Novel genes on chromosome 3A influencing breadmaking quality in wheat, including a new gene for loaf volume, Lvl 1

Abstract

It is proposed that a single gene, Lvl 1, can explain variation in Chorleywood Bread Process loaf volume, crumb colour and score in bread wheat ( Triticum aestivum L.). The gene is located on the long arm of chromosome 3A about 30–40 cM from the centromere. It is possible that the Lvl 1 gene also determines gel-protein weight, although this could be the effect of a closely associated gene. A quantitative trait locus, which is likely to be a single gene controlling Hagberg Falling Number, was also located close to the centromere. Finally, the location of a gene (or genes) affecting gel-protein G′ (elastic modulus) could not be established but it may be located distally on the long arm, but proximal to the marker Xgwm 480.