منابع مشابه
Testing linkage disequilibrium in sibships.
We describe the use of multivariate regression for testing allelic association in the presence of linkage, using marker genotype data from sibships. The test is valid, provided that the correct mean structure is modeled but does not require the correlation structure within families to be specified. The test can be implemented using standard statistical software such as the SAS programming langu...
متن کاملLinkage disequilibrium testing when linkage phase is unknown.
Linkage disequilibrium, the nonrandom association of alleles from different loci, can provide valuable information on the structure of haplotypes in the human genome and is often the basis for evaluating the association of genomic variation with human traits among unrelated subjects. But, linkage phase of genetic markers measured on unrelated subjects is typically unknown, and so measurement of...
متن کاملThe Pattern of Linkage Disequilibrium in Livestock Genome
Linkage disequilibrium (LD) is bases of genomic selection, genomic marker imputation, marker assisted selection (MAS), quantitative trait loci (QTL) mapping, parentage testing and whole genome association studies. The Particular alleles at closed loci have a tendency to be co-inherited. In linked loci this pattern leads to association between alleles in population which is known as LD. Two metr...
متن کاملTesting for linkage disequilibrium using SAS/GENETICS and SAS/STAT
Testing for the presence of linkage disequilibrium (LD) and measuring its value is important in statistical genetics. LD deals with the correlation of genetic variation at two or more loci in the genome within a given population. PROC ALLELE in SAS/GENETICS provides a variety of pair-wise LD measures that are related to the well-known Pearson correlation r. Different statistical tests of linkag...
متن کاملTesting Hypotheses about Linkage Disequilibrium with Multiple Alleles.
For loci with multiple alleles, hypotheses about linkage disequilibrium may be tested on the complete set of gametic data, or on various collapsed sets of data. Collapsing data into a few alleles at each locus can change the power of the tests, as implied in a recent paper by Zouros, Golding and Mackay (1977). We show that the nature of such changes can be found from properties of the noncentra...
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ژورنال
عنوان ژورنال: The American Journal of Human Genetics
سال: 2000
ISSN: 0002-9297
DOI: 10.1086/302973