Barley Yellow Mosaic Virus (BaYMV) Marker
This molecular marker has proven utility in breeding lines and is currently being used by more than 10 breeding programmes throughout Europe. The genetic distance (marker to locus) is approximately 1cM. Products appear to discriminate resistance from susceptible, and can also distinguish rym5 from rym 4 resistance genes, a key point for selection of BaYMV-2 resistance.
This molecular marker is already being used by a major barley breeder and is now available to all the industry. The genetic distance (marker to locus) is 3cM and the marker can identify the resistant allele present in varieties such as Pewter, Livet and Digger.
Mlo Mildew Resistance Marker
The mlo resistance gene has proven durable resistance to powdery mildew in barley for over 20 years. There are several different sources of the gene and we have a molecular marker that will not only identify resistance but also distinguish between the two main sources of the gene in commercial varieties.
We have identified the causal polymorphism leading to non-production of epiheterodendrin, the compound associated with glycosidic nitrile production in barley. We have developed a three primer assay that will detect this polymorphism as a single banded product compared to a double banded product for producers. This assay has proved 100% accurate over a large number of tests.