基于形态学的8种鸢尾属植物分支分类学分析  

Cladistic Analysis of 8 Species of Iris Based on Morphological Characters

作　　者：余小芳[1] 蒋喻林 刘宇婧[1] 冯艺玫 周永红[2] YU Xiao- fang JIANG Yu-lin LIU Yu- jing FENG Yi- mei ZHOU Yong- hong(Landscape Architecture College, Sichuan Agricultural University Triticeae Research Institute, Sichuan AgriculturalUniversity, Wenjiang 611130, Sichuan, China)

机构地区：[1]四川农业大学风景园林学院 [2]四川农业大学小麦研究所,四川温江611130

出　　处：《四川农业大学学报》2016年第4期440-444,共5页Journal of Sichuan Agricultural University

基　　金：四川省教育厅项目(13ZB0295)

摘　　要：【目的】通过对8种1变种鸢尾属植物的27个形态学特征分析为鸢尾属植物的种间关系提供形态学依据。【方法】对8种1变种鸢尾属植物的27个形态性编码,以射干为外类群,利用PAUP中的最大简约法进行鸢尾属植物的表型分支分析。【结果】经简约分析,得到了4棵同等最大简约分支树,其严格一致树显示:1白花马蔺和马蔺聚为一支,其自展值为96%;2四川鸢尾、薄叶鸢尾和锐果鸢尾聚为一支,其自展值为55%,然而,四川鸢尾和薄叶鸢尾与锐果鸢尾的枝分开,其自展值为83%;3蝴蝶花、扁竹兰和扇形鸢尾聚为一支,其自展值为57%。其中,扁竹兰和扇形鸢尾与蝴蝶花的枝分开,其自展值为78%。【结论】1白花马蔺和马蔺的关系很近,支持将马蔺作为白花马蔺的变种处理;2四川鸢尾和薄叶鸢尾较锐果鸢尾关系近;3扁竹兰和扇形鸢尾两种之间的关系较蝴蝶花更近。[Objective] The aim of the study was to analyzed the 27 morphological characters of 8 species and 1 varietas in Iris and to provide morphological basis for interspecific classification relationships of genus Iris. [Method] On the basis of numerical taxonomy study of Iris L., 27 typical morphological traits of 8 species and 1 varietas of Iris were coded. The Belamcanda chinensis （L.） DC was taken as outgroup and their MP phylogenetic tree was constructed. [Results] （1）I. lactea vat. chinensis and I. lactea formed A clade and the bootstrap support was 96%. （2）I. leptophylla,I, sichuanensis and I. goniocarpa formed B clade and the bootstrap support was 55%. However, I. leptophylla,I, sichuanensis consisted one little clade from L goniocarpa and the bootstrap support was 83%. （3）L japonica, L wattii and L confusa comprised the C clade the bootstrap support was 57%. Nevertheless,I. wattii and I. confusa formed one little clade from I, japonica and the bootstrap support was 78%. [Conclusion] （1）The relationship of 1. lactea var. chinensis and I. lactea was close, supporting the hypotheisis that I, lactea var. chinensis is a variety of I. lactea. （2）The relationship between I. leptophylla and I. sichuanensis was closer as compared to 1. goniocarpa. （3）I. japonica had relatively distant relationship with I. wattii compared to I. confusa.

关 键 词：鸢尾属 分支分类学 亲缘关系 

分 类 号：S646[农业科学—蔬菜学]