An international group of researchers has achieved a 95% success rate in reproducing a commercial hybrid rice variety as a clone through seeds. This breakthrough has the potential to reduce the cost of hybrid rice seeds, making high-yielding and disease-resistant rice strains accessible to farmers w
Nature CommunicationsCrops produced from first-generation hybrids often display improved performance compared to their parent strains, which is referred to as “hybrid vigor”. However, this improvement does not continue when the hybrids are bred for a second generation. As a result, farmers who wish to use high-performing hybrid plant varieties must purchase new seeds each season.
One solution to this would be to propagate hybrids as clones that would remain identical from generation to generation without further breeding. Many wild plants can produce seeds that are clones of themselves, a process called apomixis. Sundaresan, Khanday, and colleagues in France, Germany, and Ghana have now achieved a clonal efficiency of 95 percent, using a commercial hybrid rice strain, and shown that the process could be sustained for at least three generations.
France Dernières Nouvelles, France Actualités
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