National BioResource Project (NBRP)::KOMUGI -Integrated Wheat Science Database- : Genome / Development

Gene symbol	Class				Synonyms	Chromosomes	Germplasms
Gene symbol	Level1	Level2	Level3	Level4	Synonyms	Chromosomes	Germplasms
Fr1	Frost Resistance					5AL	v:Hobbit,ma:Mapped to the mid-region of 5AL, 2.1 cM distal from Xcdo504-5A and Xwg644-5A and proximal to Xpsr426-5A,ma:Mapped 2 cM proximal to Xwg644-5A and Vrn-A1,ma:and flanked by deletion points 0.67 and 0.68
Fr1	Comment: Studies using Vrn-1 induced and natural mutants suggest that differences in frost tolerance previously associated to Fr1 are actually pleiotropic effects of Vrn-1 {10708}.
Fr-A2	Frost Resistance						dv:Triticum monococcum. Frost tolerant parent G3116, frost susceptible parent DV92,ma:The QTL mapped on chromosome 5AL had a LOD score of 9 and explained 49% of the variation in frost tolerance. Closest markers: Xbcd508-5A and Xucw90(Cbf3)-5A. These markers are 30 cM proximal to Xwg644-5A, which is closely linked to frost tolerance locus Fr-1. Eleven different Cbf transcription factors were identified at the Fr-A2 locus,ma:QTLs for frost tolerance in the Fr-2 region were also identified in wheat chromosome 5B (Fr-B2 {10079}) and in barley chromosome 5H(Fr-H2
Fr-A2	Comment:
Fr2	Frost Resistance					5DL	s:CS^7/Cheyenne 5D,ma:Fr2* mapped 10 cM proximal to Vrn-D1
Fr2	Comment:
Fr-B2	Frost Resistance				Fr-B1		ma:QTL mapped on chromosome 5BL, linked to Xgwm639-5B (this QTL explained 12-31% of the variance in frost tolerance) {10075}. Xgwm639-5B mapped close to Xmwg914-5B, and to Xbcd508-5B, a marker located at the peak of the Fr-A2 QTL {10075}. This data suggests that this locus is more likely orthologous to Fr-2 than to Fr-1
Fr-B2	Comment:
QWin.ipk-6A	Frost Resistance					6AS	v:Opata/W-7984 (ITMI) RI mapping population,v:Winter hardiness was contributed by W-7984,ma:Associated with Xfba85-6A and Xpsr10(Gli-2)-6A
QWin.ipk-6A	Comment: Responses to cold exposure and their genetics are reviewed in {0020,0274}.