TABLE 3

Orthogonal contrasts for design III with two markers

ContrastEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded ImageEmbedded Image
c1111000−1−1−1
c2111−2−2−2111
c310−110−110−1
c41−211−211−21
  • Embedded Image is the genotypic mean of the backcross progenies from F2 parents with marker genotype g (see appendix a) backcrossed to parental line j (j = 2, 1). Only Embedded Image means are presented, and the coefficients for Embedded Image are the same as for Embedded Image for c1c4. Contrasts c5c8 are c5 = c1 × c3, c6 = c1 × c4, c7 = c2 × c3, and c8 = c2 × c4. Contrast c9 has u9g1 = 1 and u9g2 = −1. Contrasts c10c17 have the same coefficients as c1c8 for Embedded Image, respectively; for Embedded Image the coefficients are the same but with opposite signs.