Fecha/hora: 10/06/2024 18:53:53

Biblioteca(s): | INIA Treinta y Tres.
Tipo de la producción científica: | Artículos en Revistas Indexadas Internacionales
Circulación/Nivel: | -- - --
Fecha corriente: | 18/12/2017
Fecha de la última actualización: | 04/11/2021
Autoria: | ROSAS, J.E.; MARTÍNEZ, S.; BLANCO, P.H.; PÉREZ DE VIDA, F.; BONNECARRERE, V.; MOSQUERA, G.; CRUZ, M.; GARAYCOCHEA, S.; MONTEVERDE, E.; GERMAN, S.; MCCOUCH, S.; JANNINK, J.; GUTIÉRREZ, L.
Afiliación: | JUAN EDUARDO ROSAS CAISSIOLS, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay. Dep. of Statistics, College of Agriculture, Univ. de la República.; SEBASTIÁN MARTÍNEZ KOPP, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; PEDRO HORACIO BLANCO BARRAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; FERNANDO BLAS PEREZ DE VIDA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; GLORIA MOSQUERA, Rice and Beans Project, CIAT, Cali, Colombia.; MARIBEL CRUZ, Latin American Rice Fund. Cali, Colombia; SILVIA RAQUEL GARAYCOCHEA SOLSONA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ELIANA MONTEVERDE, Dep. of Plant Breeding and Genetics, Cornell Univ., Ithaca, NY, USA.; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SUSAN MCCOUCH, Dep. of Plant Breeding and Genetics, Cornell Univ., Ithaca, NY, USA.; JEAN-LUC JANNINK; LUCÍA GUTIÉRREZ, Dep. of Agronomy, Univ. of Wisconsin-Madison. Dep. of Statistics, College of Agriculture, Univ. de la República.
Título: | Resistance to multiple temperate and tropical stem and sheath diseases of rice.
Año de publicación: | 2018
Fuente/Imprenta: | The Plant Genome, 2018, v. 11, no. 1. art. 170029. OPEN ACCESS. Doi:  https://doi.org/10.3835/plantgenome2017.03.0029
Páginas: | p. 1-13.
DOI: | 10.3835/plantgenome2017.03.0029
Idioma: | Inglés
Notas: | History paper: Received 29 Mar. 2017, Accepted 19 Sep. 2017. Publihed online December 14, 2017.

Contenido:

ABSTRACT:
Stem rot and aggregated sheath spot are the two major stem and sheath diseases affecting rice (Oryza sativa L.) in temperate areas. A third fungal disease, sheath blight, is a major disease in tropical areas. Resistance to these diseases is a key objective in rice breeding programs but phenotyping is challenged by the confounding effects of phenological and morphological traits such as flowering time (FT) and plant height (PH). This study sought to identify quantitative trait loci (QTL) for resistance to these three diseases after removing the confounding effects of FT and PH. Two populations of advanced breeding germplasm, one with 316 tropical japonica and the other with 325 indica genotypes, were evaluated in field and greenhouse trials for resistance to the diseases. Phenotypic means for field and greenhouse disease resistance, adjusted by FT and PH, were analyzed for associations with 29,000 single nucleotide polymorphisms (SNPs) in tropical japonica and 50,000 SNPs in indica. A total of 29 QTL were found for resistance that were not associated with FT or PH. Multilocus models with selected resistance-associated SNPs were fitted for each disease to estimate their effects on the other diseases. A QTL on chromosome 9 accounted for more than 15% of the phenotypic variance for the three diseases. When resistance-associated SNPs at this locus from both the tropical japonica and indica populations were incorporated into the model, resistance was improved for all three diseases with little impact on FT and PH.

Palabras-Clave: | DISEASE RESISTANCE; ENFERMEDADES DE LA VAINA.
Thesagro: | ARROZ; ENFERMEDADES DE LAS PLANTAS; RESISTENCIA A LA ENFERMEDAD.
Categoría del tema: | H20 Enfermedades de las plantas
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/8156/1/Rosas-arb-2017-1.pdf
Registro original: | INIA Treinta y Tres (TT)
Ejemplares: | TT - (102265-1) - PXI - AP - DD - The Plant Genome/2018/Rosas/1 -  -  - DIS