Molecular Cloning of GbCBF6 Gene and Its Expression in Cotton(Gossypium barbadense L.) The Tolerance to Abiotic Stresses Mediated by DREB-like Transcription Factors in Nicotiana tabacum Manufacture of dsDNA Microarrays of DRE Cis-acting Element Cloning and Expression Characterization of a SbDREB gene from Salicornia bigelovii Torr.