Fecha/hora: 06/06/2024 15:20:24

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 06/06/2019
Fecha de la última actualización: | 07/06/2019
Autoria: | RAFFO, M.A.; PRITSCH, C.; AZZIMONTI, G.; PEREYRA, S.; QUINCKE, M.; BONNECARRERE, V.; SILVA, P.; CASTRO, A.; LADO, B.; BARAIBAR, S.; GARCIA, R.; GERMAN, S.
Afiliación: | MIGUEL ANGEL RAFFO BUSCO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLARA PRITSCH; GUSTAVO AZZIMONTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARTIN CONRADO QUINCKE WALDEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA VICTORIA BONNECARRERE MARTINEZ, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA PAULA SILVA VILLELLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; ARIEL CASTRO; BETTINA LADO LINDNER, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVINA BARAIBAR PEDERSEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; RICHARD ANSELMO GARCIA USUCA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Introgression of the Coupled Sr2-Fhb1for Resistance to Stem Rust and Fusarium Head Blight into Uruguayan Elite Wheat Cultivars.[Poster]
Año de publicación: | 2018
Fuente/Imprenta: | In: Proceedings of the Borlaug Global Rust Initiative Technical Workshop ,14-18 April, 2018, Marrakesh, Marruecos.
Idioma: | Inglés
Contenido: | Abstract: Stem rust (SR) and Fusarium head blight (FHB) threaten the sustainability of wheat production worldwide. Sr2 is a widely used gene conferring partial, but durable, resistance to SR. Fhb1 confers a significant level of FHB resistance, but is poorly represented in the INIA-Uruguay wheat-breeding program. Sr2 and Fhb1 are linked in repulsion (~3 cM apart) on chromosome 3B. However, lines with Sr2 and Fhb1 in coupling were recently developed at the University of Minnesota, USA (kindly provided by J. Anderson). In order to incorporate Sr2/Fhb1 into Uruguayan elite wheat cultivars the donor line was crossed and backcrossed with four cultivars lacking both genes and expressing an intermediate to low level of resistance to SR and FHB: G?nesis 2375, G?nesis 6.87, INIA Madrugador, and INIA Don Alberto. Genotypes carrying Sr2/Fhb1 were selected using molecular marker UMN10; 250 BC2F1 were obtained for each recurrent parent. BC3F1 plants positive for UMN10 will be selected. The effect of Sr2/Fhb1 on response to SR and FHB in the different genetic backgrounds will be quantified by comparing disease severities of BC3F2 homozygotes with and without the UMN10 marker. Hopefully the introduction of Sr2/Fhb1 will contribute in reducing the risk of SR and FHB in wheat crops in Uruguay.
Palabras-Clave: | FUSARIUM; PLATAFORMA FENOTIPADO DE TRIGO; RESISTENCIA ROYA DEL TALLO; STEM RUST; TIZÓN FOLIAR.
Thesagro: | TRIGO.
Categoría del tema: | H20 Enfermedades de las plantas
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (102890-1) - PXI - PS - DD -  -  -  - DIS