Locating supplementary RFLP markers on barley chromosome 7 and synteny with homoeologous wheat group 5

In order to develop QTL applications, eight new loci were mapped on barley chromosome 7 using 124 doubled haploid lines of the North American Barley Genome Mapping Project (NABGMP) progeny ('Steptoe' x 'Morex'). These loci involve six genomic DNA restriction fragment length polymorphisms (RFLPs) and two cDNA-RFLPs including a puroindoline gene. The distribution of these markers on barley chromosome 7 was compared with that of homoeologous wheat counterparts, i.e. wheat group 5. One locus on chromosome 7 was associated with a QTL for β-glucanase activity measured in green and finished barley malt.