Isolate and organ-specific QTLs for ascochyta blight resistance in faba bean (Vicia faba L.)

Publication Overview
TitleIsolate and organ-specific QTLs for ascochyta blight resistance in faba bean (Vicia faba L.)
AuthorsAvila C, Satovic Z, Sillero J, Rubiales D, Moreno M, Torres A
TypeJournal Article
Journal NameTheoretical and applied genetics
Volume108
Issue6
Year2004
Page(s)1071-1078
CitationAvila C, Satovic Z, Sillero J, Rubiales D, Moreno M, Torres A. Isolate and organ-specific QTLs for ascochyta blight resistance in faba bean (Vicia faba L.). Theoretical and applied genetics. 2004; 108(6):1071-1078.

Abstract

The main objective of the present study was to locate the genomic regions responsible for ascochyta blight resistance in faba bean. Six QTLs were identified with the help of a linkage map constructed from a F2 population from the cross between the inbred lines 29H (resistant) and VF136 (susceptible). Two pathogenically distinct Ascochyta isolates were used to study the genetic control against them and disease evaluations were performed separately on leaves and stems to investigate whether different genetic systems control resistance in each plant organ, as previously suggested. The six QTLs detected were named Af3 to Af8. Af3 and Af4 were effective against both Ascochyta isolates, Af5 was only effective against isolate CO99-01 while Af6, Af7 and Af8 were only effective against isolate LO98-01. Af3, Af4, Af5 and Af7 were revealed in both leaves and stems. By contrast, Af6 was only effective in leaves and Af8 only in stems. The validity and application of these results in a MAS program is discussed.
Features
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Pages

Projects
This publication contains information about 1 projects:
Project NameDescription
Faba-Ascochyta_Resistance-Avila-2004
Featuremaps
This publication contains information about 1 maps:
Map Name
faba-29HxVf136-F2:3
Properties
Additional details for this publication include:
Property NameValue
Publication TypeJournal Article
Publication Date2004
Published Location|||
Language Abbreng
KeywordsVicia faba, faba beans, quantitative trait loci, disease resistance, genetic resistance, Ascochyta fabae, plant pathogenic fungi, blight, fungal diseases of plants, leaves, stems, chromosome mapping, microsatellite repeats, isozymes, random amplified polymorphic DNA technique, genetic markers
Cross References
This publication is also available in the following databases:
DatabaseAccession
AGL: USDA National Agricultural LibraryAGL:3626433