Leaf rust resistance of some European varieties of wheat

Twenty-one European wheat varieties from the World Wheat Assortment in Prague-Ruzynĕ (Czechoslovakia) that were resistant to leaf rust were tested with Canadian leaf rust races 1, 5, 9, 11, 15, 30, 58, and 126. The patterns of rust reaction and genetic studies on representative varieties suggest that the varieties Belocerkovskaja 198, Bezostaja 1, Mironovskaja 264, Mironovskaja 808, Osetinskaja 3, Rannaja 12, Skorospelka 3b, Fertödi 293, and Sládkovičovo K 1004 have gene Lr3, the variety Halle 9H39 has gene Lr1, the varieties Erythrospermum 142, 953, and 974 I.Z.R. have genes Lr1 and Lr3, and the variety Etoile de Choisy gene Lr16. The other varieties tested (Flevina, Sambo, Stabil, Uhčetice 22/IV, and 22/V) have reactions that are different from any of those of the single gene lines tested. The varieties Weique and Salzmünder Bartweizen were resistant to all races tested.

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THE INHERITANCE OF LEAF RUST RESISTANCE IN SEVEN VARIETIES OF COMMON WHEAT

Canadian Journal of Plant Science ◽

10.4141/cjps61-047 ◽

1961 ◽

Vol 41 (2) ◽

pp. 342-359 ◽

Cited By ~ 19

Author(s):

R. G. Anderson

Keyword(s):

Leaf Rust ◽

Common Wheat ◽

Rust Resistance ◽

Leaf Rust Resistance ◽

Susceptible Variety ◽

The Other ◽

Seedling Resistance ◽

Genetic Studies ◽

Type Reaction ◽

Biological Studies

The inheritance of seedling resistance to races 1a, 5a, 11, 15a and 126a of leaf rust was studied in the varieties Exchange and Selkirk and to races 1a and 15a in the varieties Lee, Gabo, Timstein, Mayo 52 and Mayo 54. Thatcher was used as the susceptible variety. Rust tests were carried out on F1 and F2 populations of diallel crosses among these varieties and on F2 families from the backcrosses to Thatcher. Two genes were found. One gene LrE conditions a (2) type reaction to all five races in Exchange and Selkirk. The other gene LrL conditions a (; 1 =) type reaction to races 1a and 15a in all seven varieties. Isogenic lines possessing these genes are being developed in the varieties Prelude and Thatcher. The importance of such lines in future genetic studies and their application in other biological studies are discussed.The increase in amount of leaf rust found on Lee and Selkirk in Canada during the period 1951–1958 is accounted for by the increase of races which render the gene LrL ineffective in these two varieties.

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THE INHERITANCE OF LEAF RUST RESISTANCE IN FOUR COMMON WHEAT VARIETIES POSSESSING GENES AT OR NEAR THE Lr3 LOCUS

Canadian Journal of Genetics and Cytology ◽

10.1139/g73-013 ◽

1973 ◽

Vol 15 (1) ◽

pp. 127-134 ◽

Cited By ~ 21

Author(s):

M. E. A. Haggag ◽

P. L. Dyck

Keyword(s):

Genetic Analysis ◽

Leaf Rust ◽

Common Wheat ◽

Rust Resistance ◽

Leaf Rust Resistance ◽

Suppressor Gene ◽

The Other ◽

Wheat Varieties ◽

Seedling Resistance

The inheritance of seedling resistance to leaf rust was studied in the wheat varieties Democrat, Sinvalocho, Bage and Klein Aniversario and in the backcross lines developed from them. The Lr3 gene from Democrat and Sinvalocho conferred resistance to races 1, 9 and 11. Genetic analysis of the Sinvalocho × Prelude0 line (with Lr3), using a rust culture that was avirulent on Democrat × Thatcher6 and Sinvalocho etc., but virulent on Sinvalocho × Prelude6, indicated the presence of a suppressor gene in Prelude. The variety Bage has two genes for resistance to races 9 and 11, one giving a 0; reaction and the other a type 2. The former gene was present in Bage × Thatcher8 and was allelic to, or closely linked with, the Lr3 gene. It is temporarily designated Lr3bg. Klein Aniversario may have two independently inherited genes conferring resistance to race 11 and two to race 161. One of the genes conferred resistance to both races and was transferred to Thatcher and Prelude. This gene was also allelic to, or closely linked with, the Lr3 gene and is designated Lr3ka. These results suggest a complex Lr3 locus with a series of alleles or closely linked genes.

