Journal
SCIENCE
Volume 376, Issue 6589, Pages 180-+Publisher
AMER ASSOC ADVANCEMENT SCIENCE
DOI: 10.1126/science.abm0717
Keywords
-
Categories
Funding
- Agriculture and Food Research Initiative Competitive Grants from the USDA National Institute of Food and Agriculture (NIFA) [2017-67007-25939, 2017-67007-25932, 2022-68013-36439]
- Oklahoma Center for Advanced Science and Technology (OCAST) [AR17-020-03]
- Oklahoma Wheat Research Foundation
- Oklahoma Agricultural Experiment Station
- Dillon and Lois Hodges Professorship
- 111 Project
- Collaborative Innovation Center for Modern Crop Production (CIC-MCP)
- NIFA [914499, 2017-67007-25932] Funding Source: Federal RePORTER
Ask authors/readers for more resources
This study reports the influence of spike architecture on grain yield in wheat and successfully cloned the gene TaCOL-B5 that determines the number of spikelet nodes per spike in common wheat. The overexpression of TaCol-B5 increases the spikelet nodes, tillers, and spikes, thereby enhancing grain yield. The allelic variation in TaCOL-B5 affects protein phosphorylation by TaK4.
Spike architecture influences grain yield in wheat. We report the map-based cloning of a gene determining the number of spikelet nodes per spike in common wheat. The cloned gene is named TaCOL-B5 and encodes a CONSTANS-like protein that is orthologous to COL5 in plant species. Constitutive overexpression of the dominant TaCol-B5 allele but without the region encoding B-boxes in a common wheat cultivar increases the number of spikelet nodes per spike and produces more tillers and spikes, thereby enhancing grain yield in transgenic plants under field conditions. Allelic variation in TaCOL-B5 results in amino acid substitutions leading to differential protein phosphorylation by the protein kinase TaK4. The TaCol-B5 allele is present in emmer wheat but is rare in a global collection of modern wheat cultivars.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available