The plant homeotic protein AGAMOUS controls the expression of the chromatin modifier GIANT KILLER, which fine-tunes the expression of multiple genes downstream of AGAMOUS in reproductive organ patterning and differentiation (see Ng et al., e1000251). A scanning electron micrograph of an Arabidopsis pistil shows that the ectopic expression of GIANT KILLER partially mimics the loss of function mutant of ETTIN (meaning "giant").
Image Credit: Kian-Hong Ng, Temasek Life Sciences Laboratory
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