Background selection in MABC helps in:
Background selection accelerates recovery of recurrent parent genome beyond theoretical expectation using genome-wide molecular markers distributed across all chromosomes. While foreground selection tracks donor gene, background selection scans chromosomes unlinked to target using polymorphic SSR or SNP markers distinguishing recurrent and donor alleles by size or sequence. In each backcross generation, individuals carrying target gene are genotyped across background, and those with highest proportion of recurrent parent alleles are chosen as parents for next backcross. Conventional backcrossi
Ref: Frisch M et al. 1999 Crop Sci – background selection for RPG recovery; Ribaut JM MAS strategies