小毛茛居群分化研究(Ⅰ)——居群内和居群间的形态变异  

Primary studies on differentiation of populations in Ranunculus ternatus Thunb.(Ⅰ) ——Inter-/intro-population variance of morphological characteristics

作　　者：张竞男[1] 周巍[2] 汪小凡[1] 予茜[3] 张刚 

机构地区：[1]武汉大学植物发育生物学教育部重点实验室,湖北武汉430072 [2]信阳农业高等专科学校,河南信阳464000 [3]武汉大学生命科学学院,湖北武汉430072

出　　处：《广西植物》2001年第2期146-149,共4页Guihaia

基　　金：国家自然科学基金!资助项目 (39870 0 82 ) ;武汉大学本科生业余科研项目

摘　　要：对小毛茛的 3个地点共 6个居群的的形态变异作了观测。该种的株高、叶形、花瓣数目等性状具有显著的居群内和居群间变异。用 31个形态及生境性状作出的聚类分析结果表明 :小毛茛居群遗传分化主要与居群所在生境因素相关 ,与地理位置之间仅有不显著的相关性。Morphological variance of six populations in Ranunculus ternatus Thunb. from three locations was observed. Inter-/intro- population variance occurred remarkably in some morphological characters such as height of plants, shape of leaves, and number of petal in each flowers. Based on the morphological characters and habitat factors, cluster analysis showed that, the genetic differentiation among populations in R. Ternatus is mainly related to the habitat factors. The relativity between genetic variance and geographical sites is not remarkable.

关 键 词：小毛莨 居群分化 形态变异 

分 类 号：Q949.746.6[生物学—植物学]