向重复区（IR），长25,343 bp。CP基因组的整个GC含量为62.3％。系统学分析表明积雪草在pi科中形成了Saniculoideae和Apioideae种的一个进化枝姐妹。这项工作为后续研究积雪草的遗传变异，物种鉴定，系统发育和分类提供了有益的数据。