Fig. 4.

Heterochronic genes control the stem cell fate. The graph represents the level of sensitivity or insensitivity of the heterochronic mutants compare with WT based on the data reported in Table 1. The x axis shows the fold change of seam cell number decrease by lit-1(RNAi) or increase by or pop-1(RNAi) (Table 1). Strains are classified by the fold change (either decrease or increase, compared with the WT) in seam cell number that they displayed after pop-1(RNAi) or lit-1(RNAi) as follows: insensitive (blue bars) for less than twofold change, sensitive (yellow bars) for fold change between 2-fold and 3.5-fold, and hypersensitive (red bars) for fold change greater than 3.5. NT, not tested. *The fold decrease of seam cell number by lit-1(RNAi) for lin46(ma146);lin-28(n719) strain is −37.4.