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Genetic architecture is more complex for resistance to Septoria tritici blotch than to Fusarium head blight in Central European winter wheat
Autor: | Mirdita, V. |
Autor: | Guozheng Liu |
Autor: | Yusheng Zhao |
Autor: | Miedaner, T. |
Autor: | Longin, F.H. |
Autor: | Gowda, M. |
Autor: | Florian Mette, M. |
Autor: | Reif, J.C. |
Año: | 2015 |
URI: | http://hdl.handle.net/10883/4526 |
Resumen: | Fusarium head blight (FHB) and Septoria tritici blotch (STB) severely impair wheat production. With the aim to further elucidate the genetic architecture underlying FHB and STB resistance, we phenotyped 1604 European wheat hybrids and their 135 parental lines for FHB and STB disease severities and determined genotypes at 17,372 single-nucleotide polymorphic loci. Results: Cross-validated association mapping revealed the absence of large effect QTL for both traits. Genomic selection showed a three times higher prediction accuracy for FHB than STB disease severity for test sets largely unrelated to the training sets. Conclusions: Our findings suggest that the genetic architecture is less complex and, hence, can be more properly tackled to perform accurate prediction for FHB than STB disease severity. Consequently, FHB disease severity is an interesting model trait to fine-tune genomic selection models exploiting beyond relatedness also knowledge of the genetic architecture. |
Formato: | |
Lenguaje: | English |
Editor: | BioMed Central |
Copyright: | CIMMYT manages Intellectual Assets as International Public Goods. The user is free to download, print, store and share this work. In case you want to translate or create any other derivative work and share or distribute such translation/derivative work, please contact CIMMYT-Knowledge-Center@cgiar.org indicating the work you want to use and the kind of use you intend; CIMMYT will contact you with the suitable license for that purpose. |
Tipo: | Article |
Lugar de publicación: | London |
Volumen: | 16 |
DOI: | 10.1186/s12864-015-1628-8 |
Palabras Claves: | Association Mapping |
Palabras Claves: | Genomic Selection |
Palabras Claves: | Hybrid Wheat |
Palabras Claves: | Fusarium Head Blight |
Palabras Claves: | Septoria tritici Blotch |
País: | CENTRAL EUROPE |
Agrovoc: | CHROMOSOME MAPPING |
Agrovoc: | ARTIFICIAL SELECTION |
Agrovoc: | WHEAT |
Agrovoc: | HYBRIDS |
Agrovoc: | FUSARIUM |
Agrovoc: | BLIGHT |
Agrovoc: | MYCOSPHAERELLA GRAMINICOLA |
Agrovoc: | LEAF BLOTCH |
Datasets relacionados: | https://bmcgenomics.biomedcentral.com/articles/10.1186/s12864-015-1628-8#Sec21 |
Revista: | BMC Genomics |
Número de artículo: | 430 |
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Wheat
Wheat - breeding, phytopathology, physiology, quality, biotech