Amy2Polymorphism as a Possible Marker of β-Glucanase Activity in Barley (Hordeum vulgareL.)

Autor: Zwickert-Menteur, S., Jestin, L., Branlard, G.
Zdroj: Journal of Cereal Science; July, 1996, Vol. 24 Issue: 1 p55-63, 9p
Abstrakt: The polymorphism of barleyalpha-amylases, as revealed by isoelectric-focusing (IEF), was studied in a population of 126 doubled-haploids from a cross between the cultivars Morex and Steptoe. In particular, the pattern was determined for an additional low pI alpha-amylase isozyme detected in cultivar Steptoe. No significant effect of this isozyme onalpha-amylase activity was observed, but a significant effect on β-glucanase activity was detected for two out of four trial locations. Quantitative Trait Loci (QTL) foralpha-amylase and β-glucanase activities were also investigated. The results suggest a potential location for the β-glucanase locusGlb2, on chromosome 1 close to theAmy2locus foralpha-amylase genes.
Databáze: Supplemental Index