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Genetic studies in wheat for leaf rust resistance (Puccinia recondita)

AFRICAN JOURNAL OF BIOTECHNOLOGY ◽

10.5897/ajb10.1809 ◽

2011 ◽

Vol 10 (16) ◽

pp. 3051-3054 ◽

Cited By ~ 2

Author(s):

Hussain Fida ◽

Ashraf M ◽

A Hameed Muhammad ◽

Hussain Nisar ◽

Ahmad Sial Riaz

Keyword(s):

Leaf Rust ◽

Rust Resistance ◽

Leaf Rust Resistance ◽

Puccinia Recondita ◽

Genetic Studies

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Linkage and expression of genes for resistance to leaf rust and stem rust in triticale

Genome ◽

10.1139/g90-018 ◽

1990 ◽

Vol 33 (1) ◽

pp. 115-118 ◽

Cited By ~ 5

Author(s):

S. J. Singh ◽

R. A. McIntosh

Keyword(s):

Leaf Rust ◽

Stem Rust ◽

Genetic Linkage ◽

Rust Resistance ◽

Single Gene ◽

Leaf Rust Resistance ◽

Stem Rust Resistance ◽

Stem Rust Resistance Gene ◽

Expression Of Genes ◽

Triticosecale Wittmack

Leaf rust resistance in five triticale cultivars was controlled by a single gene designated LrSatu. This gene was closely linked in coupling with the stem rust resistance gene SrSatu believed to be located on chromosome 3R. Approximately 50% of lines in the 17th International Triticale Screening Nursery possessed SrSatu and LrSatu. Lines carrying SrSatu and LrSatu occurred more frequently among complete than in substituted triticale lines.Key words: × Triticosecale Wittmack, P. graminis f.sp. tritici, P. recondita f.sp. tritici, leaf rust, stem rust, rust resistnace, genetic linkage.

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Genetic Improvement in Yield, Yield Attributes and Leaf Rust Resistance in Semi-dwarf Wheat Varieties Developed in India from Last 40 Years

International Journal of Agricultural Research ◽

10.3923/ijar.2011.747.753 ◽

2011 ◽

Vol 6 (10) ◽

pp. 747-753 ◽

Cited By ~ 5

Author(s):

B. Abrar Yasin ◽

M. Ram ◽

Shubhra Singh ◽

B.A Wani

Keyword(s):

Leaf Rust ◽

Genetic Improvement ◽

Rust Resistance ◽

Leaf Rust Resistance ◽

Wheat Varieties ◽

Yield Attributes ◽

Dwarf Wheat

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Effectiveness of major resistance genes and identification of new sources for disease resistance in wheat

Acta Agronomica Hungarica ◽

10.1556/aagr.59.2011.3.7 ◽

2011 ◽

Vol 59 (3) ◽

pp. 241-248 ◽

Cited By ~ 2

Author(s):

G. Vida ◽

M. Cséplő ◽

G. Gulyás ◽

I. Karsai ◽

T. Kiss ◽

...

Keyword(s):

Disease Resistance ◽

Powdery Mildew ◽

Leaf Rust ◽

Resistance Genes ◽

Rust Resistance ◽

Genetic Material ◽

Leaf Rust Resistance ◽

Wheat Varieties ◽

Major Resistance Genes ◽

Greenhouse Tests

Among the factors which determine yield reliability an important role is played by disease resistance. One of the breeding aims in the Martonvásár institute is to develop wheat varieties with resistance to major diseases. The winter wheat varieties bred in Martonvásár are examined in artificially inoculated nurseries and greenhouses for resistance to economically important pathogens. The effectiveness of designated genes for resistance to powdery mildew and leaf rust has been monitored over a period of several decades. None of the designated major resistance genes examined in greenhouse tests is able to provide complete resistance to powdery mildew; however, a number of leaf rust resistance genes provide full protection against pathogen attack (Lr9, Lr19, Lr24, Lr25, Lr28 and Lr35). In the course of marker-assisted selection, efficient resistance genes (Lr9, Lr24, Lr25 and Lr29) have been incorporated into Martonvásár wheat varieties. The presence of Lr1, Lr10, Lr26, Lr34 and Lr37 in the Martonvásár gene pool was identified using molecular markers. New sources carrying alien genetic material have been tested for powdery mildew and leaf rust resistance. Valuable Fusarium head blight resistance sources have been identified in populations of old Hungarian wheat varieties. Species causing leaf spots (Pyrenophora tritici-repentis, Septoria tritici and Stagonospora nodorum) have gradually become more frequent over the last two decades. Tests on the resistance of the host plant were begun in Martonvásár four years ago and regular greenhouse tests on seedlings have also been initiated.

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