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GrainGenes Marker Report: HMW20/6+8-1B

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Locus	HMW20/6+8-1B
Type	Gene
Chromosome	1B
Chromosome Arm	1BL
Map	Tt-Oxd-QTL-1B 61.9
	[ Show Nearby Loci ]
Map Data	T. turgidum, Omrabi5 x dicoccoides, QTL
Associated Gene	Glu-B1 (Triticum)
Gene Class	Glutenins
Gene Associated with Locus	Glu-B1 (Triticum)
Synonym	Other name Glt-B1 Galili G and Feldman M (1983) Genetic control of endosperm proteins in wheat 2. Variation in high-molecular-weight glutenin and gliadin subunits of Triticum aestivum. Theoretical and Applied Genetics 66:77-86. Glt-B2 Galili G and Feldman M (1983) Genetic control of endosperm proteins in wheat 2. Variation in high-molecular-weight glutenin and gliadin subunits of Triticum aestivum. Theoretical and Applied Genetics 66:77-86. Glt-B3 Galili G and Feldman M (1983) Genetic control of endosperm proteins in wheat 2. Variation in high-molecular-weight glutenin and gliadin subunits of Triticum aestivum. Theoretical and Applied Genetics 66:77-86. Glu 1B Sozinov Aa (1984) Blocks of cereal storage proteins as genetic markers. Proceedings of the 2nd International Workshop on Gluten Proteins, Wageningen, The Netherlands 121-127.
Gene Class	Glutenins
Orthologous Gene Set	Glu-1
Allele	Glu-B1-1d (Triticum) [ Show all 48 ]
Locus	Glu-1 [ Show all 6 ]
Candidate Locus	Xpsr12(Glu-1)-1B
Reference	Lukow OM et al. (1989) The HMW glutenin subunit composition of Canadian wheat cultivars and their association with bread-making quality. Journal of Science Food and Agriculture 46:451-460. [ Show all 17 ]
URL	Molecular markers for glutenins at MASWheat Gene record in the Catalog of Gene Symbols for Wheat at Komugi
Chromosome	1B Bietz JA et al. (1975) Cereal single-kernel analysis of glutenin: Use in wheat genetics and breeding. Cereal Chemistry 52:513-532. Lawrence GJ and Shepherd KW (1980) Variation in glutenin protein subunits in wheat. Australian Journal of Biological Sciences 33:221-233. Payne PI et al. (1982) Structural and genetical studies on the high-molecular-weight subunits of wheat glutenin III. Telocentric mapping of the subunit genes on the long arms of the homoeologous group 1 chromosomes. Theoretical and Applied Genetics 63:129-138.
Chromosome Arm	1BL Bietz JA et al. (1975) Cereal single-kernel analysis of glutenin: Use in wheat genetics and breeding. Cereal Chemistry 52:513-532. Lawrence GJ and Shepherd KW (1980) Variation in glutenin protein subunits in wheat. Australian Journal of Biological Sciences 33:221-233. Payne PI et al. (1982) Structural and genetical studies on the high-molecular-weight subunits of wheat glutenin III. Telocentric mapping of the subunit genes on the long arms of the homoeologous group 1 chromosomes. Theoretical and Applied Genetics 63:129-138.
Germplasm	Hexaploid stock Chinese Spring
Comment	Alleles formerly designated t to x in 939 have been renamed x to ab because allele t in 617 and alleles u, v and w in 754 have precedence. Subunit 8 of Glu-B1b (7+8) is more acidic in isoelectric focusing than subunit 8 of Glu-B1d (6+8) (394). Variation in the mobility of subunits designated 7 has been observed (790), which accords with more recent observations (516, 754). The subunit encoded by Glu-B1v (754) has the same mobility as subunit 7 of Glu-B1c (7+9); it could be the same subunit as 7' encoded by Glu-B1ai (516). Variation in the staining intensity of subunit 7 in different varieties has also been observed (754); possible low gene expression at Glu-B1 has been noted for Glu-B1w, where subunits 6*+8* stain very faintly (814). One of the Glu-B1af subunits has been numbered 26 in 814; 26 was previously used to number the subunit encoded by Glu-A1k (327). Subunit 28 of Glu-B1ag (28+29) (814) is referred to as subunit 19* in 753. Subunit 23 of Glu-B1p (23+18) and Glu-B1ad (23+22) (95) may not be the same subunit as that numbered 23 of Glu-B1l (23+24) (561). Glu-B1z carried by Roccia was numbered 7+15 and named Glu-B1-XII in 95; however, the earlier name, Glu-B1-IX (1117), has precedence. Also, 1117 states that the Glu-B1-IX subunit of faster mobility is slightly slower than subunit 15. Subunit 11 of Glu-B1s (7+11) was so numbered in 327 because its mobility is the same as one of the subunits encoded by a Glu-D1 allele (2+11) described in 545. Fifteen combinations involving 12 HMW subunits [1B (a-o)] are listed in 290. Eight alleles at Glu-B1-1 and 10 alleles at Glu-B1-2 were described in T. turgidum var. dicoccoides populations (579). See the Catalogue of Gene Symbols for Wheat for a full description of alleles
Clone	GLU Bx
Wheat Gene Catalog Reference	617 Lukow OM et al. (1989) The HMW glutenin subunit composition of Canadian wheat cultivars and their association with bread-making quality. Journal of Science Food and Agriculture 46:451-460. [ Show all 14 ]
Info Source	McIntosh RA et al. (1995) Catalogue of gene symbols for wheat. Proceedings of the 8th International Wheat Genetics Symposium 1333-1500.
Data Curator	Hart, Gary E. 95.08.24

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