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Molecular phylogeny of the polystichoid ferns in Asia based on rbcL sequences
Lu, Jin-Mei; Barrington, David S.; Li, De-Zhu
2007
发表期刊SYSTEMATIC BOTANY
卷号32期号:1页码:26-33
摘要Polystichum has often been treated as a sub-cosmopolitan genus of 180-230 species (i.e., Polystichum s.l.), but several segregate genera, such as Cyrtogonellum, Cyrtomidictyum, Cyrtomium, Phanerophlebia, and Sorolepidium, have been recognized in various treatments. Together, these genera constitute the polystichoid ferns. We used a data set of 47 species of the polystichoid ferns and three outgroups, including new rbcL sequences for six species in Asia, to address their phylogeny. Maximum-parsimony (MP) and Bayesian inference analyses were performed. The polystichoid ferns were resolved to include four major clades, the tropical American Phanerophlebia clade, the Cyrtomium s.s. clade, the Polystichum s.s. clade, and an eastern Asian clade containing Cyrtomium subser. Balansana, Cyrtogonellum, three sections of Polystichum, and Cyrtomidictyum (the BCPC clade). The Cyrtomium s.s. clade included 15 species of the genus but excluded subser. Balansana. The Polystichum s.s. clade was resolved as being monophyletic with relatively low bootstrap support, as long as Sorolepidium is included in Polystichum. The overall topology retrieved by the Bayesian analysis was similar to that of the MP tree, but generally had higher internal support. Based on the molecular phylogeny, three sections of Polystichum s.l., i.e., sect. Sphaenopolystichum, sect. Haplopolystichum, and sect. Crucifilix, may be more closely related to other members of the BCPC group. The eastern Asian BCPC group shared once-pinnate fronds, except for Polystichum sect. Sphaenopolystichum. Morphologically, once-pinnate leaf dissection and reticulate venation appear to be ancestral in the polystichoid ferns.
关键词Bcpc Group Cyrtomium S.s. Molecular Phylogeny Polystichoid Ferns Polystichtum S.s. Rbcl.
学科领域Plant Sciences ; Evolutionary Biology
收录类别SCI
语种英语
WOS研究方向Plant Sciences ; Evolutionary Biology
WOS类目Plant Sciences ; Evolutionary Biology
WOS记录号WOS:000244622500005
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被引频次:29[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/151853/11271
专题中国西南野生生物种质资源库
作者单位1.Chinese Acad Sci, Kunming Inst Bot, Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
2.Univ Vermont, Dept Bot, Pringle Herbarium, Burlington, VT 05405 USA
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Lu, Jin-Mei,Barrington, David S.,Li, De-Zhu. Molecular phylogeny of the polystichoid ferns in Asia based on rbcL sequences[J]. SYSTEMATIC BOTANY,2007,32(1):26-33.
APA Lu, Jin-Mei,Barrington, David S.,&Li, De-Zhu.(2007).Molecular phylogeny of the polystichoid ferns in Asia based on rbcL sequences.SYSTEMATIC BOTANY,32(1),26-33.
MLA Lu, Jin-Mei,et al."Molecular phylogeny of the polystichoid ferns in Asia based on rbcL sequences".SYSTEMATIC BOTANY 32.1(2007):26-33.
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