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题名: Incongruence between Nuclear and Chloroplast DNA Phylogenies in Pedicularis Section Cyathophora (Orobanchaceae)
作者: null(郁文彬)1, 2, 3; Huang, Pan-Hui1, 3; null(李德铢)1, 2; null(王红)1
刊名: PLOS ONE
关键词: BAYESIAN POSTERIOR PROBABILITIES ; POLLINATION ECOLOGY ; INFERRING PHYLOGENY ; HENGDUAN MOUNTAINS ; QUATERNARY CLIMATE ; POLLEN MORPHOLOGY ; GENE TREES ; BOOTSTRAP ; CHINA ; EVOLUTION
英文摘要: Pedicularis section Cyathophora is a monophyletic group characterized by perfoliate leaf and/or bract bases at each node. This section comprises four series, corresponding to four general corolla types of Pedicularis, i.e. toothless, toothed, beaked and long-tubed corollas. In this study, we aim to reconstruct a comprehensive phylogeny of section Cyathophora, and compare phylogenetic incongruence between nuclear and chloroplast datasets. Sixty-seven accessions belonging to section Cyathophora and 9 species for other Pedicularis were sampled, and one nuclear gene (nrITS) and four chloroplast genes (matK, rbcL, trnH-psbA and trnL-F) were sequenced. Phylogenetic analyses show that the topologies and networks inferred from nrITS and the concatenated chloroplast datasets were incongruent, and the nrITS phylogenies and network agreed with the morphology-based taxonomy to some degree. The chloroplast genome of two Sichuan samples of P. cyathophylloides (E4 and E5) may show introgression from an ancestor of P. cyathophylla. Neither the nrITS dataset nor the concatenated chloroplast dataset were able to adequately resolve relationships among species in the series Reges; this is most likely due to incomplete lineage sorting and/or introgression/hybridization. The nrITS phylogeny indicates the beakless (toothed and toothless) and beaked galeas may have evolved independently within section Cyathophora, and the chloroplast phylogeny reveals that the long corolla tube with beaked galea is derived from the short one.
出版日期: 2013-09-19
卷号: 8, 期号:9, 页码:e74828
语种: 英语
收录类别: SCI
学科分类: Multidisciplinary Sciences
ISSN号: 1932-6203
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/17302
Appears in Collections:中国科学院东亚植物多样性与生物地理学重点实验室_期刊论文

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作者单位: 1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Plant Germplasm & Genom Ctr, Kunming, Yunnan, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing, Yunnan, Peoples R China

Recommended Citation:
Yu, Wen-Bin;Huang, Pan-Hui;Li, De-Zhu;Wang, Hong.Incongruence between Nuclear and Chloroplast DNA Phylogenies in Pedicularis Section Cyathophora (Orobanchaceae),PLOS ONE,2013,8(9):e74828
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