Pedigree investigation using biochemical markers: the wheat cultivar Gabo

Abstract

Biochemical tests for characterizing genotype were used to investigate the pedigree of the important Australian wheat Gabo. Although its registered pedigreeis (Bobin Selection x Gaza) x Bobin Selection, there have been suggestions that the recurring parent is Gular, not Bobin. Phenol reactions (grain and glume) and electrophoresis/isoelectric focusing patterns (gliadins) were obtained for a number of different accessions of Gabo, Gaza, Bobin and Gular. Gabo and Gaza samples were uniform; Bobin and Gular samples were not. The characteristics of most Bobin and Gular samples were inconsistent with their being a parent of Gabo. The results indicated that a sample called 'Bobin Selection W39' was the parent used in the cross with Gaza to produce Gabo, and that this selection was probably not Bobin, but a sample of Gular similar to that accessioned as 634 at the Waite Agricultural Research Institute.