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 ba rley chromosome 7 using 124 doubled haploid lines of the North America n Barley Genome Mapping Project (NABGMP) progeny ('Steptoe' x 'Morex') . These loci involve six genomic DNA restriction fragment length polym orphisms (RFLPs) and two cDNA-RFLPs including a puroindoline gene. The distribution of these markers on barley chromosome 7 was compared wit h that of homoeologous wheat counterparts, i.e. wheat group 5. One loc us on chromosome 7 was associated with a QTL for beta-glucanase activi ty measured in green and finished barley malt.