Wild rice drought-resisting gene and its coded protein and application

The present invention discloses wild rice drought-resisting gene and its coded protein and application. The gene has one of the following nucleotide sequences: 1. DNA sequence of SEQ ID No. 2 in the sequence list; and 2. the nucleotide sequence capable of hybridizing in high strict condition with the DNA sequence limited by SEQ ID No. 2 in the sequence list. The gene coded protein has one of the following amino acid residue sequence: 1. SEQ ID No. 1 in the sequence list; and 2. the amino acid residue sequence of SEQ ID No. 1 through substitution, deletion and/or addition of 1-10 amino acid residues and coding protein with function of regulating plant drought-resisting property. The drought-resisting gene of the present invention provides foundation for artificial control of stress tolerance related gene, and will play an important part in breeding plant, especially rice, with enhanced stress tolerance.