Molecular marker-assisted selection for enhanced yield in malting barley

Molecular marker-assisted selection for enhanced yield in malting barley

Brewers are reluctant to change malting barley (Hordeum vulgare ssp. vulgare L.) cultivars due to concerns of altered flavor and brewing procedures. The U.S. Pacific Northwest is capable of producing high yielding, high quality malting barley but lacks adapted cultivars with desirable malting charac...

Full description

Saved in:
Bibliographic Details
Published in:Molecular breeding Vol. 14; no. 4; pp. 463 - 473
Main Authors: Schmierer, D.A, Kandemir, N, Kudrna, D.A, Jones, B.L, Ullrich, S.E, Kleinhofs, A
Format: Journal Article
Language:English
Published: Dordrecht Springer Nature B.V 2004
Subjects:
Barley
Brewing
Chromosomes
Cultivars
Flavor
Gene mapping
genetic markers
Genomes
Genotypes
grain yield
Hordeum vulgare subsp. vulgare
Industry standards
malting barley
malting quality
Marker-assisted selection
Molecular biology
Nurseries
Plant biology
plant breeding
Quantitative trait loci
restriction fragment length polymorphism
variety trials
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Brewers are reluctant to change malting barley (Hordeum vulgare ssp. vulgare L.) cultivars due to concerns of altered flavor and brewing procedures. The U.S. Pacific Northwest is capable of producing high yielding, high quality malting barley but lacks adapted cultivars with desirable malting characteristics. Our goal was to develop high yielding near isogenic lines that maintain traditional malting quality characteristics by transferring quantitative trait loci (QTL) associated with yield, via molecular marker-assisted backcrossing, from the high yielding cv. Baronesse to the North American two-row malting barley industry standard cv. Harrington. For transfer, we targeted Baronesse chromosome 2HL and 3HL fragments presumed to contain QTL that affect yield. Analysis of genotype and yield data suggests that QTL reside at two regions, one on 2HL (ABG461C-MWG699) and one on 3HL (MWG571A-MWG961). Genotype and yield data indicate that additional Baronesse genome regions are probably involved, but need to be more precisely defined. Based on yield trials conducted over 22 environments and malting analyses from 6 environments, we selected one isogenic line (00-170) that has consistently produced yields equal to Baronesse while maintaining a Harrington-like malting quality profile. We conclude there is sufficient data to warrant experiments testing whether the 2HL and 3HL Baronesse QTL would be effective in increasing the yield of other low yielding barley cultivars.
Bibliography:http://hdl.handle.net/10113/39604
http://dx.doi.org/10.1007/s11032-005-0903-9
ISSN:1380-3743
1572-9788
DOI:10.1007/s11032-004-0903-1