GrainGenes Gene Class Report: Gibberellic acid insensitivity
Gene Class
Gibberellic acid insensitivity
Reference
Gale MD and Law CN (1976) The identification and exploitation of Norin 10 semi-dwarfing genes. Annual Report, Plant Breeding Institute Cambridge 21-35.
[ Show all 9 ]
LINK
Gibberellic Acid Insensitivity gene class at Komugi: Catalogue of Gene Symbols for Wheat
Abbreviation
Gai
See Also
Reduced height
Character affected
Gibberellic acid response
Gene
Gai1 (Triticum) Gai2 (Triticum) Gai3 (Triticum) gai (Hordeum)
Locus
Gai1 Gai2 Gai3 Gai
Comment
Two studies involving crosses between 'Tom Thumb' derivatives and tall parents suggested that gibberellic acid insensitivity and reduced height were controlled by one gene, i.e., Gai3 (Fick and Qualset, 1975; Gale et al., 1975). In a third study involving a 'Tom Thumb' derivative, recombinants were isolated, indicating separate but linked genes, i.e., Gai3 and Rht-B1c (Hu, 1974; Hu and Konzak, 1974). Further evidence was obtained for linkage between genes for gibberellic acid insensitivity and 'Norin 10' genes for reduced height in hexaploid (Hu et al., 1972) and durum (Konzak et al., 1973) wheats. Hu & Konzak (1974) reported 27% recombination between Gai1 and Rht-B1b and 10% recombination between Gai2 and Rht-D1b in hexaploid wheats involving 'Norin 10' and 'Suwon 92' derivatives. In durum derived from crosses involving 'Norin 10', 15% recombination was obtained between one of the genes for reduced height and gibberellic acid insensitivity (Sadam, 1974; 1975). Gale & Law (1976) considered Gai1 and Rht-B1b, Gai2 and Rht-D1b, Gai3/ and Rht-B1c to be pleiotropic genes.
Data Curator
Cooper, Laurel Mar-2021
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Gene Class Report: Gibberellic acid insensitivity
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||