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
- 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
? 共同第一作者
收稿日期: 2014-08-21
录用日期: 2015-01-27
网络出版日期: 2015-05-07
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
- 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
? These authors contributed equally to this paper
Received date: 2014-08-21
Accepted date: 2015-01-27
Online published: 2015-05-07
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(matK、rbcL、ndhF、trnL-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; Neothorelia、Tirania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。
本文引用格式
赵慧玲, 鲁丽敏, 苏俊霞, 陈之端 . 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[J]. 植物学报, 2015 , 50(4) : 473 -481 . DOI: 10.11983/CBB14152
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.
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