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应用单体分析法对21个“中国春”单体与“高优503”小麦品种(系)杂交的F_1代进行细胞学观察,选取单体植株观察其芒性状表现并进行分析,得出2A组合F_1代的单体植株有芒而其他组合无芒,“高优503”的2A染色体上存有促进芒表达的隐性基因。
The F_1 generation of 21 “Chinese Spring” hybrids and “Gaoyou 503” wheat cultivars (lines) were analyzed by single cell cytology. Monoclonal plants were selected to observe and analyze the performance of their traits. Monosomic plants of F_1 hybrids were found to be mantle and other combinations did not have mandarin, and the chromosome 2A of “Youyou 503” contained the recessive genes that promote mandarin expression.