Gene-editing techniques have helped to identify a temperature tolerance factor that may protect wheat from the increasingly unpredictable challenges of climate change.
Researchers in the group of Professor Graham Moore at the John Innes Center made the discovery during experiments looking at wheat fertility in plants exposed to either high or low temperatures. The paper, "DMC1 stabilizes crossovers at high and low temperatures during wheat meiosis," appears in Frontiers in Plant Science.
Wheat fertility and therefore yield is highly influenced by temperature, particularly the initial stages of meiosis when chromosomes from parent cells cross over and pair to create seeds for the next generation.
Meiosis in wheat functions most efficiently at temperatures between 17–23° centigrade. It is known that developing wheat does not cope well with hot temperatures and can also fail during low summer temperatures.