This invention declares the function and application of Vernicia montana gene encoding diacylglycerol acyltransferase (DAGT) on promoting plant biomass. The worth characters of this gene were proved in several transgenic plants overexpressing this gene including Arabidopsis thaliana, Jatropha curcas and Brassica rape, and elucidate its function on improving the yield. The application of this invention declares the protected right including whole plants, any organs, tissues, cell and derivates from the transformed plants harboring this gene.本發明係關於促進植物生物量的基因及其應用,其特徵在於該基因係為千年桐(Vernicia montana)第二型二醯基甘油醯基轉移蛋白基因(VmDGAT2),並分別具有如SEQ ID No:1之胺基酸序列,或分別具有如SEQ ID No:2之核苷酸序列;本發明亦提供千年桐第二型二醯基甘油醯基轉移蛋白DGAT2基因的應用,其特徵在於藉由將該基因於植物中大量表現(Overexpression)後,可促進植物生物量;此外,本發明之應用可進一步包含含有上述基因、或其衍生物的轉殖植物或該轉殖植物之部分器官、組織或細胞,及促進植物生物量之方法。
