Mapping of beta-glucan content and beta-glucanase activity loci in barley grain and malt
1995
Han, F. | Ullrich, S.E. | Chirat, S. | Menteur, S. | Jestin, L. | Sarrafi, A. | Hayes, P.M. | Jones, B.L. | Blake, T.K. | Wesenberg, D.M. | Kleinhofs, A. | Kilian, A. (Washington State Univ., Pullman (USA). Dept. of Crop and Soil Sciences)
Genetic study of beta-glucan content and beta-glucanase activity has been facilitated by recent developments in quantitative trait loci (QTL) analysis. QTL for barley and malt beta-glucan content and for green and finished malt beta-glucanase activity were mapped using a 123-point molecular marker linkage map from the cross of Steptoe/Morex. Three QTL for barley beta-glucan, 6 QTL for malt beta-glucan, 3 QTL for beta-glucanase in green malt and 5 QTL for beta-glucanase in finished malt were detected by interval mapping procedures. The QTL with the largest effects on barley beta-glucan, malt beta-glucan, green malt beta-glucanase and finished malt beta-glucanase were identified on chromosomes 2, 1, 4 and 7, respectively. A genome map-based approach allows for dissection of relationships among barley and malt beta-glucan content, green and finished malt beta-glucanase activity, and other malting quality parameters.
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