Functional analysis of DUO1 (IMAGE) Chinese Academy of Sciences Headquarters Caption A-B: Brachypodium distachyon wild type (A) with four spikelets on the main spike; mutant (B) with eight spikelets. C-G show the role of this gene in wheat. C: wheat variety Fielder spike type. D: duo1 mutant spike type. E: wheat variety Fielder bearing one spikelet per rachis node. F: mutant bearing three spikelets per rachis node. G: Anatomy of the spike of F. H-I: Comparison of the number of grains in the main spike between wild type Fielder and muant, and the number of grains in the mutant spike is significantly higher. Credit IGDB Usage Restrictions News organizations may use or redistribute this image, with proper attribution, as part of news coverage of this paper only. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.