scholarly journals Rust resistance of the French wheat cultivar Renan

2008 ◽  
Vol 43 (No. 2) ◽  
pp. 53-60 ◽  
Author(s):  
A. Hanzalová ◽  
V. Dumalasová ◽  
T. Sumí kova ◽  
P. Bartoš
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Field Experiments ◽  
Dominant Gene ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Adult Plant ◽  
Leaf Rust Resistance Gene ◽  
Aegilops Ventricosa

Our field experiments confirmed the leaf rust resistance of cv. Renan in the Czech Republic. Whereas the leaf rust resistance gene <i>Lr37</i> possessed by Renan is generally effective as late as at the adult plant stage, we found one leaf rust isolate that caused resistant to moderately resistant reactions on NIL <i>Lr37</i> as well as on the cv. Renan already at the seedling stage. This isolate was used in the study of genetics of the leaf rust resistance of cv. Renan in greenhouse experiments. The presence of translocation from <i>Aegilops ventricosa</i> carrying the cluster of rust resistance genes <i>Lr37</i>, <i>Sr38</i> and <i>Yr17</i> was also determined by a PCR molecular marker. All experiments confirmed the presence of <i>Lr37</i> gene in cv. Renan. The presence of <i>Lr14a</i>, postulated earlier, could not be verified. The resistance of cv. Renan in the field was slightly higher than that of the line Tc/8//VPM1 possessing <i>Lr37</i>, which may indicate a more complex genetic base of leaf rust resistance in the cv. Renan. In the progeny of the cross Boka/Renan leaf rust resistance gene <i>Lr37</i> behaved as a recessive or partially dominant gene, stem rust resistance gene <i>Sr38</i> as a dominant gene.

Fine mapping of LrSV2, a race-specific adult plant leaf rust resistance gene on wheat chromosome 3BS

2014 ◽  
Vol 127 (5) ◽  
pp. 1133-1141 ◽  
Author(s):  
M. J. Diéguez ◽  
M. F. Pergolesi ◽  
S. M. Velasquez ◽  
L. Ingala ◽  
M. López ◽  
...  
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Fine Mapping ◽  
Rust Resistance ◽  
Wheat Chromosome ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Adult Plant ◽  
Leaf Rust Resistance Gene ◽  
Plant Leaf

scholarly journals Genetic analysis and molecular mapping of leaf rust resistance genes in the wheat line 5R618

2014 ◽  
Vol 50 (No. 4) ◽  
pp. 262-267 ◽  
Author(s):  
J. Wang ◽  
L. Shi ◽  
L. Zhu ◽  
X. Li ◽  
D. Liu
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Molecular Mapping ◽  
Dominant Gene ◽  
Puccinia Triticina ◽  
Leaf Rust Resistance ◽  
Triticum Aestivum L ◽  
Rust Resistance Gene ◽  
Leaf Rust Resistance Gene

The wheat (Triticum aestivum L.) line 5R618, bred at the China Agricultural University, is resistant in the seedling stage to the majority of the current Chinese pathotypes of wheat leaf rust (Puccinia triticina). To identify and map the leaf rust resistance gene in the 5R618 line, F<sub>2</sub> plants and F<sub>2:3</sub> families from a cross between 5R618 and Zhengzhou5389 (susceptible) were inoculated in the greenhouse with the Chinese P. triticina pathotype THJP. Results from the F<sub>2</sub> and F<sub>2:3</sub> populations indicate that a single dominant gene, temporarily designated&nbsp;Lr5R, conferred resistance. Using the molecular marker method, Lr5R was located on the 3DL chromosome. It was closely linked to the markers Xbarc71 and OPJ-09 with genetic distances of 0.9 cM and 1.0 cM, respectively. At present only one designated gene (Lr24) is located on the 3DL chromosome. The genetic distance between Lr5R&nbsp;and Lr24 confirms that Lr5R is a new leaf rust resistance gene.

scholarly journals A novel adult plant leaf rust resistance gene Lr2K38 mapped on wheat chromosome 1AL

2020 ◽  
Vol 13 (3) ◽  
Author(s):  
Suraj Sapkota ◽  
Mohamed Mergoum ◽  
Ajay Kumar ◽  
Jason D. Fiedler ◽  
Jerry Johnson ◽  
...  
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Wheat Chromosome ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Adult Plant ◽  
Leaf Rust Resistance Gene ◽  
Plant Leaf

