Tight linkage between the Fin locus for plant habit and the Z locus for partly colored seedcoat patterns in common bean

Linkage between the Fill locus controlling plant habit and the Z locus controlling partly colored seedcoats in common bean (Phaseolus vulgaris L.) was studied in the F-2 and F-3 progenies from the cross 't virgarcus BC(3)5-543' (determinate habit, virgarcus pattern of partly colored seeds,fin t z) x 'Steuben Yellow Eye' (indeterminate habit, sellatus pattern of partly colored seeds, Fin t z(sel)). The heterozygous genotype x(sel)/z produces the piebald pattern of partly colored seeds, whereas Fin is completely dominate to fin. Selection was made in the F-e for crossover phenotypes: indeterminate habit With virgarcus seeds or determinate habit with piebald seeds, Linkage calculations were based on crossover genotypes confirmed by F-3 progeny tests grown in the greenhouse, The recombination percentage between Fin and Z was 1.032 +/- 0.33 map units, The gene symbol z(sel) is proposed, where t Z gives the expansa partly colored seedcoat pattern, t z(sel)gives sellatus, and t z gives virgarcus.