GrainGenes Reference Report: PBR-119-15
Reference
PBR-119-15
Title
Chromosomal location of Fusarium head blight resistance genes and analysis of the relationship between resistance to head blight and brown foot rot
Journal
Plant Breeding
Year
2000
Volume
119
Pages
15-20
Author
Mentewab A Rezanoor HN Gosman N Worland AJ Nicholson P
Abstract
Summary: In order to identify chromosomes involved in resistance to Fusarium head blight, a set of 21 substitution lines of Triticum macha (resistant) chromosomes into 'Hobbit' 'sib' (susceptible) were evaluated in trials over 2 years. For the first year's trial, all plants were inoculated on the same day with a conidial suspension of F. culmorum. For the second trial, individual plants were inoculated precisely at mid anthesis of each plant over a period of 2 weeks. The disease level was assessed by visual scoring, relative ear weight and F. culmorum-specific quantitative polymerase chain reaction. The results showed that T. macha chromosomes 1B, 4A and 7A conferred good overall resistance, suggesting that they carry important genes for resistance. In two additional trials, T. macha and 'Hobbit' 'sib' were evaluated for resistance to brown foot rot. The results showed that T. macha was more susceptible than 'Hobbit' 'sib', indicating that stem base disease response is not correlated with head blight resistance in these cultivars
GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture.
GrainGenes Reference Report: PBR-119-15
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GrainGenes is a product of the Agricultural Research Service of the US Department of Agriculture. | |||