The development of recombinant DNA technology and methods for transferring recombinant genes into plants has brought about significant advances in plant science. First, it has allowed investigation, using reporter genes, into the transcriptional regulation of plant genes a key to the under standing of the biochemical basis of growth and development in plants. Second, gene transfer technology has facilitated the molecular cloning, by tagging genomic sequences, of important genes (e. g., homeotic genes) whose gene products control the normal pattern of growth and differentia tion of plants....

The development of recombinant DNA technology and methods for transferring recombinant genes into plants has brought about significant advances in plant science. First, it has allowed investigation, using reporter genes, into the transcriptional regulation of plant genes-a key to the under- standing of the biochemical basis of growth and development in plants. Second, gene transfer technology has facilitated the molecular cloning, by tagging genomic sequences, of important genes (e. g., homeotic genes) whose gene products control the normal pattern of growth and differentia- tion of plants....