The segregation ratio of wild type plants to mutant plants in the population degenerated from heterozygotes was 3:1, indicating that the mutant is controlled by a single recessive gene, and designated tentatively as TOR.

• 同时，杂合株系呈典型的3:1分离比例，表明该突变性状由单隐性基因控制，并将该突变体暂时命名为TOR。