5A染色体の長腕の部分欠失に基づくTriticum aestivum L.のスペルトイド抑制遺伝子の染色体マッピング〔英文〕

概要

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Speltoid mutants, which have slender spikes, were found in the offspring of a cross, euploid common wheat, Triticum aestivum cv. ‘Chinese Spring’ (_??_)X an alien addition line of Chinese Spring having the long arm of an Aegilops longissima chromosome. With the offspring of three of these speltoid mutants, chromosome mapping was conducted for a speltoid suppression gene Q of common wheat. The C-banding study demonstrated that the speltoid character was always associated with partial deletions in the long arm of chromosome 5A. The abnormal 5A with the least deletion retained the intercalary C-band which was located at about 54 per cent of the long arm from the centromere. Therefore, it was properly decided that the Q gene was situated somewhere in the distal 46 per cent region of the 5A long arm.
日本遺伝学会の論文