However, this method does not enable differentiation between genes that have similar infection type profiles, e.g., Lr1, Lr3 and Lr10. Considering the minimum number of genes required to explain phenotypes (McVey and Long 1993; Singh 1993b), gene postulation and molecular marker analyses of the WC identified 14 known seedling resistance genes present either as single genes or in combinations: Lr1, Lr2a, Lr2c, Lr3, Lr9, Lr10, Lr14a, Lr14b, Lr15, Lr20, Lr26, Lr28 and Lr3ka and/or Lr30. This evidence concerns the gene LRP5 and infection.