Linkage of Lr55 wheat leaf rust resistance gene with microsatellite and DArT-based markers

2021 ◽  
pp. 101674
Author(s):  
Aleksandra Pietrusińska ◽  
Mirosław Tyrka
Keyword(s):  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Leaf Rust Resistance Gene ◽  
Wheat Leaf Rust ◽  
Wheat Leaf

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.

Genetic Mapping of the Wheat Leaf Rust Resistance Gene ()

Crop Science ◽  
2008 ◽  
Vol 48 (3) ◽  
pp. 1020 ◽  
Author(s):  
Colin W. Hiebert ◽  
Julian B. Thomas ◽  
Brent D. McCallum ◽  
Daryl J. Somers
Keyword(s):  
Genetic Mapping ◽  
Leaf Rust ◽  
Resistance Gene ◽  
Rust Resistance ◽  
Leaf Rust Resistance ◽  
Rust Resistance Gene ◽  
Leaf Rust Resistance Gene ◽  
Wheat Leaf Rust ◽  
Wheat Leaf
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