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Linkage analysis using principal components of gene expression data
| Content Provider | Semantic Scholar |
|---|---|
| Author | Atkinson, Elizabeth J. Fridley, Brooke L. Goode, Ellen L. McDonnell, Shannon K. Liu-Mares, Wen Rabe, Kari G. Sun, Zhifu Slager, Susan L. Andrade, Mariza De |
| Copyright Year | 2007 |
| Abstract | The goal of this paper is to investigate the effect of using principal components as a data reduction method for expression data in linkage analysis. We used 45 probes normalized using the Affymetrix Global Scaling that had evidence of high heritability to estimate the first 10 principal components (PC). A genome-wide linkage scan was performed on the 45 expression values and the 10 PCs using 2272 single-nucleotide polymorphisms. Our conclusions were: 1) PC analyses under-performed the single-probe analysis for known signals; 2) the PC that best reproduced the single-probe analysis was primarily composed of that probe; 3) no new signals were detected in the PC analysis; 4) no new pleiotropic effects were detected in the PC analysis. |
| Starting Page | S79 |
| Ending Page | S79 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| PubMed reference number | 18466581 |
| Volume Number | 1 |
| Journal | BMC proceedings |
| Alternate Webpage(s) | http://bmcproc.biomedcentral.com/track/pdf/10.1186/1753-6561-1-S1-S79?site=bmcproc.biomedcentral.com |
| Alternate Webpage(s) | http://ftp.ncbi.nlm.nih.gov/pub/pmc/04/82/1753-6561-1-S1-S79.PMC2367556.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Affymetrix Gene Expression Genetic Polymorphism Nucleotides Principal Component Analysis genetic linkage |
| Content Type | Text |
| Resource Type | Article |
