Total genomic DNA was extracted from leaf material using a cetyltrimethylammonium bromide (CTAB) procedure modified by.The phytochrome c (PHYC) gene was amplified using primers phyc515f-br AAG CCC TTY TAC GCT ATC CTG CAC CG and
phyc1699r-br ATW GCA TCC ATT TCA ACA TCT TCC CA . Internal primers were used for sequencing