Brassica rapa/physiology; Cold Temperature; RING Finger Domains; Salt-Tolerant Plants/metabolism; Stress, Physiological; Abscisic Acid/pharmacology; Adaptation, Physiological; Agrobacterium tumefaciens/genetics; Agrobacterium tumefaciens/metabolism; Amino Acid Sequence; Base Sequence; Brassica rapa/genetics; Brassica rapa/metabolism; Chlorophyll/metabolism; Cloning, Molecular; Dehydration/metabolism; Gene Expression Regulation, Plant; Genes, Plant; Germination; Molecular Sequence Data; Phylogeny; Plant Proteins/genetics; Plant Proteins/metabolism; Plant Roots/drug effects; Plant Roots/genetics; Plant Roots/metabolism; Plant Roots/physiology; Plant Shoots/drug effects; Plant Shoots/genetics; Plant Shoots/metabolism; Plant Shoots/physiology; Plants, Genetically Modified/genetics; Plants, Genetically Modified/metabolism; Plants, Genetically Modified/physiology; Recombinant Fusion Proteins/genetics; Recombinant Fusion Proteins/metabolism; Salt-Tolerant Plants/genetics; Salt-Tolerant Plants/physiology; Seeds/genetics; Seeds/metabolism; Seeds/physiology; Sodium Chloride/pharmacology; Nicotiana/genetics; Nicotiana/metabolism; Nicotiana/physiology; Transcription Factors/genetics; Transcription Factors/metabolism; Transcription, Genetic