一种基于标志点的叶片几何形态分析方法

Geometric morphological analysis of leaves based on landmarks

以川滇高山栎叶片为例,介绍基于叶片标志点的Morpho J软件对叶片形态进行分析的方法.通过采集叶片标志点及普氏叠印法处理,将叶片形态特征量化,并创建叶形"形态空间",通过"形态模型"检验叶片形态之间的差异性.该方法将叶形量化,使得叶形与其它特征之间的耦合研究成为可能.

An analytical method of geometric morphology was introduced by using the Morpho J software based on the leaf landmarks on the evergreen oak species Quercus aguifolioides.This method could collect the landmarks of the leaves and implement a Procrustes superimposed algorithm to quantify leaf morphology and eventually create a leaf ＂shape space＂（morphospace）.We investigated the morphological differences between leaves with the ＂shape model＂ and concluded that the quantification of leaf shapes makes it possible to associate leaf shapes with other characteristics.