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中国凤仙花属(Impatiens)种子特征的分类学意义与进化启示:基于显微 ...
来自中国的研究人员针对凤仙花属(Impatiens)分类学争议与进化路径不明的问题,通过扫描电镜(SEM)对145个物种的种子微形态(包括种皮纹饰、细胞排列等)进行定量分析,结合核基因ITS与叶绿体atpB-rbcL序列构建系统发育树。研究发现种子超微结构特征可有效界定进化分支,并首次推演了中国地区凤仙 ...
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