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Discovery of a bread wheat mutant with extra spikelets and a gain in grain yield

Grain yield in bread wheat (Triticum aestivum L.) is largely determined by spike architecture. Mutations in DUO-B1, encoding an AP2/ERF protein, result in a spike architecture with extra spikelets that increases both grain number per spike and yield under field conditions. Genetically modifying DUO-B1 has the potential to increase cereal production.

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Fig. 1: Mutations in DUO1 alter spike architecture in B. distachyon and in bread wheat.


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This is a summary of: Wang, Y. et al. Improving bread wheat yield through modulating an unselected AP2/ERF gene. Nat. Plants (2022).

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Discovery of a bread wheat mutant with extra spikelets and a gain in grain yield. Nat. Plants 8, 875–876 (2022).

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