In further studies on genes h (starchy endosperm) and fl2 (floury endosperm), h was found to be hypostatic to su1 and wx; and fl2 hypostatic to su1. Gene h is linked with fl2 with 4% crossing-over, and with d1, with 25% crossing-over. This puts both genes in chromosome 3, but the exact loci are not yet determined. If it is assumed that h is approximately at 60, then fl2 would be near ts4 or Rg.
W. J. Mumm