Buddleja davidii and Buddleja yunnanensis: Exploring features associated with commonness and rarity in Buddleja
Chen, Gao1; Sun, Hang2; Sun, Weibang1; Norman, Eliane3
2011
发表期刊FLORA
ISSN0367-2530
卷号206期号:10页码:892-895
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.
关键词Buddleja Davidii Buddleja Yunnanensis Autogamy Xenogamy Floral Volatiles Dust Seeds
资助信息National Natural Science Foundation of China[NSFC30970192, 30625004, 40930209]; Natural Science Foundation of Yunnan Province[2009CD110]
收录类别SCI
语种英语
引用统计
文献类型期刊论文
条目标识符http://ir.kib.ac.cn/handle/151853/3942
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, 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
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Chen, Gao,Sun, Hang,Sun, Weibang,et al. Buddleja davidii and Buddleja yunnanensis: Exploring features associated with commonness and rarity in Buddleja[J]. FLORA,2011,206(10):892-895.
APA Chen, Gao,Sun, Hang,Sun, Weibang,&Norman, Eliane.(2011).Buddleja davidii and Buddleja yunnanensis: Exploring features associated with commonness and rarity in Buddleja.FLORA,206(10),892-895.
MLA Chen, Gao,et al."Buddleja davidii and Buddleja yunnanensis: Exploring features associated with commonness and rarity in Buddleja".FLORA 206.10(2011):892-895.
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