Restriction Mapping article 10 Mutation 8 Plasmids 8 genetics 8 glucan 8 restriction mapping 8 Glucans 6 mutation 6 pathogenicity 6 Base Sequence 4 Carrier Proteins 4 Cell Membrane 4 Chromatography, Gel 4 Chromosomes, Bacterial 4 Cloning, Molecular 4 DNA Transposable Elements 4 DNA, Bacterial 4 Escherichia coli 4 Genes, Bacterial 4 Membrane Proteins 4 Molecular Weight 4 Peptide Fragments 4 Phenotype 4 Rhizobium 4 Rhizobium radiobacter 4 carrier protein 4 cell membrane 4 gel chromatography 4 membrane protein 4