**4. Conclusion**

Before creating phenotypes, traditional cultivar development in plant breeding necessitates understanding of biological function. GS enables breeding without mapping and characterization of genes/QTLs at a low cost in order to gain functional data. GS can result in high genetic gain per unit time in crop breeding programs by enhancing GEBV accuracies through employing dense markers, increasing training population size, trait heritability, adopting a good GEBV prediction model, and using imputation techniques.
