The inhibiting effect of 1.4 recombinant P chromosome of wheat-Agropyron cristatum addition line on the Ph gene

• 来源期刊: 科学通报(英文版)
• 学科: 生物学
• 关键词: 染色体重组 Ph基因 附加系 小麦 抑制作用 冰草 同源染色体 电话
• 年，卷（期）: 2010,（2）
• 所属期刊栏目: ARTICLES
• 页码范围: 153-157
• 页数: 5页
• 分类号: Q789 S511.035.1
• 语种: 英文

摘要

P chromosomes may carry a genetic system that inhibits the Ph gene in wheat. Abnormal chromosome synapsis in wheat-Agropyron cristatum addition line II-21-2 (additional 1?4 recombinant P chromosome) was observed in this study. The results of cytogenetics and Ph1 gene amplification showed that the Ph1 gene was normal and the average number of quadrivalents or hexavalents was determined to be 0.41 and 0.13, respectively, in pollen-mother cells of wheat-Agropyron cristatum addition line II-21-2. The analysis o...