茄子花色遗传及其对相关性状影响的研究

以田间西安绿茄突变产生的白花茄子筛选出的优良株系和原亲本群体为试材,研究了茄子的花色遗传及其对植株、花朵、果实等相关性状的影响。结果表明,茄子的花色由一对完全显性的基因Col—col控制,紫花对白花完全显性。遗传稳定的紫花株与白花株杂交,F1代表现为紫花,F2代群体的紫花和白花植株呈3：1分离;F1代植株与白花株交配,后代呈1：1分离。白花株系与紫花株系相比,植株生长旺盛,植株高、株幅大,每花的雄蕊数多,花粉粒大、花粉量少,果内种子数少、果实大、产量高。白花变异可直接做栽培资源利用,还可作为育种材料或用做茄子杂交种纯度鉴定的标记性状。

Flower color inheritance and its influence to related characters in eggplant

The inheritance of the white-flower and its influence to related characters in eggplant were studied with the white-flowered mutant of XIANLVQIE and its maternal bred.Result showed that the flower color was attributed to a couple of complete dominance genes.Purple color flower "Col" was dominant to the white "col".Compared with the purple-flowered strain,the white-flowered strain not only grew more blooming,but also had more stamens in one flower,less pollens in one anther and less seeds in one fruit.In the meanwhile,in white-flowered eggplants,microspore and fruit was bigger,and yield was higher than purple-flowered.The white-flowered strain could be used as a variety and the white-flowered character could be used as a marker to appraise purity of hybrid in eggplant.