Rice drought tolerance related transcription factor OsMDR and coding gene and application thereof

The invention belongs to the technical field of agricultural biology, and particularly relates to a rice drought tolerance related transcription factor OsMDR as well as a coding gene and application thereof. The amino acid sequence of the rice drought tolerance related transcription factor OsMDR is as shown in SEQ ID No: 1. The overexpression of the OsMDR reduces the drought tolerance correlation of the transgenic rice in different development stages, and changes the physiological indexes related to stress tolerance, so that the overall physiological level of cells is not beneficial to drought tolerance, and the expression quantity of the drought tolerance related marker gene is reduced. Therefore, the OsMDR gene in rice can negatively regulate the drought tolerance of the plant, and can be used for cultivating drought-tolerant related varieties of crops. 本发明属于农业生物技术领域，具体涉及水稻耐旱相关转录因子OsMDR及其编码基因和应用。所述水稻耐旱相关转录因子OsMDR的氨基酸序列如SEQ ID No:1所示。OsMDR过表达降低了转基因水稻在不同发育时期的耐旱相关性，同时改变了耐逆相关的生理指标，使细胞的整体生理水平不利于耐旱，降低了耐旱相关标记基因的表达