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- PMID: 12141782
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Article: Estimation of sib-pair IBD sharing and multipoint polymorphism information content by linear regression
Title | Estimation of sib-pair IBD sharing and multipoint polymorphism information content by linear regression |
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Authors | |
Keywords | MPIC Multipoint IBD-sharing Polymorphism information content |
Issue Date | 2002 |
Publisher | Springer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0001-8244 |
Citation | Behavior Genetics, 2002, v. 32 n. 3, p. 211-220 How to Cite? |
Abstract | A simple method of estimating IBD sharing (τ) of sibling pairs from multipoint genotype data based on linear regression is presented. The new method is an extension of that developed by Fulker, Cherny, and Cardon (1995) and involves a measure of sib-pair specific information, W, defined as the difference between the unconditional variance of τ and the conditional variance of τ given the marker genotype data. When markers are not fully informative, the W method provides estimates closer to those obtained from the exact hidden Markov method (HMM) than the original Fulker method. Using W, we also derive a generalisation for the polymorphism information content (PIC) for multiple markers. This multipoint polymorphism information content (MPIC) can be evaluated at any location along a marker map and is proportional to the noncentrality parameter for linkage. We illustrate MPIC by assessing the relative information content of single nucleotide polymorphism (SNP) and microsatellite markers. |
Persistent Identifier | http://hdl.handle.net/10722/175861 |
ISSN | 2023 Impact Factor: 2.6 2023 SCImago Journal Rankings: 1.092 |
ISI Accession Number ID | |
References |
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Rijsdijk, FV | en_US |
dc.contributor.author | Sham, PC | en_US |
dc.date.accessioned | 2012-11-26T09:01:52Z | - |
dc.date.available | 2012-11-26T09:01:52Z | - |
dc.date.issued | 2002 | en_US |
dc.identifier.citation | Behavior Genetics, 2002, v. 32 n. 3, p. 211-220 | en_US |
dc.identifier.issn | 0001-8244 | en_US |
dc.identifier.uri | http://hdl.handle.net/10722/175861 | - |
dc.description.abstract | A simple method of estimating IBD sharing (τ) of sibling pairs from multipoint genotype data based on linear regression is presented. The new method is an extension of that developed by Fulker, Cherny, and Cardon (1995) and involves a measure of sib-pair specific information, W, defined as the difference between the unconditional variance of τ and the conditional variance of τ given the marker genotype data. When markers are not fully informative, the W method provides estimates closer to those obtained from the exact hidden Markov method (HMM) than the original Fulker method. Using W, we also derive a generalisation for the polymorphism information content (PIC) for multiple markers. This multipoint polymorphism information content (MPIC) can be evaluated at any location along a marker map and is proportional to the noncentrality parameter for linkage. We illustrate MPIC by assessing the relative information content of single nucleotide polymorphism (SNP) and microsatellite markers. | en_US |
dc.language | eng | en_US |
dc.publisher | Springer New York LLC. The Journal's web site is located at http://springerlink.metapress.com/openurl.asp?genre=journal&issn=0001-8244 | en_US |
dc.relation.ispartof | Behavior Genetics | en_US |
dc.subject | MPIC | - |
dc.subject | Multipoint IBD-sharing | - |
dc.subject | Polymorphism information content | - |
dc.subject.mesh | Alleles | en_US |
dc.subject.mesh | Chromosome Mapping | en_US |
dc.subject.mesh | Gene Frequency - Genetics | en_US |
dc.subject.mesh | Genetic Markers - Genetics | en_US |
dc.subject.mesh | Genotype | en_US |
dc.subject.mesh | Humans | en_US |
dc.subject.mesh | Markov Chains | en_US |
dc.subject.mesh | Models, Genetic | en_US |
dc.subject.mesh | Nuclear Family | en_US |
dc.subject.mesh | Polymorphism, Genetic - Genetics | en_US |
dc.subject.mesh | Quantitative Trait, Heritable | en_US |
dc.subject.mesh | Regression Analysis | en_US |
dc.title | Estimation of sib-pair IBD sharing and multipoint polymorphism information content by linear regression | en_US |
dc.type | Article | en_US |
dc.identifier.email | Sham, PC: pcsham@hku.hk | en_US |
dc.identifier.authority | Sham, PC=rp00459 | en_US |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.doi | 10.1023/A:1016073113019 | en_US |
dc.identifier.pmid | 12141782 | - |
dc.identifier.scopus | eid_2-s2.0-0036318070 | en_US |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0036318070&selection=ref&src=s&origin=recordpage | en_US |
dc.identifier.volume | 32 | en_US |
dc.identifier.issue | 3 | en_US |
dc.identifier.spage | 211 | en_US |
dc.identifier.epage | 220 | en_US |
dc.identifier.isi | WOS:000176389000005 | - |
dc.publisher.place | United States | en_US |
dc.identifier.scopusauthorid | Rijsdijk, FV=6701830835 | en_US |
dc.identifier.scopusauthorid | Sham, PC=34573429300 | en_US |
dc.identifier.citeulike | 2496839 | - |
dc.identifier.issnl | 0001-8244 | - |