期刊名称：Proceedings of the National Academy of Sciences
印刷版ISSN：0027-8424
电子版ISSN：1091-6490
出版年度：1986
卷号：83
期号：5
页码：1423-1427
DOI：10.1073/pnas.83.5.1423
语种：English
出版社：The National Academy of Sciences of the United States of America
摘要：Recombinant inbred (RI) mouse strains are extremely useful for gene mapping, especially for establishing preliminary map positions for new loci. However, the usual statistical analysis applied to such experiments may lead to erroneous conclusions about linkage unless unusually stringent criteria are adopted for rejecting the null hypothesis. We describe a Bayesian statistical approach for determining the probability of linkage when no prior information is available about the location of the gene to be mapped (the test locus). We present a table that gives the probability of linkage, the most likely position of the test locus with respect to a marker locus, and the interval around the marker locus that has a 95% chance of containing the test locus, for all possible experimental results suggesting linkage in sets of up to 40 RI strains. These results show that for the probability of linkage to be greater than 95%, the number of RI strains inheriting chromosomes recombinant for the test and marker loci must be smaller than previously assumed. The formulas derived for RI strains can be applied, with only minor modifications, to the analysis of Mendelian backcrosses. Differences between the Bayesian approach advocated here and the more traditional analysis of linkage are discussed in detail.
