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题名: Pollen morphology of Gaultheria L. and related genera of subfamily Vaccinioideae: Taxonomic and evolutionary significance
作者: Lu, Lu1, 2; Fritsch, Peter W.3; null(王红)1, 4; Li, Hong-Tao1; null(李德铢)1; Chen, Jian-Qun4
刊名: REVIEW OF PALAEOBOTANY AND PALYNOLOGY
关键词: character evolution ; Gaultheria L. ; Gaultherieae ; pollen morphology ; taxonomy ; Vaccinioideae
英文摘要: The pollen morphology of 86 samples from 84 species of Gaultheria and the closely related genera Chamaedaphne, Craibiodendron, Diplycosia, Eubotrys. Gaylussacia, Leucothoe, Lyonia, Oxydendrum. Pieris, Satyria, and Vaccinium (subfamily Vaccinioideae) was investigated with light and scanning electron microscopy. The tetrahedral tetrads are tri-zonocolporate and range from 22.9 to 51.5 mu m in diameter. Exine ornamentation (apocolpia and mesocolpia) of pollen grains is highly variable. Six exine types of apocolpia and five exine types of mesocolpia are distinguished. Viscin threads on the pollen grains of members of Gaultheria are first reported in the study. Colpus length is correlated with both pollen size and colpus maximum width. There is a weak correlation between corolla length and pollen size when the length of the corolla is less than 6 mm. Infrageneric relationships of taxa in Gaultheria are discussed on the basis of pollen data. Pollen morphology is ubiquitously variable at both the species and genus levels. Pollen data support the sister relationships between Satyria and Vaccinium and between Chamaedaphne and Eubotrys of a previously reported molecular phylogenetic analysis. The evolution of pollen characters is traced by character optimization and results discussed. An evolutionary trend of mesocolpium ornamentation within Vaccinioideae from granulate through granulate-rugulate to rugulate is apparent. (C) 2008 Elsevier B.V. All rights reserved.
出版日期: 2009-04-01
卷号: 154, 期号:1-4, 页码:106-123
DOI标识: 10.1016/j.revpalbo.2008.12.009
语种: 英语
收录类别: SCI
学科分类: Plant Sciences; Paleontology
ISSN号: 0034-6667
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3120
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, Lab Biodivers & Biogeog, Kunming 650204, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Calif Acad Sci, Dept Bot, San Francisco, CA 94103 USA
4.Nanjing Univ, Sch Life Sci, Nanjing 210093, Jiangsu, Peoples R China

Recommended Citation:
Lu, L; Fritsch, PW; Wang, H; Li, HT; Li, DZ; Chen, JQ.Pollen morphology of Gaultheria L. and related genera of subfamily Vaccinioideae: Taxonomic and evolutionary significance,REVIEW OF PALAEOBOTANY AND PALYNOLOGY,2009,154(1-4):106-123
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