【摘 要】
：
被子植物有30多万种,对于人类生存和生态环境都具有极其重要的意义,被子植物各大类群之间的亲缘关系为各种研究提供了系统发育框架.近20年来,被子植物的系统发育研究有了大幅
【机 构】
：
遗传工程国家重点实验室复旦大学生命科学学院植物科学研究所进化生物学研究中心上海200433遗传工程国家重点实验室复旦大学生命科学学院植物科学研究所进化生物学研究中心上海200433;Departmen
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被子植物有30多万种,对于人类生存和生态环境都具有极其重要的意义,被子植物各大类群之间的亲缘关系为各种研究提供了系统发育框架.近20年来,被子植物的系统发育研究有了大幅度进展,基本确定了各大类群,如单子叶(monocots)和真双子叶(eudicots)植物.并且大多数研究人员也认同无油樟目(Amborallales),睡莲目(Nymphaeales),和木兰藤目(Austrobaileyales)为被子植物最基部的三个类群.这三支的植物只约占被子植物物种总数的0.05％.
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