Chromosome location of genes for resistance to powdery mildew in common wheat (Triticum aestivum L.) 1. Mlk and other alleles at the Pm3 locus

Euphytica ◽  
1993 ◽  
Vol 68 (3) ◽  
pp. 223-229 ◽  
Author(s):  
Friedrich J. Zeller ◽  
J�rgen Lutz ◽  
Uwe Stephan
Genome ◽  
1987 ◽  
Vol 29 (3) ◽  
pp. 463-466 ◽  
Author(s):  
P. L. Dyck ◽  
E. R. Kerber ◽  
O. M. Lukow

A gene for resistance to Puccinia recondita, originally detected in wheat (Triticum aestivum L.) accessions PI58548, PI268454, and PI268316, has been located on the long arm of chromosome 1B, 3.1 ± 1.2 crossover units from the centromere. In a cross between the backcross line RL6057 containing this new gene, now designated Lr33, and the backcross line RL6078 containing gene Lr26, gene Lr33 is closely linked to gene Lr26 (or the translocation breakpoint) with an estimated 2.6 ± 0.8 recombination value. RL6057 and RL6078 differ in gliadin bands that are controlled by genes on the short arm of chromosome 1B or 1R. The banding difference was completely associated with the presence or absence of Lr26. Key words: Triticum, Puccinia, linkage.


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