Four genes in maize are closely linked to each other on

Last updated: 8/24/2023

Four genes in maize are closely linked to each other on chromosome 3 Homozygous recessive mutants for each gene cause visible highly penetrant phenotypes a1 and a3 mutants have anthocyaninless kernels sh2 has shrunken kernels w19 has white leaves Pairwise crosses between mutants have determined following recombination frequencies between these genes a3 and sh2 6 al and a3 4 9 a1 and sh2 1 1 a1 and w19 3 9 sh2 and w19 2 8 The a1 gene is at 170 9 cM on the composite chromosome 3 genetic map and the sh2 gene is at 172 CM What are the positions of the other two genes nd the w