两个新发现的黄瓜性别决定基因遗传规律的研究

 选取黄瓜两个雌雄同株型的强雌性高代自交系材料与普通雌雄同株、两性花株、纯雌株高代自交系材料杂交, 通过对F₁、F₂、BC₁ -1 和BC₁ -2 代性型观察, 统计分析表明: 雌雄同株型的强雌性由1对不完全显性和1对隐性基因控制, 暂定名为Mod-F₁和mod-F₂, 它们是新发现的黄瓜性别表达的两个基因, 能增强黄瓜植株雌性的表达, 与F和M 基因独立遗传。

Two Sex Determining Genes and Their Inheritance in Cucumber

Through the analysis of the sexual character of monoecious plants based on the ability of producing exclusively female flowers at later stages, monoecious cucumber could be divided into two groups of monoecious: common monoecious and monoecious-subgynoecious (MOA-subgynoecious). In the experiment, which 5 parental combinations from inbred two MOA-subgynoeciouses(98-17, S-2-98), monoecious(95), gynoecious(WI1983G) and hermaphrodite(WI1983H) and their F_2,BC_1P_1,BC_1P_2 were as research materials. Genetic analysis showed the MOA-subgynoecious with the ability of producing exclusively female flowers at later stagers were controlled respectively by one pair of incompletely dominant gene and one pair of recessive gene, which were respectively designated presently as Mod-F1 and mod-F2. Genes Mod-F1 and mod-F2, which enhanced the intensity of femaleness, inherited independently with F and M genes.