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植物研究 ›› 2021, Vol. 41 ›› Issue (6): 896-903.doi: 10.7525/j.issn.1673-5102.2021.06.007

• 研究报告 • 上一篇    下一篇

基于DNA条形码的柳属植物系统发育研究

任伟超1, 徐姣2, 孙伟3, 刘美琦1, 于欣欣1, 王思嘉1, 马伟1()   

  1. 1.黑龙江中医药大学药学院,哈尔滨 150040
    2.黑龙江中医药大学佳木斯学院,佳木斯 154007
    3.中国中医科学院中药研究所,北京 100700
  • 收稿日期:2020-11-13 出版日期:2021-11-20 发布日期:2021-10-29
  • 通讯作者: 马伟 E-mail:88788891@qq.com
  • 作者简介:任伟超(1989—),男,博士研究生,主要从事中药资源开发与利用。
  • 基金资助:
    国家中医药管理局全国中药资源普查项目(GZY-KJS-2018-004);黑龙江中医药大学优秀创新人才领军人才项目(2018RCL09)

Phylogenetic Analysis of DNA Barcoding Sequences in the Genus Salix

Wei-Chao REN1, Jiao XU2, Wei SUN3, Mei-Qi LIU1, Xin-Xin YU1, Si-Jia WANG1, Wei MA1()   

  1. 1.Pharmacy College,Heilongjiang University of Chinese Medicine,Harbin 150040
    2.Jiamusi College,Heilongjiang University of Chinese Medicine,Jiamusi 154007
    3.Institute of Chinese Materia Medica,China Academy of Chinese Medical Sciences,Beijing 100700
  • Received:2020-11-13 Online:2021-11-20 Published:2021-10-29
  • Contact: Wei MA E-mail:88788891@qq.com
  • About author:REN Wei-Chao(1989—),male,doctor,engaged in development and utilization of traditional Chinese medicine resources.
  • Supported by:
    National Chinese Medicine Resources survey Project of the State Administration of Traditional Chinese Medicine(GZY-KJS-2018-004);Outstanding Innovative Talents Leading Talent Project of Heilongjiang University of Traditional Chinese Medicine(2018RCL09)

摘要:

对黑龙江省柳属不同植物ITS2和psbA-trnH基因间隔区序列进行系统发育分析,探索柳属植物的遗传多样性和亲缘关系。提取柳属植物和柽柳样品基因组DNA,通过PCR扩增法,获得各样品ITS2和psbA-trnH序列并测序。通过对序列种内种间遗传距离及邻接法构建系统发育树进行分析。基于ITS2序列的DNA条形码鉴定方法能将五蕊柳、粉枝柳、筐柳、蒿柳与其他物种区分开,柳组物种仅可鉴定到组级别。在以psbA-trnH基因片段序列建立的系统发育树中,柳属各种之间的序列聚类较为混乱,并不能各自独立聚为一支。因此,ITS2序列在柳属植物分类鉴定上具有一定的优势,为柳属植物的开发利用提供参考依据。

关键词: 柳属, ITS2, psbA-trnH, DNA条形码, 分子鉴定

Abstract:

We used phylogenetic analysis to compare the ITS2 and psbA-trnH sequences of the plant of the genus Salix samples, so as to explore the genetic diversity and genetic relationship of these resources. Extract genomic DNA of the genus Salix and Tamarix chinensis samples. The ITS2 and psbA-trnH gene sequences of each samples were amplified and sequenced by PCR. The intraspecific and interspecific genetic distances and the neighbor joining(NJ) methods were used to construct phylogenetic trees. According to the phylogenetic tree of ITS2. S. pentandraS. roridaS. linearistipularis and S. schwerinii formed a monophyletic clade, distinguished from the same genus. Phylogenetic tree constructed by psbA-trnH sequences were unable to distinguish the genus Salix samples from different geographical sources. Therefore, ITS2 sequence was suitable for the authentication, and would provide a certain reference for the subsequent development and research of the plant of genus Salix.

Key words: Salix, ITS2, psbA-trnH, DNA barcoding, molecular identification

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