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Detection of QTLs for Stagonospora glume blotch resistance in Swiss winter wheat.
Theor Appl Genet. 2003 Nov; 107(7):1226-34.TA

Abstract

Stagonospora nodorum is the causal agent of the Stagonospora glume blotch disease in hexaploid wheat. The Swiss winter bread wheat cv. 'Arina' has a highly effective, durable and quantitative glume blotch resistance. We studied 240 single seed descent (SSD)-derived lines of an 'Arina x Forno' F(5:7) population to identify and map quantitative trait loci (QTLs) for glume blotch resistance under natural infestation. Using composite interval mapping (CIM) and LOD>4.5, we detected two chromosomal regions on chromosome arms 3BS and 4BL which were specifically associated with glume blotch resistance. These identified QTLs were designated QSng.sfr-3BS and QSng.sfr-4BL, respectively. QSng.sfr-3BS peaked at the locus Xgwm389 in the telomeric region of the short arm of chromosome 3B and explained 31.2% of the observed phenotypic variance for the resistance within the population. The responsible QSng.sfr-3BS allele originated from the resistant parent 'Arina'. The QTL QSng.sfr-4BL (19.1%) mapped to chromosome arm 4BL ('Forno' allele) very close to two known genes, TaMlo and a catalase (Cat). Both QTL alleles combined could enhance the resistance level by about 50%. Additionally, they showed significant epistatic effects (4.4%). We found PCR-based microsatellite markers closely linked to QSng.sfr-3BS (gwm389) and QSng.sfr-4BL (gwm251) which make marker-assisted selection (MAS) for Stagonospora glume blotch resistance feasible. We also found one resistance QTL, QSng.sfr-5BL, on the long arm of chromosome 5B which overlapped with QTLs for plant height as well as heading time.

Authors+Show Affiliations

Schnurbusch T
Institute of Plant Biology, University of Zürich, Switzerland.
Paillard S
No affiliation info available
Fossati D
No affiliation info available
Messmer M
No affiliation info available
Schachermayr G
No affiliation info available
Winzeler M
No affiliation info available
Keller B
No affiliation info available

MeSH

AllelesCatalaseChromosome MappingChromosomes, PlantFungiGenes, PlantImmunity, InnateMicrosatellite RepeatsPhenotypePlant DiseasesQuantitative Trait LociTriticum

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

12928778

Citation

Schnurbusch, T, et al. "Detection of QTLs for Stagonospora Glume Blotch Resistance in Swiss Winter Wheat." TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, vol. 107, no. 7, 2003, pp. 1226-34.
Schnurbusch T, Paillard S, Fossati D, et al. Detection of QTLs for Stagonospora glume blotch resistance in Swiss winter wheat. Theor Appl Genet. 2003;107(7):1226-34.
Schnurbusch, T., Paillard, S., Fossati, D., Messmer, M., Schachermayr, G., Winzeler, M., & Keller, B. (2003). Detection of QTLs for Stagonospora glume blotch resistance in Swiss winter wheat. TAG. Theoretical and Applied Genetics. Theoretische Und Angewandte Genetik, 107(7), 1226-34.
Schnurbusch T, et al. Detection of QTLs for Stagonospora Glume Blotch Resistance in Swiss Winter Wheat. Theor Appl Genet. 2003;107(7):1226-34. PubMed PMID: 12928778.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Detection of QTLs for Stagonospora glume blotch resistance in Swiss winter wheat. AU - Schnurbusch,T, AU - Paillard,S, AU - Fossati,D, AU - Messmer,M, AU - Schachermayr,G, AU - Winzeler,M, AU - Keller,B, Y1 - 2003/08/19/ PY - 2003/03/03/received PY - 2003/06/11/accepted PY - 2003/8/21/pubmed PY - 2004/2/18/medline PY - 2003/8/21/entrez SP - 1226 EP - 34 JF - TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik JO - Theor Appl Genet VL - 107 IS - 7 N2 - Stagonospora nodorum is the causal agent of the Stagonospora glume blotch disease in hexaploid wheat. The Swiss winter bread wheat cv. 'Arina' has a highly effective, durable and quantitative glume blotch resistance. We studied 240 single seed descent (SSD)-derived lines of an 'Arina x Forno' F(5:7) population to identify and map quantitative trait loci (QTLs) for glume blotch resistance under natural infestation. Using composite interval mapping (CIM) and LOD>4.5, we detected two chromosomal regions on chromosome arms 3BS and 4BL which were specifically associated with glume blotch resistance. These identified QTLs were designated QSng.sfr-3BS and QSng.sfr-4BL, respectively. QSng.sfr-3BS peaked at the locus Xgwm389 in the telomeric region of the short arm of chromosome 3B and explained 31.2% of the observed phenotypic variance for the resistance within the population. The responsible QSng.sfr-3BS allele originated from the resistant parent 'Arina'. The QTL QSng.sfr-4BL (19.1%) mapped to chromosome arm 4BL ('Forno' allele) very close to two known genes, TaMlo and a catalase (Cat). Both QTL alleles combined could enhance the resistance level by about 50%. Additionally, they showed significant epistatic effects (4.4%). We found PCR-based microsatellite markers closely linked to QSng.sfr-3BS (gwm389) and QSng.sfr-4BL (gwm251) which make marker-assisted selection (MAS) for Stagonospora glume blotch resistance feasible. We also found one resistance QTL, QSng.sfr-5BL, on the long arm of chromosome 5B which overlapped with QTLs for plant height as well as heading time. SN - 0040-5752 UR - https://www.unboundmedicine.com/medline/citation/12928778/Detection_of_QTLs_for_Stagonospora_glume_blotch_resistance_in_Swiss_winter_wheat_ DB - PRIME DP - Unbound Medicine ER -