The incorporation of exotic DNA from wild relatives into wheat results in a remarkable yield increase of up to 50%, even in hot weather, surpassing elite lines without these genes. Amid a year of record-breaking temperatures, research from the Earlham Institute in Norwich and the International Ma
With a world facing the consequences of climate change, climate-resilient crops are becoming increasingly critical. By having crops that can withstand extreme environmental stressors, food security is improved, as farmers are able to grow crops even in challenging conditions. This, in turn, helps to address the issue of global hunger, as food production remains stable even in the face of a changing climate.
There is growing uncertainty around the ability of major food crops to continue to meet global demand as temperatures rise and weather events become more extreme. “To make matters worse, developing new varieties can take a decade or more so acting quickly is vital.” “There’s a well-recognized risk of bringing in more undesirable than desirable traits, so this result represents a significant breakthrough in overcoming that barrier and the continued utilization of genetic resources to boost climate resilience.”
The researchers sequenced the plants to locate specific genetic differences responsible for the increased heat tolerance. They identified genetic markers that could allow the targeted introduction of this beneficial exotic DNA into elite lines, offering a quick way to improve climate resilience and mitigate against widespread crop failures.
The researchers suggest breeding programs incorporate the heat tolerance traits as a pre-emptive strategy to produce wheat crops that can cope with a less predictable climate.
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