Cloning of kfpMYB Gene and Its Promoter in Korla Fragrant Pear(Pyrus sinkiangensis)and Determination Their Responses to Hormones Cloning of kfpMYB Gene and Its Promoter in Korla Fragrant Pear(Pyrus sinkiangensis)and Determination Their Responses to Hormones Cloning and Characterization of PeMYBL1, an R2R3 MYB Gene from Poplar Characterization and Expression of PeMYBF1 Encoding a R2R3-MYB Transcription Factor from Populus euramericana Clone and Expression of a Lignin Biosynthesis-related Transcription Factor Gene PgMYB in Pomegranate Seed Coat