Journal
GENOME RESEARCH
Volume 20, Issue 12, Pages 1629-1638Publisher
COLD SPRING HARBOR LAB PRESS, PUBLICATIONS DEPT
DOI: 10.1101/gr.101881.109
Keywords
-
Categories
Funding
- Juvenile Diabetes Research Foundation [1-2005-925]
- Cooperative Research Centre for Discovery of Genes for Common Human Diseases
- Australian NHMRC [575552]
- NIH/NIDDK [1R01 DK062882-01A1]
- Melbourne International Research Scholarship
- Australian Postgraduate Awards
- St. Vincent's Institute Foundation
- Peter Doherty Fellowship
- NHMRC [516700]
- Diabetes Research Foundation of Western Australia
- Australia Fellowship
Ask authors/readers for more resources
More than 25 loci have been linked to type 1 diabetes (T1D) in the nonobese diabetic (NOD) mouse, but identification of the underlying genes remains challenging. We describe here the positional cloning of a T1D susceptibility locus, Idd11, located on mouse chromosome 4. Sequence analysis of a series of congenic NOD mouse strains over a critical 6.9-kb interval in these mice and in 25 inbred strains identified several haplotypes, including a unique NOD haplotype, associated with varying levels of T1D susceptibility. Haplotype diversity within this interval between congenic NOD mouse strains was due to a recombination hotspot that generated four crossover breakpoints, including one with a complex conversion tract. The Idd11 haplotype and recombination hotspot are located within a predicted gene of unknown function, which exhibits decreased expression in relevant tissues of NOD mice. Notably, it was the recombination hotspot that aided our mapping of Idd11 and confirms that recombination hotspots can create genetic variation affecting a common polygenic disease. This finding has implications for human genetic association studies, which may be affected by the approximately 33,000 estimated hotspots in the genome.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available