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Characterization of the Complete Chloroplast Genome and Evolutionary Position of Clematis tomentella

文献类型： 外文期刊

作者： Liu, Wangsuo 1 ; Wang, Zhanjun 2 ; Tian, Ying 2 ; Ji, Bo 2 ;

作者机构： 1.Ningxia Tech Coll Wine & Desertificat Prevent, Yinchuan 750199, Ningxia, Peoples R China

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

3.Ningxia Acad Agr & Forestry Sci, Ningxia Key Lab Desertificat Control & Soil & Wate, Yinchuan 750011, Ningxia, Peoples R China

关键词： C. tomentella; complete chloroplast genome; Clematis; gene; phylogenetic analysis

期刊名称：CYTOLOGY AND GENETICS （ 影响因子：0.5； 五年影响因子：0.6 ）

ISSN： 0095-4527

年卷期： 2024 年 58 卷 2 期

页码：

收录情况： SCI

摘要： Clematis tomentella 2001 (Ranunculaceae) is a typical drought-tolerant sand-fixing plant in desert ecosystem in northwest China. To elucidate the phylogenetic status of C. tomentella and its related species, we determined the complete chloroplast (cp) genome and analyzed their interspecific relationships. The result showed that the cp genome of C. tomentella was 159 816 bp in length, including two inverted repeats of 31 045 bp, a large single copy region of 79 535 bp, and a small single copy region of 18 191 bp. 136 genes were annotated across the whole cp genome, including 92 protein-coding genes, 8 rRNA genes, and 36 tRNA genes, as well as the GC content accounted for 38%. Crucially, we found that the regions of psbE-petL, trnG_UCC-atpA, ndhF-rpl32, and rps8-infA were highly divergent, which could be marked as DNA barcodes for the identification of C. tomentella in Ranunculaceae. A maximum likelihood phylogenetic tree revealed that C. tomentella was closely related to C. fruticosa. Our results provide the references and implications for the phylogenetic study of Clematis in Ranunculaceae in the future.

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