Woods, LCS;
Mott, R;
(2017)
Heterogeneous Stock Populations for Analysis of Complex Traits.
In: Schughart, K and Williams, RW, (eds.)
Systems Genetics: Methods and Protocols.
(pp. 31-44).
Humana Press: New York, NY, USA.
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Abstract
Heterogeneous Stock (HS) populations allow for fine-resolution genetic mapping of a variety of complex traits. HS mice and rats were created from breeding together eight inbred strains, followed by maintaining the colony in a manner that minimizes inbreeding. After 50 or more generations of breeding, the resulting animals' chromosomes represent a genetic mosaic of the founders' haplotypes, with the average distance between recombination events in the centiMorgan range. This allows for genetic mapping to only a few Mb, a much smaller region than what can be identified using traditional F2 intercross or backcross mapping strategies. HS animals have been used to fine-map a variety of complex traits including anxiety and fear behaviors, diabetes, asthma, and heart disease, among others. Once a quantitative trait locus (QTL) has been identified, founder sequence and expression analysis can be used to identify underlying causal genes. In the following review, we provide an overview of how HS rats and mice have been used to identify genetic loci, and in some cases the causal genes, underlying complex traits. We discuss the creation and breeding strategies for both HS rats and mice. We then discuss the statistical analyses used to identify genetic loci, as well as strategies to identify causal genes underlying these loci. We end the chapter by discussing limitations faced when using HS populations, including several statistical challenges that have not been fully resolved.
| Type: | Book chapter |
|---|---|
| Title: | Heterogeneous Stock Populations for Analysis of Complex Traits |
| ISBN-13: | 978-1-4939-6425-3 |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1007/978-1-4939-6427-7_2 |
| Publisher version: | https://doi.org/10.1007/978-1-4939-6427-7_2 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Expression analysis, Genetic mapping, Outbred mice and rats, Resources for systems genetics, Animals, Breeding, Chromosome Mapping, Genetic Association Studies, Genetic Techniques, Genetic Variation, Genetics, Population, Mice, Models, Genetic, Models, Statistical, Quantitative Trait Loci, Rats |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Life Sciences > Div of Biosciences > Genetics, Evolution and Environment |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/10070745 |
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