To identify the theoretic foundation for maintaining and improving high quality varieties and breeding new F1 hybrids, flower color segregation occurred in the offspring in both self-pollination and cross- pollination...To identify the theoretic foundation for maintaining and improving high quality varieties and breeding new F1 hybrids, flower color segregation occurred in the offspring in both self-pollination and cross- pollination of varieties of different colors were investigated. The main results indicate that the heredity of Cyclamen persicum color follows both quantitative and qualitative hereditary regularity. All genes can be classified as two groups of the throat-gene and coronal-gene occupying different spots on the chromosome. The colored gene is the dominant gene, while the white gene is the recessive one. The gene groups and their quantity determine the color of cyclamen persicum. And sometimes the throat- gene and the coronal-gene take a recombination, forming a new type of flower.展开更多
在无菌条件下培养仙客来种子,并以无菌萌发植株的子叶节、子叶、叶片及叶柄为外植体进行芽分化诱导。试验结果表明,不同浓度TDZ对各外植体的诱导效果不同,用子叶节、子叶、叶片及叶柄均可诱导出再生芽,但以叶片为材料的诱导效果最佳,其...在无菌条件下培养仙客来种子,并以无菌萌发植株的子叶节、子叶、叶片及叶柄为外植体进行芽分化诱导。试验结果表明,不同浓度TDZ对各外植体的诱导效果不同,用子叶节、子叶、叶片及叶柄均可诱导出再生芽,但以叶片为材料的诱导效果最佳,其中1.0 m g/L TDZ对叶片再生芽的诱导效果最好,而子叶以0.5 m g/LTDZ、子叶节和叶柄以0.2 m g/L TDZ诱导再生芽的效果较好。展开更多
基金The project was funded by Hebei Forestry Bureau (0008261)
文摘To identify the theoretic foundation for maintaining and improving high quality varieties and breeding new F1 hybrids, flower color segregation occurred in the offspring in both self-pollination and cross- pollination of varieties of different colors were investigated. The main results indicate that the heredity of Cyclamen persicum color follows both quantitative and qualitative hereditary regularity. All genes can be classified as two groups of the throat-gene and coronal-gene occupying different spots on the chromosome. The colored gene is the dominant gene, while the white gene is the recessive one. The gene groups and their quantity determine the color of cyclamen persicum. And sometimes the throat- gene and the coronal-gene take a recombination, forming a new type of flower.
文摘在无菌条件下培养仙客来种子,并以无菌萌发植株的子叶节、子叶、叶片及叶柄为外植体进行芽分化诱导。试验结果表明,不同浓度TDZ对各外植体的诱导效果不同,用子叶节、子叶、叶片及叶柄均可诱导出再生芽,但以叶片为材料的诱导效果最佳,其中1.0 m g/L TDZ对叶片再生芽的诱导效果最好,而子叶以0.5 m g/LTDZ、子叶节和叶柄以0.2 m g/L TDZ诱导再生芽的效果较好。
