摘要
在评述十字花科(Cruc iferae)分类系统,分析主要性状演化趋势和科、属分布的基础上,提出中国十字花科植物可能是本土起源的观点,其起源中心和分布中心可能在以青藏高原为主体的西部高山和丘陵地区,起源时间至少在第三纪晚期以前,并认为中国十字花科植物自起源地(青藏高原)可能有3条主要的散布途径:第1条是自青藏高原向东北部,沿宁夏、陕西、内蒙古、山西、河北,到达东北大小兴安岭一带,并在蒙古高原及东北山地形成次分布中心;第2条自青藏高原向东,经重庆、湖南、湖北,沿长江流域分布,到达东部沿海一带;第3条自青藏高原向东南部,经贵州、广西、广东、福建,延伸到台湾。
Based on full analysis of classified system, specific analysis for main form developing, distribution of family and genus of Cruciferae, the hypothesis was advanced that the center of diversity and origin of Chinese Cruciferae was in Qinghai-Tibet Plateau and its around high-land areas, and the origin time was traced back to Tertiary Period before at least. Besides, the result shows that there were three migration routes which led to the present distribution pattern： one of them from Qinghai-Tibet Plateau Northeastward across Ningxia, Shaanxi, Inner Mongolia, Shanxi, Hebei to Northeastern of China; the second from Qinghai-Tibet Plateau eastward across Chongqing, Hu＇nan, Hubei along Changjiang River basin distribution to east coast of China; the third from Qinghai-Tibet Plateau Southeastward across Guizhou, Guangxi, Guangdong, Fujian, extent to Taiwan.
出处
《植物资源与环境学报》
CAS
CSCD
2006年第3期7-11,共5页
Journal of Plant Resources and Environment
基金
国家自然科学基金资助项目"西藏野生油菜种质资源多样性及其演化研究"(30360055)
教育部新世纪优秀人才支持计划项目"西藏高原油菜起源与演化研究"(NCHT-05-0826)
教育部科学技术研究重点项目"西藏油菜种质资源评价
利用与数据库建立"(Z06141)联合资助
关键词
十字花科
地理分布
中国
Cruciferae
geographical distribution
China
