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GrainGenes Reference Report: EUP-114-47

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Reference	EUP-114-47
Title	Genetic control of aluminum tolerance in mutant lines of the wheat cultivar Anahuac.
Journal	Euphytica
Year	2000
Volume	114
Pages	47-53
Author	Camargo CED Neto AT Ferreira AWP Felicio JC
Abstract	The behavior of 17 gamma irradiation mutant lines derived from the aluminum sensitive wheat cultivar 'Anahuac' was compared with two sensitive and three tolerant cultivars in nutritent solutions containing seven Al3+ concentrations (0; 0.5; 1; 2; 4; 6 and10 mg/liter), at a temperature of 25 deg. C and 4.0 pH. Tolerance was measured by the continued growth of the primary roots in a solution without aluminum after 48 hours in a solution containing a known concentration of aluminum. 14 mutant lines were as tolerant to the presence of 10 mg/liter of Al3+ in the treatment solutions as were the tolerant 'BH-1146', 'IAC-60' and 'IAC-24' cultivars. Two mutant lines were tolerant and one was sensitive to the presence of 1 mg/liter of Al3+, while the cultivars 'Siete Cerros' and 'Anahuac' were sensitive to 1 and 0.5 mg/liter Al3+ in the solutions, respectively. F2 seedlings, obtained from cross among one sensitive and twelve tolerant mutant lines to the sensitive cultivars ('Siete Cerros' or 'Anahuac') and the tolerant cultivars ('BH-1146' or 'IAC-24') were assessed for tolerance to 2 mg/liter Al3+ in nutritient solutions. The twelve tolerant mutant lines and the tolerant 'IAC-60' and 'IAC-24' cultivars differed from the sensitive 'Siete Cerros' or 'Anahuac' cultivars by one pair of dominant alleles. The results indicated that tolerance in the induced mutants was due to a single pair of dominant alleles and that these alleles expressed the same tolerance as 'BH-1146' and 'IAC-24' cultivars.
External Databases	https://doi.org/10.1023/A:1003993320432
Gene	Alt2 (Triticum)
Germplasm	Anahuac induced mutant BH1146
Keyword	[ Hide all but 1 of 23 ] alleles aluminum aluminum tolerance cross cultivar dominance gamma irradiation gamma radiation genetic control genetic resistance growth induced mutations metal tolerance mutant nutrient solutions roots seedlings sensitive cultivars temperature tolerance tolerant cultivars triticum aestivum wheat cultivar

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