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Table 4 Number of plants generated and recurrent parent genome recovery in the backcross generations during marker aided introgression of mutant AHAS allele in PB 1121

From: Marker Assisted Development and Characterization of Herbicide Tolerant Near Isogenic Lines of a Mega Basmati Rice Variety, “Pusa Basmati 1121”

Generation No. of plants generated No. of plants carrying mutant AHAS allele in heterozygous/ homozygous state No. of selected plants/families Genome recovery (%) Mean Observed RPG Recovery (%) Expected Average Recovery (%)
F1 15 15b 1 a   
BC1F1 262 128b 1 70.98–80.35 75.66 75
BC2F1 188 94b 1 81.25–92.85 87.05 87.5
BC3F1 152 73b 1 93.30–95.08 94.19 93.8
BC4F1 122 58b 1 94.64–98.21 96.42 96.9
BC4F2 384 88c 40 a
BC4F3 40 40c 12 a
BC4F4 12 12c 12 98.66–99.55 99.10
  1. aNot estimated
  2. bPlants with mutant AHAS allele in heterozygous state
  3. cPlants homozygous for mutant AHAS allele
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