One notable example of how genetics has contributed to the improvement of a plant species is in the case of maize (corn). Maize has undergone significant genetic improvements through selective breeding and modern genetic engineering techniques.
Genetic studies have identified genes responsible for traits such as increased yield, disease resistance, and drought tolerance in maize. Researchers have been able to selectively breed or genetically modify maize varieties to enhance these desirable traits.
Through genetic studies, scientists have discovered genes that grant resistance to various pests and diseases affecting maize.