A New Window into Transgene Silencing in Plants: mechanisms of copy-number independent, 5' sequence dependent, post-transcriptional silencing in a complex polyploid. Silencing of introduced genes is a major problem limiting plant molecular improvement. Sugarcane, a complex polyploid, shows the most efficient transgene silencing ever observed in plants. Silencing operates on the RNA, depends on the upstream sequence of the gene, and is independent of copy number. Other plant species develop endop ....A New Window into Transgene Silencing in Plants: mechanisms of copy-number independent, 5' sequence dependent, post-transcriptional silencing in a complex polyploid. Silencing of introduced genes is a major problem limiting plant molecular improvement. Sugarcane, a complex polyploid, shows the most efficient transgene silencing ever observed in plants. Silencing operates on the RNA, depends on the upstream sequence of the gene, and is independent of copy number. Other plant species develop endopolyploidy with age, and show unpredictable or patchy silencing. We speculate that differential silencing is a natural control mechanism in the exploitation of polyploidy in plants. The sugarcane system provides an exceptional opportunity to identify the sequences that trigger and protect from silencing, and to develop approaches to avoid the problem.Read moreRead less
Creation of a non-venomous honey bee. On average, two Australians die from bee stings each year. Our goal is produce honey bees that do not have a dangerous sting.
Gene targeting in the rat germ cell. The rat plays a central role in both medical research and the drug development process. Unfortunately key technologies supporting the genetic modification of the rat are currently unavailable. The development of such technology would dramatically improve the utility of the rat in many areas of medical research as well as for the pharmaceutical industry. This project proposes to develop methods to perform gene targeting experiments in the germ cells of the ....Gene targeting in the rat germ cell. The rat plays a central role in both medical research and the drug development process. Unfortunately key technologies supporting the genetic modification of the rat are currently unavailable. The development of such technology would dramatically improve the utility of the rat in many areas of medical research as well as for the pharmaceutical industry. This project proposes to develop methods to perform gene targeting experiments in the germ cells of the male rat. Successful manipulation of these cells will represent a major breakthrough towards the ultimate goal of manipulating the rat genome.Read moreRead less