Evaluation and characterization of flower form mutations and their application for breeding in evergreen azalea cultivars.

在本研究中，我们研究了常绿杜鹃花品种中有价值的花型突变的形态、遗传和相关基因分析。这些花型突变包括：软管状；花瓣状，花瓣状，长花型；瓣状花瓣，重瓣状；花瓣状雄蕊和/或雌蕊，蜘蛛状；退化雄蕊或狭窄的花瓣等，这些突变性状在每个野生种的品种中都可以找到。这些突变可能是由同源异型基因突变引起的。每一种突变形式都可以通过相应MADS基因的表达模式和DNA结构的变化来解释，其中软管型、长花型PI(B类)、AP3(B类)、双型和蜘蛛型、AG(C类)。

In this study, we investigated the morphology, inheritance and responsible gene analysis of the valuable flower form mutations in evergreen azalea cultivars. These flower form mutations include, hose in hose form; petaloid sepal, long lasting flower form; sepaloid petal, double form; petaloid stamen and/or pistil, spider form; staminoid or narrowed petal etc. and these mutational trait could find in varieties of each wild species. These mutations would be caused by homeotic gene mutations. Each mutational forms would be explained by changes of expression patterns and DNA structure of correspond MADS genes, hose in hose form; PI (B class), long lasting flower form;AP3 (B class), double form and spider form; AG (C class).