Gene(s) Generation Marker(s) employed Marker alleles No. of plants Mean yield Lr28 F2 Xwmc497 § R 62 9.32± 0.1842 Xwmc497 § H 132 9.23 ± 0.1933 Xwmc497 § S 60 9.40 ± 0.2028 Lr48 F2 S3# + 70 9.22 ± 0.2143 S336 ¶ -     S3# + 117 9.32 ± 0.1352 S336 ¶ +     S3# - 67 9.01 ± 0.2205 S336 ¶  +     Lr28 + Lr48 F2 Xwmc497 § R 14 9.49 ± 0.1827 S3# +     S336 ¶  -     PBW343-Lr28 Parent Xwmc497 § R 25 9.50 ± 0.1314 CSP44-Lr48 Parent S3 ¶ + 25 8.78 ± 0.0980 S336 ¶ -

Table 1: Mean grain yield of the F2 plants pooled with reference to the segregation of the resistant alleles of the marker loci. §Codominant microsatellite marker; R: Homozygous resistant; ¶Dominant RAPD marker; H: Heterozygous resistant; S: Homozygous susceptible; +: Presence of RAPD marker fragment; -: Absence of RAPD marker fragment.