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Stacked mutations in wheat homologues of rice SEMI-DWARF1 confer a novel semi-dwarf phenotype.

BMC plant biology - 9 May 2024

Ndreca Barbora, Huttly Alison, Bibi Sajida, Bayon Carlos, Lund George, Ham Joshua, Alarcón-Reverte Rocío, Addy John, Tarkowská Danuše, Pearce Stephen, Hedden Peter, Thomas Stephen G, Phillips Andrew L

Abstract excerpt

BACKGROUND: Semi-dwarfing alleles are used widely in cereals to confer improved lodging resistance and assimilate partitioning. The most widely deployed semi-dwarfing alleles in rice and barley encode the gibberellin (GA)-biosynthetic enzyme GA 20-OXIDASE2 (GA20OX2). The hexaploid wheat genome carries three homoeologous copies of GA20OX2, and because of functional redundancy, loss-of-function alleles of a single...

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Alleles
Genes, Plant
Gibberellins
Mixed Function Oxygenases
Oryza

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PMID: 38724935
DOI: 10.1186/s12870-024-05098-1
PMCID: PMC11080193

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