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The tolerance of triticale ( x Triticosecale  Wittmack) cultivars to aluminum (Al) stress observed in acid soils is an important agronomic trait affecting seed yield. Traditionally, breeding of Al-tolerant cultivars was selection based; for example, using a physiological test. However, such selection methods are relatively slow and require numerous plants for phenotype evaluation. Alternatively, DNA-based molecular marker systems could be applied to identify markers useful for selection purposes. Among many marker platforms available, Diversity Arrays Technology (DArT) is one of the most promising. DArT markers preselected for conversion to specific PCR assays were chosen based on association mapping studies using diverse materials. Forty-nine DArT markers were selected and tested for redundancy based on their segregation patterns and sequences, and 40 were successfully converted into specific PCR assays. However, only 24 of these proved to be polymorphic. Where possible, the chromosomal locations of the converted markers were verified. The markers assigned to chromosome 7R that were the most highly correlated with Al-tolerant and non-tolerant plants were chosen for marker assisted selection using genetically diverse triticale materials.   Electronic supplementary material  The online version of this article (doi:10.1007/s11032-015-0400-8) contains supplementary material, which is available to authorized users.

Diversity Arrays Technology-based PCR markers for marker assisted selection of aluminum tolerance in triticale (x Triticosecale Wittmack)