GrainGenes Reference Report: TAG-99-561
Reference
TAG-99-561
Title
Quantitative trait loci associated with resistance to Fusarium head blight and kernel discoloration in barley.
Journal
Theoretical and Applied Genetics
Year
1999
Volume
99
Pages
561-569
Author
de la Pena RC
[ Show all 8 ]
Abstract
Summary: Resistance to Fusarium head blight (FHB), deoxynivalenol (DON) accumulation, and kernel discoloration (KD) in barley are difficult traits to introgress into elite varieties because current screening methods are laborious and disease levels are strongly influenced by environment. To improve breeding strategies directed toward enhancing these traits, we identified genomic regions containing quantitative trait loci (QTLs) associated with resistance to FHB, DON accumulation, and KD in a breeding population of F(4:7) lines using restriction fragment length polymorphic (RFLP) markers. We evaluated 101 F(4:7) lines, derived from a cross between the cultivar Chevron and an elite breeding line, M69, for each of the traits in three or four environments. We used 94 previously mapped RFLP markers to create a linkage map. Using composite interval mapping, we identified 10, 11, and 4 QTLs associated with resistance to FHB, DON accumulation, and KD, respectively. Markers flanking these QTLs should be useful for introgressing resistance to FHB, DON accumulation, and KD into elite barley cultivars
External Databases
http://link.springer.de/link/service/journals/00122/bibs/9099003/90990561.htm
QTL
Keyword
barley
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: TAG-99-561
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||