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GrainGenes Marker Report: Alt2 (Triticum)

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Gene	Alt2 (Triticum)
Synonym	Other name AltBH (Triticum)
Gene Class	Aluminium tolerance Aluminum tolerance
Locus	Alt2
Reference	Raman H et al. (2005) Molecular characterization and mapping of ALMT1, the aluminium-tolerance gene of bread wheat (Triticum aestivum L.). Genome 48:781-791. Delhaize E et al. (2004) Engineering high-level aluminum tolerance in barley with the ALMT1 gene Proceedings of the National Academy of Sciences, USA 101:15249-15254. Camargo CED et al. (2000) Genetic control of aluminum tolerance in mutant lines of the wheat cultivar Anahuac. Euphytica 114:47-53. Riede CR and Anderson JA (1996) Linkage of RFLP markers to an aluminum tolerance gene in wheat. Crop Science 36:905-909. Luo MC et al. (1996) Molecular mapping of an aluminum tolerance locus on chromosome 4D of Chinese Spring wheat Euphytica 91:31-35.
URL	Gene symbol detail in the 'Catalog of Gene Symbols for Wheat' at Komugi
Chromosome	4D Luo MC et al. (1996) Molecular mapping of an aluminum tolerance locus on chromosome 4D of Chinese Spring wheat Euphytica 91:31-35. Milla MAR and Gustafson JP (2001) Genetic and physical characterization of chromosome 4DL in wheat Genome 44:883-892. Riede CR and Anderson JA (1996) Linkage of RFLP markers to an aluminum tolerance gene in wheat. Crop Science 36:905-909.
Chromosome Arm	4DL Luo MC et al. (1996) Molecular mapping of an aluminum tolerance locus on chromosome 4D of Chinese Spring wheat Euphytica 91:31-35.
Germplasm	[ Hide all but 1 of 6 ] Alien chromosome substitution line Langdon 4D(4B) Luo MC et al. (1996) Molecular mapping of an aluminum tolerance locus on chromosome 4D of Chinese Spring wheat Euphytica 91:31-35. Hexaploid stock BH1146 Camargo CED et al. (2000) Genetic control of aluminum tolerance in mutant lines of the wheat cultivar Anahuac. Euphytica 114:47-53. BH1146 Riede CR and Anderson JA (1996) Linkage of RFLP markers to an aluminum tolerance gene in wheat. Crop Science 36:905-909. IAC-24 Camargo CED et al. (2000) Genetic control of aluminum tolerance in mutant lines of the wheat cultivar Anahuac. Euphytica 114:47-53. IAC-60 Camargo CED et al. (2000) Genetic control of aluminum tolerance in mutant lines of the wheat cultivar Anahuac. Euphytica 114:47-53. Induced mutant Anahuac induced mutant Camargo CED et al. (2000) Genetic control of aluminum tolerance in mutant lines of the wheat cultivar Anahuac. Euphytica 114:47-53.
Comment	Malate transporter Almt-D1 gene (GenBank AB081803) is completely linked to aluminium tolerance in chromosome arm 4DL between SSR markers Xwmc48b and Xwmc331 in a similar region to Alt2 (Raman et al., 2005). Almt1 transgenic expression in barley conferred and Al-activated efflux of malate with properties similar to those of Al-tolerant wheat (Delhaize et al., 2004). Alt2 was mapped to a 4 cM interval flanked by Xpsr914-4D and Xpsr1051-4D (Luo and Dvorak, 1996) Alt2 is on a consensus 4B-4D map of T. aestivum; Alt2 - 1.1 cM - Xbcd1230-4D (Riede and Anderson, 1996) Alt2 cosegregated with Xbcd1230-4D and fell within the interval Xgdm125-4D - 4.8 cM - Alt2 -1.1 cM - Xpsr914-4D (Rodriguez Milla and Gustafson, 2001)
Locus Associated with Gene	Alt2
Type	Trait
Chromosome	4D
Chromosome Arm	4DL
Map	Wheat-Composite2004-4D 60
	[ Show Nearby Loci ]
Species	Triticum aestivum
Probe	WMC331
Associated Gene	Alt2 (Triticum)
Gene Class	Aluminium tolerance Aluminum tolerance
Reference	Raman H et al. (2005) Molecular characterization and mapping of ALMT1, the aluminium-tolerance gene of bread wheat (Triticum aestivum L.). Genome 48:781-791.
Remark	Trait marker Xwmc48b, Xwmc331 Nearby marker on Composite map: Xwmc331 Position on Composite map estimated by GrainGenes.

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