Maize Mutation (IMAGE) Cold Spring Harbor Laboratory Caption The tip (grey) of a developing ear of maize grows abnormally because of mutations in genes that impact the plant's growth as well as its immune defenses. The ability to control how these genes work in combination, could increase kernel numbers and crop yields. Credit Jackson lab/CSHL, 2019 Usage Restrictions Attribution needed License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.