Plant expression vector pPCHf,pPCCM were constructed through replaced the GUS in pPCHS by flower color gene Hf2 and floral-specific transcription factor CMB2 respectively.

• 将花特异表达启动子PCHS分别与花色基因Hf2、花特异转录因子CMB2构建植物表达载体pPCHf、pPCCM,将组成型启动子CaMV35S与花特异转录因子CMB2构建植物表达载体pCM。