Fecha/hora: 12/06/2024 10:10:26

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 31/08/2016
Fecha de la última actualización: | 05/11/2019
Autoria: | CALVO-SALAZAR, V.; SINGH, R. P.; HUERTA-ESPINO, J.; CRUZ-IZ QUIERDO, S.; LOBATO-ORTIZ, R.; SANDOVAL-ISLAS, S.; VARGAS-HERNÁNDEZ, M.; GERMAN, S.; SILVA, P.; BASNET, B. R.; LAN, C. X.; HERRERA-FOESSEL, S. A.
Afiliación: | SILVIA ELISA GERMAN FAEDO, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; MARIA PAULA SILVA VILLELLA, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.
Título: | Genetic Analysis of Resistance to Leaf Rust and Yellow Rust in Spring Wheat Cultivar Kenya Kongoni.
Año de publicación: | 2015
Fuente/Imprenta: | Plant Disease, v. 99, no.1153-1160, 2015.
ISSN: | 0191-2917
DOI: | 10.1094/PDIS- 07-14 -0718-RE
Idioma: | Inglés
Notas: | Article history: Accepted for publication 9 February 2015/Published Online:23 Jun 2015.

Contenido:

Abstract: The Kenyan wheat (Triticum aestivum L.) ?Kenya Kongoni ?exhibits high levels of adult plant resistance (APR) to leaf rust (LR) and yellow
rust (YR). We determined the genomic regions associated with LR and YR resistance in a population of 148 recombinant inbred lines generated
from a cross between ? Avocet-YrA ?and Kenya Kongoni. Field experi-ments to characterize APR to LR and YR were conducted in four and
two Mexican or Uruguayan environments, respectively. A linkage map was constructed with 438 diversity arrays technology and 16 simple-
sequence repeat markers by JoinMap 4.1 software. Genetic analyses showed that resistance to both rusts was determined by four to five
APR genes, including Lr46/Yr29 and Sr2/Lr27/Yr30 . Quantitative trait loci (QTL) analysis indicated that pleiotropic APR loci QYLr.cim-1BL
corresponding to Lr46/Yr29 and QYLr.cim-7BL that is a putative novel QTL accounted for 5 to 57% and 12 to 35% of the phenotypic variation
for resistance to LR and YR, respectively. These loci, in combination with another three LR QTL and two YR QTL, respectively, conferred
high levels of resistance to both LR and YR in wheat under Mexican and Uruguayan environments. Among ot her detected QTL, QLr.cim-1DS,
QLr.cim-2BL, and QYLr.icm-7BL may be new loci for APR to both rusts in common wheat.

Thesagro: | ENFERMEDADES DE LAS PLANTAS; PUCCINIA GRAMINIS; PUCCINIA STRIIFORMIS.
Categoría del tema: | H20 Enfermedades de las plantas
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/13737/1/Plant-Disease-v.-99-no.1153-1160-2015..pdf
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (101600-1) - PXI - AP - DD -  -  -  - DIS