SAMPLING VARIANCES OF HETEROZYGOSITY AND GENETIC DISTANCE
نویسندگان
چکیده
منابع مشابه
Sampling Variances of Heterozygosity and Genetic Distance1
Mathematical formulae for the sampling variances of average heterozygosity and NEI'S genetic distance are developed. These sampling variances are decomposed into their two components, i.e. the inter-locus and intra-locus variances. The relationship between the number of loci and the number of individuals per locus to be examined for estimating average heterozygosity and genetic distance is also...
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NEI and ROYCHOUNHARY have developed an inequality relationship between the expected values of (j-x - g)-2 and (ĝ - g)-2 where j-x is a biased and g is an unbiased estimate of population homozygosity g. Their inequality is somewhat weak and can be improved, as is demonstrated in this paper.
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In the mid-1960s protein electrophoresis revolutionized the study of population genetics and evolution. This technique revealed an extensive amount of genetic polymorphism existing in natural populations and, at the same time, provided a powerful tool to examine the evolutionary relationships of closely related species.1’2 In 1972 I developed a statistical method by which one can measure the ge...
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A data set of 1572 heritability estimates and 1015 pairs of genetic and phenotypic correlation estimates, constructed from a survey of published beef cattle genetic parameter estimates, provided a rare opportunity to study realized sampling variances of genetic parameter estimates. The distribution of both heritability estimates and genetic correlation estimates, when plotted against estimated ...
متن کاملRunning head : Approximate REML sampling variances Approximation of Sampling Variances and Confidence Intervals for Maximum Likelihood Estimates of Variance Components
After reviewing pertinent literature on the estimation of sampling variances and confidence intervals in the maximum likelihood framework, a method to approximate these for individual parameters in a multi-parameter analysis is described. It is based on the profile likelihood, defined as the likelihood for a subset of parameter(s) of interest with the remaining parameters equal to their maximum...
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ژورنال
عنوان ژورنال: Genetics
سال: 1974
ISSN: 1943-2631
DOI: 10.1093/genetics/76.2.379