Mapping of disease resistance loci in barley on the basis of visual assessment of naturally occurring symptoms

Using field-scored data of disease severity under natural infestation, we mapped loci affecting resistance to powdery mildew (Blumeria graminis DC f. sp. hordei Em. Marchal), leaf rust (Puccinia hordei Otth.), stem rust (Puccinia graminis f. sp. tritici Eriks. and E. Henn.), scald [Rhynchosporium se...

Full description

Saved in:
Bibliographic Details
Published in:Crop science 1998-05, Vol.38 (3), p.843-850
Main Authors: Spaner, D. (McGill University, Ste- Anne-de-Bellevue, QC, Canada.), Shugar, L.P, Choo, T.M, Falak, I, Briggs, K.G, Legge, W.G, Falk, D.E, Ullrich, S.E, Tinker, N.A, Steffenson, B.J
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Airborne microorganisms
ALBERTA
ALLELES
Barley
Biological and medical sciences
CARTE GENETIQUE
CHROMOSOME
CHROMOSOME MAPS
CHROMOSOMES
CROMOSOMAS
CROSSBREDS
DEVELOPMENTAL STAGES
Disease
DISEASE RESISTANCE
Diseases and pests
ENFERMEDADES FUNGOSAS
ERYSIPHE GRAMINIS
ERYSIPHE GRAMINIS F.SP. HORDEI
ETAPAS DE DESARROLLO
FENOTIPOS
Fundamental and applied biological sciences. Psychology
FUNGAL DISEASES
GENE
GENES
Genetic aspects
GENETIC MAPPING
GENETIC MAPS
GENETIC MARKERS
GENETIC RESISTANCE
Genetics
Genetics and breeding of economic plants
Grain
HORDEUM VULGARE
ILE DU PRINCE EDOUARD
ISLA DEL PRINCIPE EDUARDO
LOCI
LOCUS
MADURACION
MALADIE FONGIQUE
MANITOBA
MAPAS GENETICOS
MARCADORES GENETICOS
MARQUEUR GENETIQUE
MATURATION
ONTARIO
PATHOGENICITY
PATOGENICIDAD
Pest resistance
PHENOTYPE
PHENOTYPES
Plant pathogens
Plants
POUVOIR PATHOGENE
PRINCE EDWARD ISLAND
PRODUCTOS DEL CRUZAMIENTO
PRODUIT DE CROISEMENT
PUCCINIA GRAMINIS
PUCCINIA HORDEI
PYRENOPHORA TERES
RESISTANCE AUX MALADIES
RESISTANCE GENETIQUE
RESISTENCIA A LA ENFERMEDAD
RESISTENCIA GENETICA
RHYNCHOSPORIUM SECALIS
ROUILLE
ROYA
RUSTS
SIMPLE INTERVAL MAPPING
SINTOMAS
STADE DE DEVELOPPEMENT
SYMPTOME
SYMPTOMS
Varietal selection. Specialized plant breeding, plant breeding aims
VIRULENCE
WASHINGTON
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using field-scored data of disease severity under natural infestation, we mapped loci affecting resistance to powdery mildew (Blumeria graminis DC f. sp. hordei Em. Marchal), leaf rust (Puccinia hordei Otth.), stem rust (Puccinia graminis f. sp. tritici Eriks. and E. Henn.), scald [Rhynchosporium secalis (Oudem.) J.J. Davis], and net blotch (Pyrenophora teres Drechs.). The mapping population included parents and doubled-haploid progeny of the two-row barley cross Harrington/TR306. Resistance was affected by two to five loci, explaining 8 to 45% of the phenotypic variance, per disease. All chromosomes, except chromosome 5 (1H), contained regions with at least one disease resistance locus. One region on chromosome 4 (4H) contributed to resistance to stem rust, scald, and net blotch. This region has previously been reported to affect days to heading and maturity. Two known resistance genes in the population, Rpg1 and Mlg, were mapped to within 3 centimorgans (cM) of their previously estimated genomic locations by simple interval mapping of the field-scored data. This indicates that the genomic positions of disease resistance genes can be estimated accurately with simple interval mapping, even on the basis of field-scored data
ISSN:0011-183X
1435-0653
DOI:10.2135/cropsci1998.0011183X003800030037x