Using resistant cultivars of soybean is the most efficient and environmentally friendly way of controlling soybean cyst nematode (SCN). Soybean plant introduction (PI)494182 is a new source of resistance to SCN races 3 and 5. The objectives of this study were to identify QTLs underlying SCN resistance in this new source of resistance. The mapping population consists of 160 F3:4 lines derived from the cross PI 494182 x Skylla. Skylla is a high yielding soybean cultivar and is susceptible to SCN races 3 and 5. The mapping population is currently evaluated for resistance to SCN races 3 and 5 and genotyped with over 100 polymorphic simple sequence repeat (SSR) markers
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