植物分类学报    2008 46 (3): 396-404    ISSN: 0529-1526  CN: 11-1897/Q  首页     当期目录 上一期    下一期

 
RESEARCH ARTICLES
扩展功能
本文信息
 Supporting info
 PDF(247KB)
 [HTML全文](0KB)
 参考文献[PDF]
 参考文献
服务与反馈
把本文推荐给朋友
 加入我的书架
 加入引用管理器
 引用本文
 Email Alert
相关信息
本文作者相关文章
·
·
·
· 桑涛
果实类型和种子传播的进化:系统发育和生态学简论
Claire M. LORTS, Trevor BRIGGEMAN, 桑涛*

(Department of Plant Biology, Michigan State University, East Lansing, MI 48824, USA)

收稿日期 2008-3-26   修回日期 2008-4-23   网络版发布日期  2008-5-9   接受日期 
摘要  Success of flowering plants is greatly dependent on effective seed dispersal. Specific fruit types aid different mechanisms of seed dispersal. However, little is known about what evolutionary forces have driven the diversification of fruit types and whether there were phylogenetic constraints on fruit evolution among angio-sperm lineages. To address these questions, we first surveyed the orders and families of angiosperms for fruit types and found no clear association between fruit types and major angiosperm lineages, suggesting there was little phylogenetic constraint on fruit evolution at this level. We then surveyed fruit types found in two contrasting habitats: an open habitat including the Indian desert and North American plains and prairies, and a closed forest habitat of Australian tropical forest. The majority of genera in the survey of tropical forests in Australia were fleshy fruit trees, whereas the majority of genera in the survey of prairies and plains in central North America were herbs with capsules and achenes. Both capsules and achenes are frequently dispersed by wind in the open, arid habitat, whereas fleshy fruits are generally dispersed by animals. Since desert and plains tend to provide continuous wind to aid dispersal and there are more abundant mammal and bird dispersers in the closed forest, this survey suggests that fruit evolution was driven at least in part by dispersal agents abundant in particular habitats.

关键词
  

adaptation   angiosperm   animal dispersal   fruit development   wind dispersal

 

分类号
DOI:  10.3724/SP.J.1002.2008.08039
 

通讯作者:
桑涛hd sang @msu.edu 桠
作者个人主页: Claire M. LORTS; Trevor BRIGGEMAN; 桑涛*