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Quantitative trait loci for resistance to fusarium head blight and deoxynivalenol accumulation in Wangshuibai wheat under field conditions

Ma, H.X ; Zhang, K.M ; Gao, L ; Bai, G.H ; Chen, H.G ; Cai, Z.X ; Lu, W.Z

Plant pathology, 2006-12, Vol.55 (6), p.739-745 [Periódico revisado por pares]

Oxford, UK: Oxford, UK : Blackwell Publishing Ltd

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Título:
Quantitative trait loci for resistance to fusarium head blight and deoxynivalenol accumulation in Wangshuibai wheat under field conditions
Autor: Ma, H.X ; Zhang, K.M ; Gao, L ; Bai, G.H ; Chen, H.G ; Cai, Z.X ; Lu, W.Z
Assuntos: Agronomy. Soil science and plant productions ; amplified fragment length polymorphism ; Biological and medical sciences ; chromosome mapping ; deoxynivalenol ; disease resistance ; field experimentation ; food contamination ; Fundamental and applied biological sciences. Psychology ; Fungal plant pathogens ; Fusarium ; fusarium head blight ; genetic markers ; genetic resistance ; Genetics and breeding of economic plants ; Gibberella zeae ; inbred lines ; inflorescences ; landraces ; marker-assisted selection ; microsatellite repeats ; molecular markers ; molecular sequence data ; Pathology, epidemiology, host-fungus relationships. Damages, economic importance ; Pest resistance ; Phytopathology. Animal pests. Plant and forest protection ; plant genetic resources ; Plant pathogens ; QTLs ; quantitative trait loci ; scab diseases ; Triticum aestivum ; Varietal selection. Specialized plant breeding, plant breeding aims ; wheat
É parte de: Plant pathology, 2006-12, Vol.55 (6), p.739-745
Notas: http://dx.doi.org/10.1111/j.1365-3059.2006.01447.x
http://hdl.handle.net/10113/35540
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
Descrição: Wangshuibai is a Chinese landrace wheat with a high level of resistance to fusarium head blight (FHB) and deoxynivalenol (DON) accumulation. Using an F7 population of recombinant inbred lines (RILs) derived from the cross between Wangshuibai and Annong 8455 for molecular mapping of quantitative trait loci (QTL) for FHB resistance, the proportion of scabbed spikelets (PSS) and DON content were assessed under field conditions. Composite interval mapping revealed that two and three QTL were significantly associated with low PSS and low DON content, respectively, over 2 years. QTL on chromosomes 3B and 2A explained 17 and 11·5%, respectively, of the phenotypic variance for low PSS, whereas QTL on chromosomes 5A, 2A and 3B explained 12·4, 8·5 and 6·2%, respectively, of the phenotypic variance for low DON content. The 3B QTL appeared to be associated mainly with low PSS, and the 5A QTL primarily with low DON content in Wangshuibai. The 2A QTL had minor effects on both low PSS and DON content. Microsatellite and AFLP markers linked to these QTL should be useful for marker-assisted selection of QTL for low PSS and low DNA content from Wangshuibai.
Editor: Oxford, UK: Oxford, UK : Blackwell Publishing Ltd
Idioma: Inglês

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Quantitative trait loci for resistance to fusarium head blight and deoxynivalenol accumulation in Wangshuibai wheat under field conditions

Ma, H.X ; Zhang, K.M ; Gao, L ; Bai, G.H ; Chen, H.G ; Cai, Z.X ; Lu, W.Z

Oxford, UK: Oxford, UK : Blackwell Publishing Ltd

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