Breeder-ready genetic tools for sustaining wheat yields under heat stress

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Yield losses in wheat due to heat stress are increasing with climate change, driving an urgent need for new heat-tolerant varieties; however, few resources for heat tolerance are available for use in breeding. This research aims to use comprehensive genetic and agronomic approaches to provide breeders with the tools and evidence to select WtmsDW, a newly discovered genetic region that protects pollen fertility and sustains grain yield under heat stress. These tools are expected to significantly boost productivity for the $9.8B Australian wheat industry, benefitting rural communities and industry partners and supporting food security, both directly and through longer-term extension of novel heat tolerance mechanisms to other crop species.