Morphological and molecular evidence of natural hybridization between two distantly related Rhododendron species from the Sino-Himalaya
Zha, Hong-Guang1; Milne, Richard Ian2; Sun, Hang1
2008
发表期刊BOTANICAL JOURNAL OF THE LINNEAN SOCIETY
ISSN0024-4074
卷号156期号:1页码:119-129
摘要Rhododendron (Ericaceae) is a large woody genus in which hybridization may play an important role in evolution and speciation, particularly in the Sino-Himalayan region, where many interfertile species often occur sympatrically. Natural hybridization between Rhododendron delavayi Franch. (= R. arboreum ssp. delavayi) and Rhododendron decorum Franch., which belong to different subsections of subgenus Hymenanthes, was investigated. Material of R. delavayi and R. decorum and their putative hybrids was collected from the wild. On the basis of morphology, chloroplast DNA, nuclear ribosomal DNA, and AFLP profiles, hybrids and parental species were identified. Hybridization occurred in both directions, but was asymmetrical, with R. delavayi as the major maternal parent in the hybrid zone. Most of the hybrids possessed intermediate phenotypes, and amongst the 15 hybrids detected were six F1s, two F2s, one first-generation backcross to R. delavayi, and two first-generation backcrosses to R. decorum. This indicates that, if Rhododendron underwent rapid radiation in this region, it did so in spite of permeable species barriers. (c) 2008 The Linnean Society of London.
关键词Aflp Chloroplast Dna Sequences Internal Transcribed Spacer (Its) Rhododendron Decorum Rhododendron Delavayi
学科领域Plant Sciences
收录类别SCI
语种英语
WOS研究方向Plant Sciences
WOS类目Plant Sciences
WOS记录号WOS:000252441800010
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被引频次:25[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/151853/2771
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1.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
2.Univ Edinburgh, Inst Mol Plant Sci, Edinburgh EH9 3JH, Midlothian, Scotland
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Zha, Hong-Guang,Milne, Richard Ian,Sun, Hang. Morphological and molecular evidence of natural hybridization between two distantly related Rhododendron species from the Sino-Himalaya[J]. BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,2008,156(1):119-129.
APA Zha, Hong-Guang,Milne, Richard Ian,&Sun, Hang.(2008).Morphological and molecular evidence of natural hybridization between two distantly related Rhododendron species from the Sino-Himalaya.BOTANICAL JOURNAL OF THE LINNEAN SOCIETY,156(1),119-129.
MLA Zha, Hong-Guang,et al."Morphological and molecular evidence of natural hybridization between two distantly related Rhododendron species from the Sino-Himalaya".BOTANICAL JOURNAL OF THE LINNEAN SOCIETY 156.1(2008):119-129.
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