Description
Arabidopsis bHLH transcription factor PIF1 has been shown function as a negative regulator of Chlorophyll biosynthesis. Pif1-2 mutant accumulate more protochlorophylide during prolonged dark growth condations, therefore the comparation between Wt and pif1-2 mutant will help us find the PIF1 target genes in Chlorophyll biosynthesis pathway at genome wide level under the dark grown conditions.