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题名: Plant sexual systems correlated with morphological traits: Reflecting reproductive strategies of alpine plants
作者: Peng, De-Li1, 2, 3; Ou, Xiao-Kun1; Xu, Bo2; Zhang, Zhi-Qiang2; Niu, Yang2; Li, Zhi-Min4; Sun Hang(孙航)2
刊名: JOURNAL OF SYSTEMATICS AND EVOLUTION
关键词: alpine subnival belt ; floral display ; fruit types ; Hengduan Mountains ; pollination syndrome ; sexual systems
英文摘要: Plant sexual systems can be affected by various environmental factors, and thus show a range of morphological differences. The associations between plant sexual systems and morphology are unique, for example, the subnival belt of the Hengduan Mountains has harsh climatic conditions, but hosts remarkable biodiversity. However, these associations have received surprisingly little attention. We analyzed the associations in this region, and compared the pattern of sexual systems with that of other floras, and we also reviewed the breeding system of 36 alpine species. Information on plant sexual systems and these traits were mainly based on published information, herbarium collections, and field observations. The results showed that there was a high proportion of hermaphroditic species and a low proportion of dioecious and monoecious species. Hermaphroditism was strongly associated with showy floral displays, specialist entomophily, and perennial forbs. Dioecy was strongly associated with inconspicuous, pale-colored flowers, anemophily, and shrubs, whereas monoecy was strongly associated with inconspicuous, pale-colored flowers, generalist entomophily, and perennial grasses. Although no association was found between sexual systems and fruit type, plants with dry fruits (98.1%) were predominant in our study region. With respect to the plant breeding systems in the alpine region of southwest China, we predicted that pollination service might be particularly low; most of the plants lacked enough outcrossing pollinators. Our data revealed that 97.1% of the hermaphroditic species were self-compatible, and 88.2% of them showed autonomous or facilitated selfing. The plant sexual systems identified might serve to optimize the probability of pollination and thus ensure reproductive success.
出版日期: 2014-05-01
卷号: 52, 期号:3, 页码:368-377
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/151853/18137
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.Yunnan Univ, Inst Ecol & Geobot, Kunming 650091, Peoples R China
2.Chinese Acad Sci, Kunming Inst Bot, Key Lab Biodivers & Biogeog, Kunming 650201, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Yunnan Normal Univ, Sch Life Sci, Kunming 650500, Peoples R China

Recommended Citation:
Peng,De-Li;Ou,Xiao-Kun;Xu,Bo;Zhang,Zhi-Qiang;Niu,Yang;Li,Zhi-Min;Sun,Hang.Plant sexual systems correlated with morphological traits: Reflecting reproductive strategies of alpine plants,JOURNAL OF SYSTEMATICS AND EVOLUTION,2014,52(3):368-377
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