| a comparison of constitutive promoters for expression of transgenes in alfalfa (medicago sativa). | the activity of constitutive promoters was compared in transgenic alfalfa plants using two marker genes. three promoters, the 35s promoter from cauliflower mosaic virus (camv), the cassava vein mosaic virus (csvmv) promoter, and the sugarcane bacilliform badnavirus (scbv) promoter were each fused to the beta-glucuronidase (gusa) gene. the highest gus enzyme activity was obtained using the csvmv promoter and all alfalfa cells assayed by in situ staining had high levels of enzyme activity. the 35s ... | 2004 | 15517994 |