INHERITANCE OF 2 TRAITS RELATED TO STEM C OLOR IN RYE SECALE-CEREALE L

Two rare mutant forms were found in progeny of the same rye hybrid. On e of them was characterized by brown culm, and another, by lightly col ored nodes at earing time. Each of the mutant forms was inherited as m onogenic recessive. Gene symbols In and cb were proposed for light nod es and brown culm, respectively. One more gene, the recessive allele o f which is epistatic to the recessive allele of the cb gene, may also exist. Both the In and ch genes were inherited independently of the ge nes vi1 (anthocyanless), epr1 (waxless), el1 (liguleless), Ddw1 (domin ant short stem), and of each other. The In gene was not linked with th e genes ct2 (dwarf) and R (red auricles), and the cb gene was not link ed with the genes mn (multinodosum) and np (dwarf).