Aphid resistance in soybean

Patent Pending Several varieties of soybean have demonstrated resistance to the soybean aphid. Resistance may be conferred by antibiosis, antixenosis, or tolerance. In some instances, such as with the soybean cultivars 'Dowling', 'Jackson', and 'Palmetto', resistance to the soybean aphid results from a combination of both antibiosis and antixenosis.[38] In the 'Dowling' cultivar, resistance is conferred by a single dominant gene (Rag1).