Tolerance of spring barley cultivars to leaf rust, Puccinia hordei

Euphytica ◽  
1980 ◽  
Vol 29 (2) ◽  
pp. 209-216 ◽  
Author(s):  
Th. Kramer ◽  
B. H. Gildemacher ◽  
M. Van der Ster ◽  
J. E. Parlevliet
Keyword(s):  
Leaf Rust ◽  
Spring Barley ◽  
Puccinia Hordei ◽  
Barley Cultivars

Origin of leaf rust adult plant resistance gene Rph20 in barley

Genome ◽  
2012 ◽  
Vol 55 (5) ◽  
pp. 396-399 ◽  
Author(s):  
Lee T. Hickey ◽  
Wendy Lawson ◽  
Greg J. Platz ◽  
Mark Dieters ◽  
Jerome Franckowiak
Keyword(s):  
Hordeum Vulgare ◽  
Leaf Rust ◽  
Plant Resistance ◽  
Dna Analysis ◽  
Adult Plant Resistance ◽  
Puccinia Hordei ◽  
Adult Plant ◽  
Hordeum Vulgare L ◽  
Barley Cultivars ◽  
Alternative Sources

Rph20 is the only reported, simply inherited gene conferring moderate to high levels of adult plant resistance (APR) to leaf rust ( Puccinia hordei Otth) in barley ( Hordeum vulgare L.). Key parental genotypes were examined to determine the origin of Rph20 in two-rowed barley. The Dutch cultivar ‘Vada’ (released in the 1950s) and parents, ‘Hordeum laevigatum’ and ‘Gull’ (‘Gold’), along with the related cultivar ‘Emir’ (a derivative of ‘Delta’), were assessed for APR to P. hordei in a disease screening nursery. The marker bPb-0837-PCR, co-located with Rph20 on the short arm of chromosome 5H (5HS), was used to screen genotypes for the resistance allele, Rph20.ai. Results from phenotypic assessment and DNA analysis confirmed that Rph20 originated from the landrace ‘H. laevigatum’ (i.e., Hordeum vulgare subsp. vulgare). Tracing back this gene through the pedigrees of two-rowed barley cultivars, indicated that Rph20 has contributed APR to P. hordei for more than 60 years. Although there have been no reports of an Rph20-virulent pathotype, the search for alternative sources of APR should continue to avoid widespread reliance upon a single resistance factor.

Response of Australian barley cultivars to leaf rust (Puccinia hordei)

1994 ◽  
Vol 34 (6) ◽  
pp. 783 ◽  
Author(s):  
PJ Cotterill ◽  
RG Rees ◽  
GJ Platz
Keyword(s):  
Leaf Rust ◽  
Puccinia Hordei ◽  
Barley Cultivars ◽  
Commercial Cultivars ◽  
Rust Pathogen ◽  
Infection Types ◽  
Moderately Resistant ◽  
Adult Plants

Thirty-eight Australian commercial cultivars of barley were screened as seedlings against 11 pathotypes of the leaf rust pathogen (Puccinia hordei Otth.) detected in Australia, and as adult plants in the field against the 2 predominant pathotypes (210 P+ and 200 P+) present in the eastern mainland states. Most cultivars were susceptible as seedlings to 10 of the pathotypes of P hordei (with infection types of 3 or 4 on a 0-4 scale) but only 17 were susceptible to pathotype 253 P-. Abyssinian, Franklin, Tallon and Triumph were susceptible to none, Skiff only to 210 P+, Grimmett and Shannon only to 210 P+ and 253 P- and Ulandra to pathotypes 202 P+, 243 P-, 243 P+, 253 and 262 P+. Cutter, Ketch, Prior, Schooner and Weeah were susceptible to all except 200 P-, 201 P-, 243 P-, and 253 P-, and Yerong to all except 200 P-, 201 P-, 202 Pt, 220 P+ and 262 P+. Some cultivars, notably Malebo, but also Corvette, Galleon, Schooner and, to a lesser extent, Yerong were not as susceptible (infection types of 3 to 3+/4-) to most pathotypes of P. hordei. As adult plants in the field, Abyssinian, Franklin, Tallon and Triumph were resistant, and Malebo and Ulandra moderately resistant/moderately susceptible to both pathotypes tested.

scholarly journals Resistance against barley leaf rust (Puccinia hordei) in West-European spring barley germplasm

Agronomie ◽  
2000 ◽  
Vol 20 (7) ◽  
pp. 769-782 ◽  
Author(s):  
Rients E. Niks ◽  
Ursula Walther ◽  
Heidi Jaiser ◽  
Fernando Martinez ◽  
Diego Rubiales
Keyword(s):  
Leaf Rust ◽  
Spring Barley ◽  
Puccinia Hordei ◽  
Barley Leaf Rust ◽  
Barley Leaf ◽  
Barley Germplasm ◽  
West European
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