Application of tomato SlFolB gene in increasing plant yield

The invention belongs to the technical field of biology, and particularly discloses an application of a tomato SlFolB gene in increasing the yield of plants, the tomato SlFolB gene is obtained through plant genome cloning, an SlFolB overexpression vector is constructed, an SlFolB overexpression transgenic line is obtained through an agrobacterium tumefaciens-mediated method, and by comparing the SlFolB overexpression transgenic line with a wild type, the yield of the plants is increased. The yield of an overexpressed strain is higher than that of a wild type, that is to say, the SlFolB gene can improve the plant yield, and gene resources are provided for high-yield molecular breeding of crops. 本发明属于生物技术领域，具体公开了番茄SlFolB基因在提高植物产量中的应用，本发明通过植物基因组克隆获得番茄SlFolB基因，构建了SlFolB过表达载体，利用农杆菌介导的方法获得SlFolB过表达转基因系，通过和野生型进行比较，发现过表达株系的产量高于野生型，也就是说SlFolB基因能够提高植物产量，为作物丰产分子育种提供基因资源。