| 摘要: |
| 运用具粘果山羊草细胞质的小麦雄性不育系对影响Ptg基因表达的遗传因素进行了研究。结果表明,粘果山羊草细胞质与Ptg基因互作产生单倍体是受雌配子体基因型控制的,只要雌配子体带有Ptg基因即有发育成单倍体的潜力;父母本基因型与单倍体频率有密切关系,但父本是否具有Ptg基因与诱导频率无关。 |
| 关键词: 小麦 外源细胞质 粘果山羊草 单倍体 |
| DOI： |
| 分类号: |
| 基金项目:国家自然科学基金资助项目 |
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| Studies on the Mechanism and Application of Wheat Haploids Induced by Alien Cytoplasms Ⅰ.Genetic Factors Effecting Ptg Gene Expression in Aegilops kotschyi Cytoplasm |
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Liu Qingfa Yang Tianzhang Zhang Xiaoqin Zhang Wenjun
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| Abstract: |
| The genetic factors effecting Ptg gene expression in Aegilops kotschyi cytoplasm was studied with some MS lines having Ae. kotschyi cytoplasm in common wheat. The results showed that the haploid induction was controlled by the megaspore-genotype, but no correlation between haploid frequencies and the genotype of the plant on which the megaspores were carried. As long as a megaspore carries the Ptg gene, it will have the ability to develope into a haploid embryo. The haploid frequencies were effected not only by the female, but also by the male parent. It has no correlation with the haploid frequencies whether a male parent used carried the Ptg gene(s) or not. |
| Key words: wheat cytoplasm Aegilops kotschyi haploids |
