Soybean root and stem rot caused by the soil-borne oomycete pathogen Phytophthora sojae is one of the most destructive diseases of soybean. In the past decades, a few genes/alleles conferring resistance to Phytophthora sojae (designated as Rps genes) were used to develop resistance soybean cultivars - an economical and effective approach to protecting soybean from this disease. However, the resistance contributed by individual Rps gene is non-durable and usually effective only for approximately 10 years due to the rapid variation of P. sojae races. A promising strategy for breeding more durable resistance is to stack multiple, broad spectrum, resistance genes in single cultivars. The...
Further progress in incorporating different Rps genes/alleles into elite soybean cultivars.
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