Plant ALS mutant gene, encoding protein thereof and preparation method of anti-ALS inhibitor herbicide plant

The invention relates to the technical field of agricultural biology, in particular to a plant ALS mutant gene, an encoding protein of the plant ALS mutant gene and a preparation method of an anti-ALS inhibitor herbicide plant. The ALS mutant protein provided by the invention can enable various plants such as rice and the like to generate relatively high resistance to ALS inhibitor herbicides, can be used for cultivating herbicide-resistant plant varieties, can also be used for developing a plant genetic transformation screening system taking herbicide resistance genes as a screening marker, and has a relatively good application prospect. 本发明涉及农业生物技术领域，具体涉及植物ALS突变基因、其编码蛋白以及抗ALS抑制剂类除草剂植物的制备方法。本发明提供的ALS突变蛋白可使得水稻等多种植物对ALS抑制剂类除草剂产生较高的抗性，可用于抗除草剂植物品种的培育，还可用于以除草剂抗性基因为筛选标记的植物遗传转化筛选系统的开发，具有较好的应用前景。