What is "marker-assisted selection"?

Marker-assisted selection is a breeding technique that utilizes molecular markers to identify and select plants or animals that possess desirable traits. This approach integrates genetic information with traditional breeding methods, allowing for a more precise selection process.

In marker-assisted selection, specific genes associated with certain traits are identified using molecular markers, such as DNA sequences. This enables breeders to screen large populations and select individuals that carry the desired genetic characteristics, even before those traits are phenotypically expressed. This method accelerates the breeding process, improves the efficiency of creating new varieties, and helps to ensure the desired traits are passed on to the next generation.

Other options like eliminating pests, soil improvement, and organic farming strategies focus on different aspects of agricultural practices or pest control, which do not involve the use of genetic markers for breeding decisions. Therefore, they do not align with the definition and application of marker-assisted selection in agricultural biotechnology.