Gene stacking: Approach of genetic engineering

Gene stacking is the process of addition of two or more gene of interest into a single plant. The combination or stacking of different traits or genes in plants is rapidly gaining popularity in biotech crop production. The new evolved trait is known as stacked trait and the crop is known as biotech stacked or simply stacked. This can be accomplished in many ways, one of which is gene pyramiding. Biotech stacks give crops a larger genetic and agronomic boost, allowing them to perform better in challenging farming situations. Biotech stacks are designed to increase productivity by overcoming biotic and abiotic challenges like as insect pests, diseases, weeds, and environmental stress. This review will explain about the gene stacking principle, the need for biotech stacking, and the many gene stacking methods.