Flow cytometric determination of ploidy levels in embryos of GA deficient, ABA deficient mutant and isogenic wild type tomato (Lycopersicon esculentum Mill. cv. Moneymaker) seeds revealed that, large amount of 2C DNA signals existed both in wild type and GA deficient mutant seeds, showing that most cells had arrested in the cell cycle at presynthesis G1, whereas a relative amount of 4C proportion which is a sign of seed germination was found in ABA deficient mutant seeds, indicating that endogenous ABA play a role in regulating the switch from development to germination in seeds. DNA replicati...