Development of a molecular marker for the adult plant leaf rust resistance gene Lr35 in wheat

1999 ◽  
Vol 99 (3-4) ◽  
pp. 554-560 ◽  
Author(s):  
R. Seyfarth ◽  
C. Feuillet ◽  
G. Schachermayr ◽  
M. Winzeler ◽  
B. Keller
Keyword(s):  
Molecular Marker ◽  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Adult Plant ◽  
Leaf Rust Resistance Gene ◽  
Plant Leaf

scholarly journals Microsatellite mapping of adult-plant leaf rust resistance gene Lr22a in wheat

2007 ◽  
Vol 115 (6) ◽  
pp. 885-886 ◽  
Author(s):  
Colin W. Hiebert ◽  
Julian B. Thomas ◽  
Daryl J. Somers ◽  
Brent D. McCallum ◽  
Stephen L. Fox
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Adult Plant ◽  
Leaf Rust Resistance Gene ◽  
Plant Leaf ◽  
Microsatellite Mapping

An interchromosomal reciprocal translocation in wheat involving leaf rust resistance gene Lr34

Genome ◽  
1994 ◽  
Vol 37 (4) ◽  
pp. 556-559 ◽  
Author(s):  
P. L. Dyck ◽  
E. R. Kerber ◽  
T. Aung
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Adult Plant ◽  
Leaf Rust Resistance Gene ◽  
Wheat Leaf Rust ◽  
Wheat Leaf ◽  
Mother Cells

'Thatcher' backcross lines RL6058 and RL6077 have adult-plant leaf rust resistance and were believed to have Lr34. However, genetic analysis revealed that the genes in the two lines were independent of each other. Previous work demonstrated that Lr34 is located on chromosome 7D. The leaf rust resistance gene in RL6058 must be on chromosome 7DS because no recombinants were observed between it and gene Lr29, known to be on chromosome 7DS. It was also linked with Rc3 (30.25 ± 2.88%), a gene for purple coleoptile on chromosome 7DS. It was independent of Lr19 and NS1 (nonsuppressor mutant), which are located on 7DL. The leaf rust resistance gene in RL6077 was independent of genes Lr19 and Lr29. The presence of quadrivalents in pollen mother cells of the RL6058/RL6077 hybrid indicates that the Lr34 gene in RL6077 may have been translocated onto another chromosome. Lr34 from RL6058 and RL6077 may have been combined in four F3 lines derived from their intercross.Key words: Triticum aestivum, wheat, leaf rust resistance.

scholarly journals Evaluation and Mapping of a Leaf Rust Resistance Gene Derived from Hordeum vulgare subsp. spontaneum

2011 ◽  
Vol 40 (No. 3) ◽  
pp. 86-90 ◽  
Author(s):  
D. Kopahnke ◽  
M. Nachtigal ◽  
Ordon ◽  
F ◽  
J. Steffenson B
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Bulked Segregant Analysis ◽  
Dominant Gene ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Puccinia Hordei ◽  
Doubled Haploid Population ◽  
Leaf Rust Resistance Gene

Studies of marker development were performed on a doubled haploid population derived from the cross of a highly resistant line H. spontaneum 677 &times; Krona (susceptible). Previous segregation studies on F<sub>2</sub> and F<sub>3</sub> populations revealed that the resistance of H. spontaneum 677 was likely due to a single dominant gene. Bulked segregant analysis using AFLPs and SSRs was conducted to identify markers linked to this leaf rust resistance gene. By this approach the resistance gene was located on barley chromosome 2H with the closest markers linked at 6.1 cM (E35M54b) and 13.6 cM (Bmac0218) based on the analysis of 83 DH-lines. In order to get first hints whether this gene may be allelic to rph16 located on chromosome 2H STS marker MWG 2133 co-segregating with rph16 was tested but it turned out to be monomorphic. However, in a resistance test with a set of four different isolates of Puccinia hordei, H. spontaneum 677 showed a different reaction pattern from that of H. spontaneum 680, the source of rph16. Tests of allelism to confirm these results are in progress. &nbsp;

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