植物学报 ›› 2015, Vol. 50 ›› Issue (4): 473-481.DOI: 10.11983/CBB14152

• 研究报告 • 上一篇    下一篇

基于形态和分子证据对斑果藤族和节蒴木科的系统学研究

赵慧玲1,2, 鲁丽敏2, 苏俊霞1,*(), 陈之端2   

  1. 1山西师范大学生命科学学院, 临汾 041004
    2中国科学院植物研究所系统与进化植物学国家重点实验室, 北京 100093
  • 收稿日期:2014-08-21 接受日期:2015-01-27 出版日期:2015-07-01 发布日期:2015-05-07
  • 通讯作者: 苏俊霞
  • 作者简介:

    ? 共同第一作者

  • 基金资助:
    国家自然科学基金(No.31300180, No.31270268)、国家重点基础研究发展计划(No.2014CB954100)、中国科学院海外科教基地建设计划(No.SAJC201315)、中国科学院国际合作局对外合作重点项目(No.GJIIZ201321)和山西师范大学校自然科学基金(No.ZR1312)

Phylogeny of Stixeae and Borthwickiaceae Based on Morphological and Molecular Data

Huiling Zhao1,2, Limin Lu2, Junxia Su1*, Zhiduan Chen2   

  1. 1School of Life Sciences, Shanxi Normal University, Linfen 041004, China
    2State Key Laboratory of Systematic and Evolutionary Botany, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
  • Received:2014-08-21 Accepted:2015-01-27 Online:2015-07-01 Published:2015-05-07
  • Contact: Su Junxia
  • About author:

    ? These authors contributed equally to this paper

摘要: 斑果藤族(Stixeae)和节蒴木属(Borthwickia)传统上被置于山柑科(Capparaceae), 最近的分子和形态学证据均支持它们从山柑科中分离出来, 节蒴木属已被提升为科, 但斑果藤族的系统位置和分类地位尚不清楚。为解决斑果藤族的系统位置和分类地位, 并进一步为节蒴木科的成立提供证据, 对核心十字花目GRFT (Gyrostemonaceae-Resedaceae- Forchhammeria-Tirania)分支, 使用叶表皮等20个形态性状和5个DNA片段(matKrbcLndhFtrnL-F和ITS), 用最大简约法(MP)和贝叶斯分析(BI)对形态及分子矩阵进行系统发育分析。结果高度支持斑果藤族的Neothorelia为GRFT分支成员; NeothoreliaTirania和斑果藤属(Stixis)聚为一支, 但Forchhammeria的位置尚不明确; 形态及分子系统发育分析结果均支持节蒴木科成立。

Abstract: Stixeae (including Stixis, Tirania, Neothorelia and Forchhammeria) and Borthwickia have traditionally been placed in Capparaceae. Recent molecular and morphological studies suggest Borthwickia as a new monotypic family. However, the positions and taxonomic ranks of Stixeae remain unresolved. To estimate the relationships of Stixeae, we reconstructed the phylogeny of the Gyrostemonaceae-Resedaceae-Forchhammeria-Tirania (GRFT) clade of the core Brassicales using maximum parsimony and Bayesian analysis with 20 morphological characters and five DNA regions (matK, rbcL, ndhF, trnL-F, and ITS). Our results strongly support Neothorelia as a new member of the GRFT clade; Neothorelia, Tirania and Stixis form a clade with strong support. The systematic position of Forchhammeria is still uncertain; molecular and morphological evidence support Borthwickiaceae as a new monotypic family.