Infrageneric and sectional relationships in the genus Rhododendron (Ericaceae) inferred from ITS sequence data
Gao, LM; Li, DZ; Zhang, CQ; Yang, JB
2002-11-01
发表期刊ACTA BOTANICA SINICA
ISSN0577-7496
卷号44期号:11页码:1351-1356
摘要The internal transcribed spacer (ITS) regions of nuclear ribosomal DNA (including 5.8S rRNA) of 15 Rhododendron, species, representing most sections of the genus, one Ledum species and Cassiope fastigiata were sequenced. Together with the ITS sequences of 13 selected Rhododendron species and Bejaria racemosa downloaded from GenBank, we explored the infrageneric and sectional relationships of this important North Temperate genus by employing maximum-parsimony analysis using PAUP software. C. fastigiata and B. racemosa were designated as outgroups. The ITS-based tree inferred that: (1) Rhododendron was a well-supported monophyletic group, while subg. Therorhodion was basal to the rest of the genus; (2) Ledum was a member of Rhododendron, and its close relationship with the lepidote rhododendron was confirmed; (3) the lepidote rhododendron plus Ledum formed a strongly-supported monophyletic clade which was sister to the rest of the elepidote rhododendron; (4) the elepidote rhododendron formed a weakly-supported clade within which the monophyly of subg. Hynwrianthes and subg. Tsutsusi were strongly supported, while subg. Pentanthera and subg. Azaleastrum were polyphyletic; and (5) the monophyly of sect. Choniastnini, (subg. Azaleastrum) was strongly-supported, while subg. Tsutsusi could be sister to a weakly-supported clade composed of two sampled species of sect. Azaleastrum (subg. Azaleastrum) together with R. sentibarbatum, of subg. Mumeazalea.
关键词Rhododendron Internal Transcribed Spacer (Its) Phylogeny Infrageneric Relationships
学科领域Biochemistry & Molecular Biology ; Plant Sciences
收录类别SCI
语种英语
WOS研究方向Biochemistry & Molecular Biology ; Plant Sciences
WOS类目Biochemistry & Molecular Biology ; Plant Sciences
WOS记录号WOS:000179410400015
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/3229
专题中国科学院东亚植物多样性与生物地理学重点实验室
作者单位Chinese Acad Sci, Kunming Inst Bot, Lab Plant Biodivers & Biogeog, Kunming 650204, Peoples R China
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Gao, LM,Li, DZ,Zhang, CQ,et al. Infrageneric and sectional relationships in the genus Rhododendron (Ericaceae) inferred from ITS sequence data[J]. ACTA BOTANICA SINICA,2002,44(11):1351-1356.
APA Gao, LM,Li, DZ,Zhang, CQ,&Yang, JB.(2002).Infrageneric and sectional relationships in the genus Rhododendron (Ericaceae) inferred from ITS sequence data.ACTA BOTANICA SINICA,44(11),1351-1356.
MLA Gao, LM,et al."Infrageneric and sectional relationships in the genus Rhododendron (Ericaceae) inferred from ITS sequence data".ACTA BOTANICA SINICA 44.11(2002):1351-1356.
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