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Result of Stadler's Experiment on the Mapping of the First Three Gene Loci of a Corn Chromosome


Number 9 according to modern count. The gene loci are C (colour), Sh (shrunken) and Wx (waxy). Capitals: dominant alleles, lowercase letters: recessive. The depicted crossings (at the top of the scheme) resulted in an F1 generation (middle) with the indicated segregation ratios (and genotypes). From these he calculated the arrangement of the genes on the chromosome shown at the bottom of the scheme. (according to L. J. STADLER, 1926).

© Peter v. Sengbusch - b-online@botanik.uni-hamburg.de