The complete chloroplast genome of Pseudostellaria davidii (franch.) Pax, 1934

Pseudostellaria davidii (Franch.) Pax belongs to subseries distancs of Pseudostellaria (Caryophyllaceae), and is mainly distributed in north-eastern Asia. The complete chloroplast (cp) genome of P. davidii was assembled and annotated for the first time in this study. The cp genome of P. davidii is 149,732 bp in length with the GC content of 36.57%, and it consists of four subregions: a large single-copy (LSC) region of 81,156 bp, a small single-copy (SSC) region of 16,894 bp and two inverted repeats (IR) regions of 25,841 bp each. The cp genome of P. davidii encodes a total of 111 unique genes, which are 77 protein-coding genes, four rRNA genes, and 30 tRNA genes. The results of phylogenetic analysis strongly suggested that Pseudostellaria was a monophyletic group and P. davidii forms an independent sister clade to other species of Pseudostellaria.

大卫假繁缕（Pseudostellaria davidii (Franch.) Pax）隶属于石竹科（Caryophyllaceae）假繁缕属（Pseudostellaria）的distancs亚系，主要分布于东北亚地区。本研究首次组装并注释了该物种的完整叶绿体（chloroplast, cp）基因组。该叶绿体基因组全长149732 bp，GC含量为36.57%，包含四个亚区域：长81156 bp的大单拷贝区域（large single-copy, LSC）、长16894 bp的小单拷贝区域（small single-copy, SSC），以及两个各长25841 bp的反向重复区域（inverted repeats, IR）。该基因组共编码111个独特基因，包括77个蛋白质编码基因、4个核糖体RNA（ribosomal RNA, rRNA）基因与30个转运RNA（transfer RNA, tRNA）基因。系统发育分析结果强烈支持假繁缕属为单系群，且大卫假繁缕与该属其余物种构成独立的姊妹支系。