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GrainGenes Reference Report: TAG-117-1205

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Reference	TAG-117-1205
Title	Pm23: a new allele of Pm4 located on chromosome 2AL in wheat.
Journal	Theoretical and Applied Genetics
Year	2008
Volume	117
Pages	1205-1212
Author	[ Hide all but 1 of 8 ] Hao Y Liu A Wang Y Feng D Gao J Li X Liu S Wang H
Abstract	Powdery mildew, caused by Blumeria graminis f. sp. tritici, is one of the major diseases of common wheat (Triticum aestivum) worldwide. The powdery mildew resistance gene Pm23, identified in the common wheat Line 81-7241 and originally assigned to wheat chromosome 5A, was relocated on chromosome 2AL with the aid of molecular markers. Mapping of microsatellite markers in two wheat crosses segregating for Pm23 and Pm4b, respectively, in combination with the reported mapping of Pm4a, indicated that the three genes were all linked to the marker Xgwm356 with a distance of 3-5 cM. Allelism between Pm4b and Pm23 was then confirmed, when the progenies of a cross between VPM1 (Pm4b) and Line 81-7241, were shown to be all resistant to a B. graminis isolate avirulent to the both parents. Pm23 is therefore a new allele of the Pm4 locus, and was redesignated as Pm4c.
External Databases	http://dx.doi.org/10.1007/s00122-008-0827-y
Locus	YrR61
Summarized in	MAS Wheat. Bringing Genomics to the Wheat Fields. Disease Resistance. Stripe Rust Resistance. YrR61 MAS Wheat. Marker Assisted Selection in Wheat.

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