Patent ID: 7435873

Claim:
A method for determining if a soybean has Rps8-derived Phytophthora sojae resistance, comprising: (a) analyzing genomic DNA from the soybean for the presence of a combination of molecular markers on major linkage group F which are associated with trait locus Rps8, whereby detecting the presence of the molecular markers provides an indication that said Rps8-derived P. sojae resistance is present in the soybean; and (b) confirming that the soybean has Rps8-derived P. sojae resistance by inoculating the soybean with one or a combination of P. sojae pathotypes vir1a, 1b, 1c, 1d, 1k, 2, 3a, 3b, 3c, 4, 5, 6 or 7 to which the soybean would be susceptible if the soybean did not have Rps8-derived P. sojae resistance; wherein Rps8-derived P. sojae resistance confers resistance to all P. sojae pathotypes vir1a, 1b, 1c, 1d, 1k, 2, 3a, 3b, 3c, 4, 5, 6 and 7.