Artículo

Fusari, C.M.; Di Rienzo, J.A.; Troglia, C.; Nishinakamasu, V.; Moreno, M.V.; Maringolo, C.; Quiroz, F.; Álvarez, D.; Escande, A.; Hopp, E.; Heinz, R.; Lia, V.V.; Paniego, N.B. "Association mapping in sunflower for sclerotinia head rot resistance" (2012) BMC Plant Biology. 12
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Abstract:

Background: Sclerotinia Head Rot (SHR) is one of the most damaging diseases of sunflower in Europe, Argentina, and USA, causing average yield reductions of 10 to 20 %, but leading to total production loss under favorable environmental conditions for the pathogen. Association Mapping (AM) is a promising choice for Quantitative Trait Locus (QTL) mapping, as it detects relationships between phenotypic variation and gene polymorphisms in existing germplasm without development of mapping populations. This article reports the identification of QTL for resistance to SHR based on candidate gene AM.Results: A collection of 94 sunflower inbred lines were tested for SHR under field conditions using assisted inoculation with the fungal pathogen Sclerotinia sclerotiorum. Given that no biological mechanisms or biochemical pathways have been clearly identified for SHR, 43 candidate genes were selected based on previous transcript profiling studies in sunflower and Brassica napus infected with S. sclerotiorum. Associations among SHR incidence and haplotype polymorphisms in 16 candidate genes were tested using Mixed Linear Models (MLM) that account for population structure and kinship relationships. This approach allowed detection of a significant association between the candidate gene HaRIC_B and SHR incidence (P < 0.01), accounting for a SHR incidence reduction of about 20 %.Conclusions: These results suggest that AM will be useful in dissecting other complex traits in sunflower, thus providing a valuable tool to assist in crop breeding. © 2012 Fusari et al.; licensee Biomed Central Ltd.

Registro:

Documento: Artículo
Título:Association mapping in sunflower for sclerotinia head rot resistance
Autor:Fusari, C.M.; Di Rienzo, J.A.; Troglia, C.; Nishinakamasu, V.; Moreno, M.V.; Maringolo, C.; Quiroz, F.; Álvarez, D.; Escande, A.; Hopp, E.; Heinz, R.; Lia, V.V.; Paniego, N.B.
Filiación:Instituto de Biotecnología, Centro Investigación en Ciencias Veterinarias y Agronómicas (CICVyA), Instituto Nacional de Tecnología Agropecuaria (INTA), 1686, Hurlingham, Buenos Aires, Argentina
Cátedra de Estadística y Biometría, Facultad de Ciencias Agropecuarias, Universidad Nacional de Córdoba, 5000, Córdoba, Argentina
Estación Experimental Agropecuaria Balcarce, INTA, 7620, Balcarce, Buenos Aires, Argentina
Estación Experimental Agropecuaria Manfredi, INTA, 5988, Manfredi, Córdoba, Argentina
Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Buenos Aires, Argentina
Palabras clave:Brassica napus; Helianthus; Sclerotinia; Sclerotinia sclerotiorum; plant DNA; article; Ascomycetes; chromosome map; crop; disease resistance; DNA sequence; genetics; genotype; immunology; inbreeding; methodology; microbiology; molecular genetics; nucleotide sequence; pathogenicity; phenotype; plant disease; plant gene; quantitative trait locus; rapeseed; sunflower; Ascomycota; Base Sequence; Brassica napus; Chromosome Mapping; Crops, Agricultural; Disease Resistance; DNA, Plant; Genes, Plant; Genotype; Helianthus; Inbreeding; Molecular Sequence Data; Phenotype; Plant Diseases; Quantitative Trait Loci; Sequence Analysis, DNA
Año:2012
Volumen:12
DOI: http://dx.doi.org/10.1186/1471-2229-12-93
Título revista:BMC Plant Biology
Título revista abreviado:BMC Plant Biol.
ISSN:14712229
CAS:DNA, Plant
Registro:https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_14712229_v12_n_p_Fusari

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Citas:

---------- APA ----------
Fusari, C.M., Di Rienzo, J.A., Troglia, C., Nishinakamasu, V., Moreno, M.V., Maringolo, C., Quiroz, F.,..., Paniego, N.B. (2012) . Association mapping in sunflower for sclerotinia head rot resistance. BMC Plant Biology, 12.
http://dx.doi.org/10.1186/1471-2229-12-93
---------- CHICAGO ----------
Fusari, C.M., Di Rienzo, J.A., Troglia, C., Nishinakamasu, V., Moreno, M.V., Maringolo, C., et al. "Association mapping in sunflower for sclerotinia head rot resistance" . BMC Plant Biology 12 (2012).
http://dx.doi.org/10.1186/1471-2229-12-93
---------- MLA ----------
Fusari, C.M., Di Rienzo, J.A., Troglia, C., Nishinakamasu, V., Moreno, M.V., Maringolo, C., et al. "Association mapping in sunflower for sclerotinia head rot resistance" . BMC Plant Biology, vol. 12, 2012.
http://dx.doi.org/10.1186/1471-2229-12-93
---------- VANCOUVER ----------
Fusari, C.M., Di Rienzo, J.A., Troglia, C., Nishinakamasu, V., Moreno, M.V., Maringolo, C., et al. Association mapping in sunflower for sclerotinia head rot resistance. BMC Plant Biol. 2012;12.
http://dx.doi.org/10.1186/1471-2229-12-93