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题名: Molecular evidence for natural hybridization between Rhododendron spiciferum and R-spinuliferum (Ericaceae)
作者: Yan, Li-Jun1, 2, 3; null(高连明)1; null(李德铢)1, 2
刊名: JOURNAL OF SYSTEMATICS AND EVOLUTION
关键词: homoploid ; ITS ; natural hybridization ; R. xduclouxii ; R. spiciferum ; R. spinuliferum ; trnL-F
英文摘要: Rhododendronxduclouxii is morphologically intermediate between Rhododendron spiciferum and Rhododendron spinuliferum, and was suspected to be a natural hybrid between these species. In this study, the nuclear ribosomal internal transcribed spacer (ITS) and chloroplast trnL-F regions of 34 accessions of R.xduclouxii and its putative parents were analyzed for evidence of hybridization. The results from molecular data supported by morphology demonstrated that R.xduclouxii represents a natural hybrid between R. spiciferum and R. spinuliferum. It also implies that the hybridization between R. spiciferum and R. spinuliferum is bidirectional, and that populations of R.xduclouxii represent hybrid swarms from backcrossing or selfing of F-1 plants. The study is important for understanding the speciation processes in the genus since it demonstrates for the first time the existence of a natural homoploid hybrid in Rhododendron subgenus Rhododendron.
出版日期: 2013-07-01
卷号: 51, 期号:4, 页码:426-434
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 1674-4918
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/16821
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 650201, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Yan, Li-Jun; Gao, Lian-Ming; Li, De-Zhu.Molecular evidence for natural hybridization between Rhododendron spiciferum and R-spinuliferum (Ericaceae),JOURNAL OF SYSTEMATICS AND EVOLUTION,2013,51(4):426-434
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文件名: Yan et al.-2013.JSE-Rhododendron hybrid.pdf
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