Chromosomal location of aluminium tolerance genes in rye

Rye is known for its high tolerance of aluminium in the soils in comparison with wheat and other cereals. To localize the major gene/genes controlling aluminium tolerance on the rye chromosomes, four series of wheat-rye addition lines, two sets of triticale D(R) substitution lines and several wheat/rye translocation lines were tested in experiments on seedlings grown in nutrient solutions with various concentrations of aluminium. The results indicate that the major locus responsible for Al tolerance in rye is located on the short arm of chromosome 3R. The importance of these results for controlled introgressions into cereals is discussed.