np225(5)_1873.pdf 1.19 MB
Schnurbusch, Thorsten Leibniz Institute of Plant Genetics and Crop Plant Research / Faculty of Natural Sciences III, Institute of Agricultural and Nutritional Sciences, Martin Luther University Halle-Wittenberg
Enhancing the yield potential and stability of small-grain cereals, such as wheat (Triticum sp.), rice (Oryza sativa), and barley (Hordeum vulgare), is a priority for global food security. Over the last several decades, plant breeders have increased grain yield mainly by increasing the number of grains produced in each inflorescence. This trait is determined by the number of spikelets per spike and the number of fertile florets per spikelet. Recent genetic and genomic advances in cereal grass species have identified the molecular determinants of grain number and facilitated the exchange of information across genera. In this review, we focus on the genetic basis of inflorescence architecture in Triticeae crops, highlighting recent insights that have helped to improve grain yield by, for example, reducing the preprogrammed abortion of floral organs. The accumulating information on inflorescence development can be harnessed to enhance grain yield by comparative trait reconstruction and rational design to boost the yield potential of grain crops.
(C)2019 The Authors New Phytologist (C)2019 New Phytologist Trust This is an open access article under the terms of the Creative Commons Attribution License, which permits use,distribution and reproduction in any medium, provided the original work is properly cited.
Sakuma Shun, Schnurbusch Thorsten. Of floral fortune: tinkering with the grain yield potential of cereal crops. NEW PHYTOLOGIST. 2020. 225(5). 1873-1882. doi:10.1111/nph.16189
Faculty of Agriculture/Graduate School of Agriculture
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