Booroola Gene

Gene mapping is essential as the foundation for genetic manipulation. Thus far, however, few specific genes of significance to animal agriculture have been identified, isolated or mapped. one example of a gene that is beginning to be understood, although it has not been specifically isolated, is he BOOROOLA GENE from Australian merino sheep. This gene boosts the incidence of twinning and triplets in sheep, giving an overall 20-40 percent increase in the number of lambs weaned. Introducing the booroola gene into other sheep and cattle could offer a fast, reliable way to increase the productivity of ewe and cow herds. Although the gene could be crossed into some breeds by sexual breeding, its introduction by molecular gene transfer would be faster and more important, it would allow the trait to be passed to a wider range of livestock. Mapping of the booroola gene is helping scientists determine more precisely how the gene operates and is also aiding in its cloning. Scientists may then attempt to transfer the gene to other valuable livestock species.