Mapping of β-glucan content and β-glucanase activity loci in barley grain and malt |
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| Authors: | F Han S E Ullrich S Chirat S Menteur L Jestin A Sarrafi P M Hayes B L Jones T K Blake D M Wesenberg A Kleinhofs A Kilian |
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| Institution: | (1) Department of Crop and Soil Sciences, Washington State University, 99164 Pullman, WA, USA;(2) Department of Biotechnology and Plant Breeding, INP-ENSAT, 31076 Toulouse, France;(3) Department of Plant Breeding, INRA, F. 63039 Clermont-Ferrand, France;(4) Department of Crop and Soil Science, Oregon State University, 97331 Corvallis, OR, USA;(5) USDA/ARS Cereal Crops Research Unit, 53705 Madison, WI, USA;(6) Department of Plant and Soil Sciences, Montana State University, 59717 Bozeman, MT, USA;(7) USDA/ARS, National Small Grains Germplasm Research Facility, 83210 Aberdeen, ID, USA |
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| Abstract: | Genetic study of  -glucan content and -glucanase activity has been facilitated by recent developments in quantitative trait loci (QTL) analysis. QTL for barley and malt -glucan content and for green and finished malt -glucanase activity were mapped using a 123-point molecular marker linkage map from the cross of Steptoe/Morex. Three QTL for barley -glucan, 6 QTL for malt -glucan, 3 QTL for -glucanase in green malt and 5 QTL for -glucanase in finished malt were detected by interval mapping procedures. The QTL with the largest effects on barley -glucan, malt glucan, green malt -glucanase and finished malt 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 glucan content, green and finished malt -glucanase activity, and other malting quality parameters. |
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| Keywords: | QTL mapping  -Glucan" target="_blank">gif" alt="beta" align="MIDDLE" BORDER="0">-Glucan -Glucanase Malt barley" target="_blank">gif" alt="beta" align="MIDDLE" BORDER="0">-Glucanase Malt barley Hordeum vulgare |
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