Tightening the phosphorus cycle for grain legumes

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Using unique core collections of chickpea, soybean and peanut with diverse genetic backgrounds, this project aims to unravel the mechanisms underlying high phosphorus-use efficiency (PUE) at morphological, physiological, biochemical and molecular levels in three major legume crops. Reduced levels of phosphorus and phytate in seeds will improve seed quality for humans and livestock and dramatically reduce phosphorus-fertiliser inputs. The identification of traits and genes associated with high PUE will allow transfer of key traits into commercial cultivars using molecular breeding approaches. Cultivars with improved PUE will enable reduced phosphate fertiliser input and loss of phosphate in runoff from agricultural systems.