Chromosome mapping of a speltoid suppression gene of Triticum aestivum L. based on partial deletions in the long arm of chromosome 5A

摘要: 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 Chinese Spring having long arm Aegilops longissima chromosome. With three these speltoid chromosome mapping was conducted for suppression gene Q wheat. The C-banding study demonstrated that character always associated with partial deletions 5A. abnormal 5A least deletion retained intercalary C-band located at about 54 per cent from centromere. Therefore, it properly decided situated somewhere distal 46 region arm.