In maize, a strain homozygous for two recessive mutations, liguless (lg) and glossy seedling (gl) was crossed to another strain homozygous for a dominant allele (B) the puts red pigment into the stem and leaves. The F1 plant was backcrossed to the liguless glossy parental strain, and the seeds from that cross were of the following phenotypes and numbers:
Ig gl + (liguleless, glossy) 172 ++ B (Red) Ig gl B (liguless, glossy, Red) 56 + + + (wild type) Ig+B (liguless, Red) + gl + (glossy) Ig++ (liguleless) + gl B (glossy, Red) What is the distance in map units) between Ig and gl (taken to 1 decimal place)?