Abstract
The genes controlling the synthesis of the high-molecular-weight subunits of glutenin on the long arms of chromosomes 1A and IB were mapped to the ω-gliadin genes on the short arms by analysing the progeny of three test crosses by sodium dodecyl sulphate, polyacrylamide-gel electrophoresis. Only very weak linkages were detected: the percentage recombination ranged from 39% to 47% and as the values did not significantly differ from each other, the data was pooled. A mean recombination of 43% was obtained and the map distance between glutenin and gliadin genes was calculated to be 66 cM. The analysis of three crosses involving telocentric lines revealed that the glutenin subunit genes on chromosomes 1A, IB and ID are tightly linked to the centromere, the mean map distance being 9.0 cM.
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