摘要:淫羊藿属植物多数种类在形态分类性状上存在连续过渡的形态变异现象,导致种间的鉴别困难。本研究对粗毛淫羊藿、巫山淫羊藿、天平淫羊藿,3个物种合计29个居群之间的种间杂交F,代植株及其亲本形态学进行了比较研究。结果表明:AC×MY、AC×WU、WU×MY3种组合杂交F1代的叶片形状表现为双亲过渡形态,控制淫羊藿花瓣距短于内萼片的基因可能是部分显性,E.acuminatum的花瓣和内萼片颜色属于显性遗传。所得结果为淫羊藿属植物分类学、种间系统关系及其起源与进化研究提供了新的资料和线索。
It is known that there are continuous variations of morphological characteristics for taxonomy among most Epimedium species, leading to difficulties of species .identification. The morphology of interspecific F1 hybrid plants among 29 populations of E. acuminatum,E, wushanese and E. myrianthum was studied comparatively. The results shows that the length of flower calcar shorter than the inner sepal may be controlled by partly-dominant gene, and the leaf shape of hybrid F1 progenies are the middle type between the parents. The colour of the inner sepal and flower calcar in E. acuminatum is controlled by dominant genes. These above results are useful on interspecific hybridization and variety improvement on Epimedium.