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 | Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
21/02/2014 |
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Actualizado : |
26/02/2018 |
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Tipo de producción científica : |
Trabajos en Congresos/Conferencias |
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Autor : |
CASTRO, A.; GERMAN, S.; GONZÁLEZ, S.N.; HAYES, P.M.; PEREYRA, S.; PEREZ, C. |
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Afiliación : |
EEMAC, Facultad de Agronomía, UdelaR, Paysandú, Uruguay.; SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; SILVANA NOEMI GONZALEZ PARODI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; Barley project, Department of Crop and Soil Sciences, Oregon State University, Corvallis OR 97331, USA.; SILVIA ANTONIA PEREYRA CORREA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; EEMAC, Facultad de Agronomía, UdelaR, Paysandú, Uruguay. |
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Título : |
QTL analysis of spot blotch and leaf rust resistance in the BCD47 × Baronesse barley mapping population. |
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Fecha de publicación : |
2008 |
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Fuente / Imprenta : |
International Barley Genetics Symposium,10.,Alexandria, Egypt: ICARDA, Proceedings, 2008. |
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Páginas : |
p. 311-319. |
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Idioma : |
Inglés |
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Contenido : |
Abstract
Leaf rust (LR) (caused by Puccinia hordei) and spot blotch (SB) (caused by Cochliobolus
sativus) are two of the main diseases of barley in Uruguay. We studied the genetics
of the resistance to both diseases present in a doubled-haploid (DH) population derived
from the cross BCD47 × Baronesse. BCD47 has low SB severity and high susceptibility to
LR, while Baronesse is susceptible to SB and has low susceptibility to LR. Both resistances
were expressed at the adult plant stage. The population was phenotyped in 9 environments
for each disease. Four QTLs were detected for SB, on chromosomes 1H, 3H, 6H and
7H. In three of them, BCD47 contributed the resistant alleles. The QTLs on chromosome
1H (located in the Bmac213-Bmag770 interval) and chromosome 3H (located in the
Bmag225-Bmag013 interval) were the most consistent across environments. Two main
QTLs were detected for LR on chromosomes 6H (Baronesse contributing the resistant
allele) and 7H (BCD47 contributing the resistant allele), coincident with SB
resistance QTLs. The QTL on chromosome 6H (linked to the SSR Bmag173) was the
most consistent across environments. |
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Palabras claves : |
RESISTENCIA A LA ROYA DE LA HOJA. |
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Thesagro : |
CEBADA; ROYA. |
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Asunto categoría : |
H20 Enfermedades de las plantas |
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Marc : |
LEADER 01814naa a2200229 a 4500
001 1041375
005 2018-02-26
008 2008 bl uuuu u00u1 u #d
100 1 $aCASTRO, A.
245 $aQTL analysis of spot blotch and leaf rust resistance in the BCD47 × Baronesse barley mapping population.
260 $c2008
300 $ap. 311-319.
520 $aAbstract Leaf rust (LR) (caused by Puccinia hordei) and spot blotch (SB) (caused by Cochliobolus sativus) are two of the main diseases of barley in Uruguay. We studied the genetics of the resistance to both diseases present in a doubled-haploid (DH) population derived from the cross BCD47 × Baronesse. BCD47 has low SB severity and high susceptibility to LR, while Baronesse is susceptible to SB and has low susceptibility to LR. Both resistances were expressed at the adult plant stage. The population was phenotyped in 9 environments for each disease. Four QTLs were detected for SB, on chromosomes 1H, 3H, 6H and 7H. In three of them, BCD47 contributed the resistant alleles. The QTLs on chromosome 1H (located in the Bmac213-Bmag770 interval) and chromosome 3H (located in the Bmag225-Bmag013 interval) were the most consistent across environments. Two main QTLs were detected for LR on chromosomes 6H (Baronesse contributing the resistant allele) and 7H (BCD47 contributing the resistant allele), coincident with SB resistance QTLs. The QTL on chromosome 6H (linked to the SSR Bmag173) was the most consistent across environments.
650 $aCEBADA
650 $aROYA
653 $aRESISTENCIA A LA ROYA DE LA HOJA
700 1 $aGERMAN, S.
700 1 $aGONZÁLEZ, S.N.
700 1 $aHAYES, P.M.
700 1 $aPEREYRA, S.
700 1 $aPEREZ, C.
773 $tInternational Barley Genetics Symposium,10.,Alexandria, Egypt: ICARDA, Proceedings, 2008.
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