The AXB and BXA set of RI strains are useful in the genetic analysis of complex diseases. The individual strains within the RI set also differ in their susceptibility to infectious diseases and in their responses to alcohol, stress, and endotoxin. AXB and BXA strains are derived from the C57BL/6J (Stock No. 000664) and A/J (Stock No. 000646) progenitor strains.Read More +
Through high density SNP analysis, some AXB and BXA recombinant inbred strains were shown to be the same or nearly the same genetically. AXB13/PgnJ and AXB14/PgnJ are considered "sister strains" being identical throughout much of the genome but differing in large regions of Chromosomes 11, 12, 13, and in small regions of a few other Chromosomes. Because these two strains are "near congenics" a nomenclature change has been made to update AXB14/PgnJ to AXB13a/PgnJ. In general, "sister" strains (those with suffixes of a or b) should not be used for primary screening/QTL mapping. However, if a QTL is located in a region of difference in a sister recombinant inbred then this strain can serve as a "near congenic" for additional analysis.
The strain distribution pattern (SDP) for the AXB RI strains is available through the Mouse Genome Informatics
Contributed Data Sets and Gene Network.
Additional tools and information are presented through the Mouse Phenome Database
Specialized Strain Panel Query Form, and
Gene Network .
The AXB and BXA recombinant inbred (RI) set of strains were originally generated and maintained at the University of California, San Diego, and have been imported into The Jackson Laboratory. There were originally 51 AXB and BXA strains derived from the C57BL/6J (Stock No. 000664) and A/J (Stock No. 000646) progenitor strains. Many of the original strains are either extinct or were discarded due to genetic contamination. Please refer to Sampson et al., 1998 for more information.
|Gene Symbol and Name||Nrg3, neuregulin 3|
|Strain of Origin||A/J|
|Molecular Note||This allele maps to an interval between the microsatellite markers D14Mit14 and D14Mit80 located at 10.0 cM and 13.5 cM. The mutation identified is a microsatellite repeat within intron 7 of the gene. This simple sequence repeat (SSR) was found to completely cosegregate with the ska phenotype.|