Q.1
A specialized form of selection based on genome wide distributed markers, in which the information from marker genotype data covering the entire genome forms the basis of selection is termed as
(A) . Genomic selection
(B) . Genome wide selection
(C) . Genome wide association studies
(D) . Marker-assisted recurrent selection
Choose the correct answer from the options given below:
- Genomic Selection (GS) / Genome-Wide Selection (GWS): Formulated by Meuwissen et al. (2001), where high-density, genome-wide markers are utilized simultaneously to capture all QTL effects (both major and minor) across the entire genome to predict Genomic Estimated Breeding Values (GEBVs).
- Comparison:
- GWAS (C): Genome-Wide Association Study is a genetic mapping approach to detect marker-trait associations, not a selection breeding methodology.
- MARS (D): Marker-Assisted Recurrent Selection selects only for a pre-identified subset of statistically significant QTL markers.
- Conclusion: Statements (A) and (B) only describe this specialized genome-wide selection system. (Correct answer: Option 2)
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