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题名: Buddleja davidii and Buddleja yunnanensis: Exploring features associated with commonness and rarity in Buddleja
作者: Chen, Gao1; Sun Hang(孙航)2; null(孙卫邦)1; Norman, Eliane3
刊名: FLORA
关键词: Buddleja davidii ; Buddleja yunnanensis ; Autogamy ; Xenogamy ; Floral volatiles ; Dust seeds
英文摘要: Buddleja davidii is a widespread shrub in Asia while B. yunnanensis is a narrowly endemic species limited to Yunnan Province, China. To explore whether floral volatiles, morphological characters of flower and seed and breeding system are correlated with their distributions, we measured length and width of corolla, trichome density at corolla throat, level of stigma/anthers relationship, seed size and weight. The results indicated that these characteristics were significantly different between the two species (P < 0.01). Bagging experiments revealed that B. davidii is a self-incompatible plant while B. yunnanensis is self-compatible. Thick trichome density at the corolla throat may reduce out-crossing in B. yunnanensis. Autogamy plays an important role in fruit production of this species while B. davidii requires pollinators for fruiting. Scents were collected using dynamic headspace adsorption method and identified with coupled gas chromatography and mass spectrometry. In total, 27 floral scent compounds were identified. The volatile composition in the two species was very different. We attempted to determine if these features, associated with commonness and with rarity found in these two taxa, could also help to explain the distribution pattern of other species of the genus Buddleja. (C) 2011 Elsevier GmbH. All rights reserved.
出版日期: 2011
卷号: 206, 期号:10, 页码:892-895
DOI标识: 10.1016/j.flora.2011.05.006
语种: 英语
收录类别: SCI
学科分类: Plant Sciences
ISSN号: 0367-2530
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.kib.ac.cn/handle/151853/3942
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, Kunming Bot Garden, Kunming 650204, Yunnan, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650204, Yunnan, Peoples R China
3.Stetson Univ, Dept Biol, Deland, FL 32723 USA

Recommended Citation:
Chen, Gao; Sun, Hang; Sun, Weibang; Norman, Eliane.Buddleja davidii and Buddleja yunnanensis: Exploring features associated with commonness and rarity in Buddleja,FLORA,2011,206(10):892-895
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