项目名称: 樟科植物地质演化史及花部形态学研究
项目编号: No.31300168
项目类型: 青年科学基金项目
立项/批准年度: 2014
项目学科: 生物科学
项目作者: 李景照
作者单位: 南阳师范学院
项目金额: 22万元
中文摘要: 樟科是构成热带和亚热带森林植物区系重要的一个科,其系统的演化关系一直存在争议,现代樟科植物的研究者一般很少考虑樟科植物化石的性状依据,而古植物学研究者对于现代樟科类群缺乏整体的系统认识。本项目从地质时期的樟科植物叶、花和木化石文献研究入手,系统整理出地质时期樟科植物的演化历史,绘制出地质时期樟科植物地理分布图和性状演化图,同时结合现代樟科植物叶形态和角质层特征及部分海南岛长昌盆地樟科植物叶化石形态特征和角质层特征,利用地质时期樟科植物花化石形态数据和现代樟科植物花部形态学数据,通过分支分类学的原理和方法得出樟科植物叶角质层的系统树和花部形态学的系统树,从而进一步探讨樟科植物主要类群的系统演化关系。
中文关键词: 樟科;花化石;叶化石;系统演化;地质演化史
英文摘要: The Lauraceace are an important family which constitute the tropical and subtropical forest flora. The phylogenetic relationship in this family has been controversial.Modern Lauraceae researchers rarely consider morphological characters of the Lauraceae fossil. Paleobotany researchers lack of overall understanding of the modern Lauraceae. This project starts with the leaves, flowers, and wood literature of the Lauraceae fossil, systematically sorts out the evolutionary history of the Lauraceae fossil, and draws geographical distribution map and morphological characters evolution map of the Lauraceae fossil. This project researches the leaves morphology and cuticle characeters of the modern Lauraceae and some the leaves morphology and cuticle characeters of the Lauraceae fossil from Changchang Baisin, Hainan Island.This project uses the literature of the Lauraceae flower fossil and the modern Lauraceae flower morphology characters and draws the leaf and the flower morphological system trees by the principles and methods of cladistics, and furthere more explores the phylogenetic relationship of some main Lauraceae plants.
英文关键词: Lauraceae;flower fossil;leaf fossil;sysmatic evolution;geological evolution history