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GrainGenes Two Point Data Report: Lr47/Xabc465

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Two Point Data
Lr47/Xabc465
Locus 1
Lr47
Locus 2
Xabc465-7A
Gene
Lr47 (Triticum)
Distance
0
Distance Units
cM
Trait marker
Yes
Chromosome
7A
Species
Triticum aestivum
Reference
ReferenceDubcovsky J MAS Wheat. Bringing Genomics to the Wheat Fields. Disease resistance. Leaf rust. Lr47 Marker Assisted Selection in Wheat Homepage.
URL
http://maswheat.ucdavis.edu/protocols/Lr47/Background, methods and protocols for marker-assisted selection of Lr47at MAS wheat
http://maswheat.ucdavis.edu/Marker Assisted Selection in Wheat Homepage
Remark
When a translocated alien fragment is in a wild-type Ph1 background it no longer recombines with wheat chromatin (or only at very low frequencies). Therefore, the segment is inherited as a whole, so if there is a molecular marker located within the fragment containing the translocated gene, the genetic distance to the gene would be zero, even when the physical distance could be very large.
Lr47 was translocated from T. speltoides into hexaploid wheat. Usually no recombination is expected between chromatin of T. speltoides and T. aestivum, so the linkage between Lr47 and Xabc465 is complete.
Data Source
Dubcovsky, Jorge 

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