Phylogenetic relationships within Pelargonium sect. Peristera (Geraniaceae) inferred from nrDNA and cpDNA sequence comparisons

被引：60
作者：
Bakker, FT [1 ]
Hellbrugge, D
Culham, A
Gibby, M
机构：
[1] Univ Reading, Sch Plant Sci, Dept Bot, Reading RG6 6AS, Berks, England
[2] Westfalische Wilhelms Universitat, Inst Bot, D-48149 Munster, Germany
[3] Nat Hist Museum, Dept Bot, London SW7 5BD, England
来源：
PLANT SYSTEMATICS AND EVOLUTION | 1998年 / 211卷 / 3-4期
关键词：
Geraniaceae; Pelargonium; Peristera; phylogeny; rDNA ITS; trnL-F; long-range dispersal; South Africa; Australia; St; Helena; Tristan da Cunha;
D O I：
10.1007/BF00985364
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Phylogenetic analysis of nrDNA ITS and trnL (UAA) 5' exon-trnF (GAA) chloroplast DNA sequences from 17 species of Pelargonium sect. Peristera, together with nine putative outgroups, suggests paraphyly for the section and a close relationship between the highly disjunct South African and Australian species of sect. Peristera. Representatives from Pelargonium sectt. Reniformia, Ligularia s. l. and Isopetalum (the St. Helena endemic P. cotyledonis) appear to be nested within the Peristera clade. The close relationship between the South African and Australian Peristera is interpreted as being caused by long-range dispersal to Australia, probably as recent as the late Pliocene.
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页码：273 / 287
页数：15
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