obsolete decreased duration of mitotic G1/S phase transition true cell cycle progression through the G1/S phase transition: increased rate OBSOLETE. A cellular process phenotype in which the duration of progression through the G1/S transition of the mitotic cell cycle is shorter than normal. decreased duration of mitotic G1/S phase transition during vegetative growth 2011-07-14T06:06:09Z increased rate of cell cycle progression through mitotic G1/S phase transition decreased duration of cell cycle progression through mitotic G1/S phase transition This term was made obsolete because a cell cycle transition is a time point, rather than a stage or phase that can have a duration. FYPO:0000397 reduced duration of mitotic G1/S phase transition midori