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GrainGenes Gene Report: Lr20 (Triticum)

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Gene
Lr20 (Triticum)  [ Marker Report ]
Gene Class
Reaction to Puccinia recondita Rob. ex Desm.
Allele
Lr20-null (Triticum)
Locus
Lr20
Reference
ReferenceNeu C et al. (2002) Genetic mapping of the Lr20-Pm1 resistance locus reveals suppressed recombination on chromosome arm 7AL in hexaploid wheat Genome 45:737-744.
ReferenceDyck PL and Johnson R (1988) Resistance to the leaf rust or brown rust pathogen (Puccinia recondita) due to Lr20 and its temperature sensitivity in European spring wheats. Proceedings of the 7th European and Mediterranean Cereal Rusts Conference, Vienna, Austria 91-93.
ReferenceBrowder LE (1972) Designation of two genes for resistance to Puccinia recondita in Triticum aestivum. Crop Science 12:705-706.
QTL
QLr.locus-7A.3
Chromosome
7A
ReferenceSears ER and Briggle LW (1969) Mapping the gene Pm1 for resistance to Erysiphe graminis f. sp. tritici on chromosome 7A of wheat. Crop Science 9:96-97.
Chromosome Arm
7AL
ReferenceSears ER and Briggle LW (1969) Mapping the gene Pm1 for resistance to Erysiphe graminis f. sp. tritici on chromosome 7A of wheat. Crop Science 9:96-97.
Germplasm
Hexaploid stockAxminster
ReferencePugsley AT and Carter MV (1953) Resistance of twelve varieties of Triticum vulgare to Erysiphe graminis tritici. Australian Journal of Biological Sciences 6:335-346.
[ Show all 19 ]
Comment
Hexaploid stocks: see Pm1 and Sr15, with which Lr20 is always associated. Lr20 in Sicco appears to differ from that in Sappo, Timmo and Maris Halberd (217).
Wheat Gene Catalog Reference
217
ReferenceDyck PL and Johnson R (1988) Resistance to the leaf rust or brown rust pathogen (Puccinia recondita) due to Lr20 and its temperature sensitivity in European spring wheats. Proceedings of the 7th European and Mediterranean Cereal Rusts Conference, Vienna, Austria 91-93.
Info Source
ReferenceMcIntosh RA et al. (1995) Catalogue of gene symbols for wheat. Proceedings of the 8th International Wheat Genetics Symposium 1333-1500.
Data Curator
Hart, Gary E.95.08.24