GENETIC-ANALYSIS OF A POLYEMBRYONIC MUTANT IN RYE

We have obtained one plant regenerated from rye tissue culture which s howed a high percentage of polyembryonic seeds in its progeny. The mut ation inducing the development of extra embryos is also influencing er roneous cell division, mitosis and meiosis. The genetic analysis indic ated that the aptitude for polyembryonic seed formation is a heritable trait controlled by a dominant gene. However, for expression of the p henotype the female parent should have a specific cytoplasm.