Better breeding leveraging more biology

Powell OM, Hickey L, Tomura S and Cooper M

Trends in Plant Science
https://doi.org/10.1016/j.tplants.2026.05.004

Highlights

  • Increasing climate-driven variability of cropping systems is testing the limits of current statistical models to predict crop performance across environments.
  • To improve long-term genetic gain of breeding programs, prediction models must capture plant-environment interactions across diverse genetic backgrounds, environmental conditions and management practices.

  • Plant breeding programs currently underutilise biological knowledge from basic science about how plants interact with the environment.

  • Integrating biological knowledge into predictive models offers new opportunities for the plant science community to contribute directly to crop improvement.

  • Hierarchical prediction models link mechanistic knowledge of traits with breeding outcomes, allowing systematic testing of how plant science discoveries influence crop performance and genetic gain in breeding programs.

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