Mapping Data

Experiment

• Experiment
  TEXT-QTL
• Chromosome
  7
• Reference
  J:89536 Glant TT, et al., Disease-associated qualitative and quantitative trait loci in proteoglycan-induced arthritis and collagen-induced arthritis. Am J Med Sci. 2004 Apr;327(4):188-95
• ID
  MGI:3044939

Genes

Gene	Assay Type
Pgia3	resistance/susceptibility

Notes

• Experiment
  Linkage analysis at an average resolution of 10 cM was performed on 3 separate mouse crosses to map QTLs associated with proteoglycan-induced arthritis (PGIA) and collagen-induced arthritis (CIA).
  
  559 (BALB/c x DBA/2)F2 MHC-matched animals and 402 (BALB/c x DBA/1J)F2 MHC-unmatched animals were analyzed for linkage to PGIA.
  
  537 (BALB/c x DBA/1J)F2 animals were analyzed for linkage to CIA.
  
  With respect to PGIA, parental strain BALB/c is highly susceptible whereas parental strains DBA/2 and DBA/1J arefullyresistant. As expected, (BALB/c x DBA/2)F1 hybrids are resistant to PGIA, but interestingly (BALB/c x DBA/1J)F1 hybrids are susceptible to PGIA. This is unusual because the BALB/c allele typically exhibits recessive susceptibility to disease, but this isnot the case with the cross to DBA/1J.
  
  With respect to CIA, parental strain DBA/1J is highly susceptible whereas parental strains BALB/c and DBA/2 are fully resistant. All F1s exhibited susceptibility to CIA.
  
  The PGIA QTL identified here on Chr 7 was equated with Pgia3, previously mapped using the same mouse population, (BALB/cCrl x DBA/2Crl)F2, in J:66460 in 1999. Pgia3 mapped to central mouse Chromosome 7 in association with PGIA susceptibility (LOD=3) and onset (LOD=5) in the MHC-matched (BALB/c x DBA/2)F2 populations.