Advantages of MAB: knowledge
Using markers can also give us a deeper understanding of the traits we are selecting for and HOW they work. This could allow for more efficient selection in the future.
For example, once a marker – trait correlation is established, the marker can be used to clone the gene, and more thoroughly study its action. In tomato, a major QTL affecting fruit weight was cloned and found to control carpel cell number early in fruit development (Frary et al. 2000).