中国南蛇藤属（卫矛科）的分类修订

项目名称： 中国南蛇藤属（卫矛科）的分类修订

项目编号： No.30870149

项目类型： 面上项目

立项/批准年度： 2009

项目学科： 轻工业、手工业

项目作者： 张志翔

作者单位： 北京林业大学

项目金额： 24万元

中文摘要： 以居群研究为基础，结合对国内外各大标本馆共约6500份标本的研究，对我国南蛇藤属植物开展宏观、微观形态学研究与地理分布调查，结合花序组织发生学、花梗关节的石蜡切片以及分子系统学研究结果，探讨了本属的系统发育关系，澄清了现存种类和种下单位的分类学问题，完成中国南蛇藤属的分类学修订。微观形态学研究结果表明，本属花粉微形态特征相近，不具分类学价值；叶片微形态学差异较小，主要差异表现在气孔和毛被密度上；种皮微形态学差异较大，具有较高分类学价值。分子系统学研究结果表明，前人基于花序等形态性状提出的属下单位划分系统（亚属、系、组等）不合理，应予舍弃。本研究尚未发现能与分子系统学结果高度吻合的形态学性状，暂不设立新的属下单位。而且，南蛇藤属单系类群的性质有待确认，其与雷公藤属的关系需要深入探究。经研究确认，中国有南蛇藤属植物21种，其中2种为本研究新发现，1种为中国新记录，存疑1种。通过本项研究，已发表论文4篇（SCI刊物一篇，核心期刊两篇，会议论文一篇），在审3篇（两篇为SCI刊物，一篇为中文核心期刊）。

中文关键词： 南蛇藤属；卫矛科；分子系统学；分类修订；中国

英文摘要： The taxonomic revision of Celastrus L. in China was performed based on population investigation in the field and 6500 sheetes specimens examination in herbaria at home and abroad, macro- and micro-morphological studies, parafin section researches of inflorescences and articulation on stalks and molecular phylogenetic methods, which construct intra generic relationships and clarify several problematic species in the genus. The results based on micro-mophological research indicated similar pollen morphology inter species, a little differencee of density in stomata and pubescence on leaves and obvious differences in seed coat charactersitics for species identification. The molecular phylogenetic analysis refuse the subgeneric classification schemes of the genus based on inflorescences and other mophologies. For no distinct morphologies collaborating the molecular results were detected, no new subgeneric classification system is provided in the present study. Furthermore, the monophy of Celastrus need to be confirmed and its ambigous relationship with Tripterygium is also waiting for verification. Based on our revision, 21 species are distributed in China, two of them are new species and one of them is the new record, one species left for further examination. Four papers have been published (one SCI paper) and three more in revision (two of them are SCI journals).

英文关键词： Celastrus; Celastraceae; molecular phylogeny; taxonomic revision; China