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The complete chloroplast genome sequence of Vincetoxicum mongolicum (Apocynaceae), a perennial medicinal herb

文献类型： 外文期刊

作者： Liu, Wangsuo 1 ; Wang, Zhanjun 1 ; Tian, Ying 1 ; Ji, Bo 1 ;

作者机构： 1.Ningxia Acad Agr & Forestry Sci, Inst Forestry & Grassland Ecol, Yinchuan, Ningxia, Peoples R China

2.Ningxia Tech Coll Wine & Desertificat Prevent, Dept Hydraul Engn, Yinchuan, Peoples R China

3.Ningxia Acad Agr & Forestry Sci, Ningxia Key Lab Desertificat Control & Soil & Wate, Yinchuan, Ningxia, Peoples R China

4.Ningxia Acad Agr & Forestry Sci, Inst Forestry & Grassland Ecol, Yinchuan 750011, Peoples R China

关键词： Vincetoxicum mongolicum; complete chloroplast genome; Apocynaceae; comparative analysis; phylogenetic tree

期刊名称：GENETICS AND MOLECULAR BIOLOGY （ 影响因子：2.1； 五年影响因子：2.2 ）

ISSN： 1415-4757

年卷期： 2023 年 46 卷 2 期

页码：

收录情况： SCI

摘要： Vincetoxicum mongolicum Maxim. (1876), is a perennial medicinal herb, widely distributed in the Loess Plateau of China. Here, we sequenced, assembled, and annotated the complete chloroplast (cp) genome of V. mongolicum, and compared the highly variable gene regions and phylogenetic positions between V. mongolicum and other related species. Results showed that the complete cp genome of V. mongolicum was 160,157 bp in length, containing a large single copy (LSC) region of 91,263 bp, a pair of inverted repeats (IR) region of 23,892 bp, and a small single copy (SSC) region of 21,110 bp. The GC content accounts for 37.8%, and we annotated 131 single genes, which include 86 protein-coding genes, 8 rRNA genes, and 37 tRNA genes. By comparing and analyzing the variable region of the cp gene of V. mongolicum and other Vincetoxicum, we found that the variable sequences of rpoC1-rpoB, ycf4-cemA, ndhF, ndhF-rpl32, and rpl32-ccsA fragments were highly significant, which could be targeted as the DNA barcodes for evidence of V. mongolicum and its relatives in Apocynaceae. Maximum-likelihood (ML) phylogenetic tree analysis elucidated that V. mongolicum was sister to V. pycnostelma with strong support. Our results provide useful information for future phylogenetic studies and plastid super-barcodes of the family Apocynaceae.

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