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Acceso al texto completo restringido a Biblioteca INIA Las Brujas. Por información adicional contacte bibliolb@inia.org.uy.
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Biblioteca (s) :  INIA La Estanzuela; INIA Las Brujas.
Fecha :  12/11/2015
Actualizado :  19/11/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Autor :  SILVA, P.; CALVO-SALAZAR, V.; CONDON, F.; QUINCKE, M.; PRITSCH, C.; GUTIÉRREZ, L.; CASTRO, A.; HERRERA-FOESSEL, S.; VON ZITZEWITZ, J.; GERMAN, S.
Afiliación :  MARIA PAULA SILVA VILLELLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VIOLETA CALVO-SALAZAR, CIMMYT (Centro Internacional de Mejoramiento de Maíz y Trigo); FEDERICO CONDON PRIANO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARTIN CONRADO QUINCKE WALDEN, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; CLARA PRITSCH, Universidad de la República (UdelaR)/ Facultad de Agronomía; LUCÍA GUTIÉRREZ, Universidad de la República (UdelaR)/ Facultad de Agronomía; ARIEL CASTRO, Universidad de la República (UdelaR)/ Facultad de Agronomía; SYBIL HERRERA-FOESSEL, CIMMYT (Centro Internacional de Mejoramiento de Maíz y Trigo); JARISLAV VON ZITEZWEITZ, SECOBRA; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Effects and interactions of genes Lr34, Lr68 and Sr2 on wheat leaf rust adult plant resistance in Uruguay
Fecha de publicación :  2015
Fuente / Imprenta :  Euphytica, 2015, v. 204, p. 599?608.
ISSN :  1573-5060.
DOI :  10.1007/s10681-014-1343-6
Idioma :  Inglés
Contenido :  ABSTRACT. Achieving durable resistance to leaf rust (LR), caused by Puccinia triticina, in wheat has been one of the main objectives of breeding programs. Durability of LR resistance is considered to be associated with adult plant resistance (APR) genes that are quantitatively inherited and whose expression is largely influenced by environment. Our objective was to study the effects and interactions of APR genes Lr34, Lr68 and Sr2 on LR response in Uruguay using two BC1F6 populations (?LE2304*2/Parula? and ?ORL99192*2/Parula?). The experimental material was screened for LR in three artificially inoculated environments (La Estanzuela 2012 and 2013 and Young 2012). Linked molecular markers were used to detect the presence of the genes conferring resistance to LR. Gene Lr34 was fixed in the ?LE2304*2/Parula? population. Lr68?Sr2 resulted in a reduction of 79 % of the LR area under the disease progress curve (AUDPC), while the presence of Lr68 alone resulted in a reduction of 51 %. In the ?ORL99192*2/Parula? population, the combined effect of Lr34?Lr68?Sr2 led to the highest reduction of LR AUDPC (73 %). Individually, Lr34 and Lr68 resulted in a reduction of the LR AUDPC of 14 and 50 %, respectively. Sr2 alone did not reduce LR AUDPC but enhanced the effect of either Lr34 or Lr68. Unlike previous reports Lr68 conferred a higher level of LR resistance than Lr34 in Uruguay. @Springer Science+Business Media Dordrecht 2015
Palabras claves :  ADDITIVE RESISTANCE; ADULT PLANT RESISTANCE; DESARROLLO LENTO DE ROYA; GENES DE RESISTENCIA DE PLANTA ADULTA; GENES DE RESISTENCIA DE PLÁNTULAS; GENES MAYORES; GENES MENORES; PUCCINIA TRITICINA; ROYA DE LA HOJA DE TRIGO; SLOW RUSTING; SLOW RUSTING RESISTANCE; TRITICUM AESTIVUM.
Thesagro :  TRIGO; TRITICUM AESTIVUM.
Asunto categoría :  F30 Genética vegetal y fitomejoramiento
Marc :  Presentar Marc Completo
Registro original :  INIA Las Brujas (LB)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LB100786 - 1PXIAP - PPPP/EUPHYTICA/2015

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Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy.
Registro completo
Biblioteca (s) :  INIA La Estanzuela.
Fecha actual :  08/09/2014
Actualizado :  07/11/2019
Tipo de producción científica :  Artículos en Revistas Indexadas Internacionales
Circulación / Nivel :  A - 1
Autor :  HICKEY, L.T.; LAWSON, W.; PLATZ, G.J.; FOWLER, R.A; ARIEF, V.N.; DIETERS, M.; GERMAN, S.; FLETCHER, S.; PARK, R.F.; PEREYRA, S.; SINGH, D.; FRANCKOWIAK, J.
Afiliación :  SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título :  Mapping quantitative trait loci for partial resistance to powdery mildew in an Australian barley population.
Fecha de publicación :  2012
Fuente / Imprenta :  Crop Science, v. 52, n. 3, p. 1021-1032, 2012.
ISSN :  1435-0653
DOI :  10.2135/cropsci2011.10.0535
Idioma :  Inglés
Contenido :  ABSTRACT:Genomic regions infl uencing resistance to powdery mildew [Blumeria graminis (DC.) E.O.Speer f. sp. hordei Ém. Marchal] were detected in a doubled haploid (DH) barley (Hordeum vulgare L.) population derived from a cross between the breeding line ND24260 and cultivar Flagship when evaluated across four fi eld environments in Australia and Uruguay. Signifi cant quantitative trait loci (QTL) for resistance to B. graminis were detected on six of the seven chromosomes (1H, 2H, 3H, 4H, 5H, and 7H). A QTL with large effect donated by ND24260 mapped to the short arm of chromosome 1H (1HS) conferring near immunity to B. graminis in Australia but was ineffective in Uruguay. Three QTL donated by Flagship contributed partial resistance to B. graminis and were detected in at least two environments. These QTL were mapped to chromosomes 3H, 4H,and 5H (5HS) accounting for up to 18.6, 3.4, and 8.8% phenotypic variation, respectively. The 5HS QTL contributed partial resistance to B. graminis in all fi eld environments in both Australia and Uruguay and aligned with the genomic region of Rph20, a gene conferring adult plant resistance (APR) to leaf rust (Puccinia hordei Otth), which is found in some cultivars having ?Vada? or ?Emir? in their parentage. Selection for favorable marker haplotypes within the 3H, 4H, and 5H QTL regions can be performed even in the presence of single (major) gene resistance. Pyramiding such QTL may provide an effective and potentially durable form of resista... Presentar Todo
Palabras claves :  ADULT PLANT RESISTANCE; BLUMERIA GRAMINIS F. SP. HORDEI; NEAR IMMUNITY; PARTIAL RESISTANCE; QTL; QUANTITATIVE TRAIT LOCI; RPH20.
Thesagro :  CEBADA; HORDEUM VULGARE; PUCCINIA HORDEI.
Asunto categoría :  F30 Genética vegetal y fitomejoramiento
Marc :  Presentar Marc Completo
Registro original :  INIA La Estanzuela (LE)
Biblioteca Identificación Origen Tipo / Formato Clasificación Cutter Registro Volumen Estado
LE100018 - 1PXIAP - DDPP/CROP SCIENCE/2012
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