C | CHEMISTRY; METALLURGY |
12 | BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING |
N | MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA |
15 | Mutation or genetic engineering; DNA or RNA concerning genetic engineering, vectors, e.g. plasmids, or their isolation, preparation or purification; Use of hosts therefor |
09 | Recombinant DNA-technology |
63 | Introduction of foreign genetic material using vectors; Vectors; Use of hosts therefor; Regulation of expression |
79 | Vectors or expression systems specially adapted for eukaryotic hosts |
82 | for plant cells ; , e.g. plant artificial chromosomes (PACs) |
8216 | Methods for controlling, regulating or enhancing expression of transgenes in plant cells |
8222 | Developmentally regulated expression systems, tissue, organ specific, temporal or spatial regulation |
823 | Reproductive tissue-specific promoters |
8231 | Male-specific, e.g. anther, tapetum, pollen |