FIVE GENES LOCATED ON CHROMOSOME 4 OF THE TOMATO

Abstract

The gene for broadleaf has been the only gene known to be on chromosome 4 of the tomato. Four other genes are shown to be linked with broadleaf. These are wiry (w1), which distorts the leaves and flowers; clausa (clau), which causes excessive proliferation of the pinnae; divergens (di) which affects plant growth and stem color; and stamenless (sl1), which causes the stamens to be absent or greatly reduced. The genes w1, clau, and di give mongenic ratios which are deficient in number of mutants. The order of the genes on the basis of F2 data is w1clau 39 e 21 di 2 sl1. The genes tf, ao, rv, and ah are not in this group.