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New model predicts which maize grains will be best in a changing climate

By 25th May 2019 June 10th, 2019 No Comments

How can we know whether a particular germplasm is adapted to a given environment and will yield a good crop? This yield depends on complex interactions between the genotype of the germplasm and environmental conditions.

Researchers at INRA led by François Tardeau and co-workers at Wageningen University and Research in the Netherlands have now developed a model that allows them to predict the yields of different varieties of maize as a function of their genes and environmental conditions. They did this by considering the yields of 246 maize hybrid varieties sown over 25 sites in Europe and Chili. The model could make for a precious tool for when it comes to assessing the performance of each germplasm depending on where it is cultivated. “Our approach offers good prospects for breeding programmes aimed at the development of new hybrids adapted to the diversity of current and future climatic conditions,” say the researchers.

Read the research paper: Genomic prediction of maize yield across European environmental conditions, Emilie J. Millet et al., Nature Genetics 10.1038/s41588-019-0414-y

Source: INRA