Abstract
A simple extension of the DeFries and Fulker multiple regression model for twin analysis is applied to the problem of detecting linkage in a quantitative trait. The method, employing sib pairs, is based on that of Haseman and Elston. Reading data from 19 extended pedigrees were analyzed employing RLFPs as markers on chromosome 15 and using the widely available statistical applications software package, SAS. A number of possible linkages were detected, indicating that this approach is both powerful and effective, especially in the case of selected samples. Detecting genotype-environment interaction and the issue of power are briefly discussed. The programs used are available upon request.
Original language | English (US) |
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Pages (from-to) | 299-313 |
Number of pages | 15 |
Journal | Reading and Writing |
Volume | 3 |
Issue number | 3-4 |
DOIs | |
State | Published - Dec 1991 |
Keywords
- linkage analysis
- multiple regression
- quantitative trait loci
- reading disability
- sib-pair data
ASJC Scopus subject areas
- Neuropsychology and Physiological Psychology
- Education
- Linguistics and Language
- Speech and Hearing