Effect of 1BL/1RS Translocation on Aluminium Tolerance of Derived Lines from a Winter Wheat Cross


Institute for Introduction and Plant Genetic Resources, BG-4122 Sadovo, Bulgaria


BOYADJIEVA, D. B., S. D. STOYANOVA and Ch. Ch. PHYLIPOV, 2000. Effect of 1BL/1RS translocation on aluminium tolerance of derived lines from a winter wheat cross, Bulg. J. Agric. Sci., 6: 405-410

47 randomised Triticum aestivum lines F5 and F6 equilibrated both by 1B and by 1BL/1RS as well 4 intermediate (described as lacking some of 1BL/1RS gliadin components) are evaluated in two successive years: 1996/1997 and 1997/1998. The lines are derived by cross between a line D380R (homozygous for 1BL/1RS) and wheat cv.Tarasque (homozygous for 1B). The described germplasm has one and the same genetic origin which further is separated in two contrasting groups by presence/absence of 1BL/1RS translocaions using acid polyacrilamide gel electrophoresis. Aluminium tolerance is described both for 1BL/1RS translocated lines and for non-translocated as well for intermediate lines observed. The effect of aluminium is presented by root growth indexes at four Al-media (0 mM, 0.18 mM, 0.36 mM, 0.72 mM and 1.4 mM).
A positive relationship is established between 1BL/1RS translocations in F5 and F6 wheat lines and their tolerance to toxic Al. Variance analysis and T-test are carried out to determine the significance of observed differences.

Key words: wheat, 1BL/1RS translocation, aluminium tolerance, gliadin electrophoresis