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GrainGenes Gene Report: Rg1 (Triticum)

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Gene	Rg1 (Triticum)  [ Marker Report ]
Synonym	Other name Rg Rg-B1 (Triticum) Khlestkina EK et al. (2006) Comparative mapping of genes for glume colouration and pubescence in hexaploid wheat (Triticum aestivum L.). Theoretical and Applied Genetics 113:801-807.
Gene Class	Red glumes
Locus	Rg1
Reference	Zeven AC (1983) The character brown ear of wheat: A review. Euphytica 32:299-310. Torrie JH (1936) Inheritance studies of several qualitative characters in spring wheat crosses between varieties relatively susceptible and resistant to drought. Canadian Journal of Research 14:368-385. PBA-8-195 Plant Breeding Abstracts 8:195. PBA-30-62 Plant Breeding Abstracts 30:62. PBA-9-43 Plant Breeding Abstracts 9:43.
Chromosome	1B Unrau J (1950) The use of monosomes and nullisomes in cytogenetic studies in common wheat. Journal of Agricultural Science 30:66-89.
Chromosome Arm	1BS Fletcher RJ and McIntosh RA (1971) WGS-95-1333-Ref#254.
Germplasm	Hexaploid stock FEDERATION 41 Unrau J (1950) The use of monosomes and nullisomes in cytogenetic studies in common wheat. Journal of Agricultural Science 30:66-89. Highbury Payne PI et al. (1986) Linkage mapping of four gene loci, Glu-B1, Gli-B1 Rg1 and Yr10 on chromosome 1B of bread wheat. Genetica Agraria 40:231-242. RED EGYPTIAN Sears ER WGS-95-1333-Ref#916. Homologous chromosome substitution line Chinese Spring*5/Red Egyptian 1B Sears ER WGS-95-1333-Ref#916. Tetraploid stock WARD Leisle D et al. (1985) Inheritance and linkage relationships of gliadin proteins and glume colour in durum wheat. Canadian Journal of Genetics and Cytology 27:716-721.
Comment	The majority of studies report that a single dominant gene determines red glume color. A few papers report two factors (Torrie, 1936; Vacenko, 1936; Miczynski, 1938). Red glume color in Swedish land cultivars is apparently associated with hairy glumes (Schmalz, 1958) suggesting, because Hg is located in chromosome 1A, that a red glume factor different from Rg1 is involved in the Swedish stocks. Nothing is known of the possible association of such a gene with Bg, another glume color gene on 1A. See (Zeven, 1983) for review.
Info Source	McIntosh RA et al. (2013) Catalogue of Gene Symbols for Wheat- 2013 Edition Catalogue of Gene Symbols for Wheat.
Data Curator	Cooper, Laurel July-2021 Hart, Gary E. 95.08.24

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