@article{cockerham_zeng_comstock_robinson_stuber_1996, title={Design III with marker loci}, volume={143}, number={3}, journal={Genetics}, author={Cockerham, C. C. and Zeng, Z.-B. and Comstock, R. E. and Robinson, H. F. and Stuber, C. W.}, year={1996}, pages={1437} }
@article{cockerham_1994, title={FURTHER OBSERVATIONS ON THE EVOLUTION OF ADDITIVE GENETIC-VARIATION WITH MUTATION}, volume={45}, ISSN={["0040-5809"]}, DOI={10.1006/tpbi.1994.1005}, abstractNote={Two mutation models, LH by Lynch and Hill and CT by Cockerham and Tachida, utilized for a neutral quantitative character caused by genes with additive effects undergoing mutation and drift, were compared for the genetic variances within, sigma w2, and between sigma b2, replicate small populations initiated from an almost fixed founder population. The two models give results that are very similar for sigma w2 and it is only after a very long time (too long for experimental verification) that they can be distinguished for sigma b2. The CT model also accommodates small replicate populations initiated from a very large equilibrium founder population. This provides information on the additive variance in the large equilibrium population. Results from both types of founder populations provide information on the average mutation rate. Formulations for monoecy for the CT model are shown to be satisfactory for separate sexes with the substitution of the appropriate effective population size.}, number={1}, journal={THEORETICAL POPULATION BIOLOGY}, author={COCKERHAM, CC}, year={1994}, month={Feb}, pages={92–100} }
@article{cockerham_weir_1993, title={Estimation of gene flow from F-statistics}, volume={47}, DOI={10.2307/2410189}, number={3}, journal={Evolution}, author={Cockerham, C. C. and Weir, B. S.}, year={1993}, pages={855} }
@article{cockerham_weir_1986, title={ESTIMATION OF INBREEDING PARAMETERS IN STRATIFIED POPULATIONS}, volume={50}, ISSN={["0003-4800"]}, DOI={10.1111/j.1469-1809.1986.tb01048.x}, abstractNote={A clarification is given of the differences in approaches to the estimation of F-statistics of Nei & Chesser [Ann. Hum. Genet. (1983) 47, 253-259] and Cockerham [Genetics (1973) 74, 679-700]. The principal difference is that Nei & Chesser define quantities with respect to fixed extant populations, while Cockerham allows for evolutionary variation between populations. Weighted and unweighted analyses are compared, and a numerical example given.}, journal={ANNALS OF HUMAN GENETICS}, author={COCKERHAM, CC and WEIR, BS}, year={1986}, month={Jul}, pages={271–281} }
@article{cockerham_tachida_1986, title={LINKAGE DISEQUILIBRIA IN FINITE POPULATIONS}, volume={29}, ISSN={["0040-5809"]}, DOI={10.1016/0040-5809(86)90012-2}, abstractNote={Four-locus recombination frequencies are summarized into two-locus pair frequencies and three-locus frequencies, and further, into two-locus frequencies such that higher-order frequencies are linear functions of lower-order frequencies. Frequencies of gene combinations are defined according to their position on the same or distinct gametes, and linear functions of these provide the measures of linkage disequilibria. These concepts are utilized to derive the transitional behavior of the gene combinations frequencies and the linkage disequilibria in a finite monoecious population with random union of gametes for up to four loci. The transitions of lower-order disequilibria in a higher-order (more loci) setting involve the higher-order disequilibria which must be taken into account in arriving at the final (fixation) frequencies. The methods allow different initial conditions. Since corresponding data functions of the gene combination frequencies provide unbiased estimates of the parameters, estimators follow naturally.}, number={3}, journal={THEORETICAL POPULATION BIOLOGY}, author={COCKERHAM, CC and TACHIDA, H}, year={1986}, month={Jun}, pages={293–311} }
@article{cockerham_weir_1983, title={Linkage between a marker locus and a quantitative trait of sibs}, volume={35}, number={2}, journal={American Journal of Human Genetics}, author={Cockerham, C. C. and Weir, B. S.}, year={1983}, pages={263} }
@article{cockerham_weir_1983, title={VARIANCE OF ACTUAL INBREEDING}, volume={23}, ISSN={["1096-0325"]}, DOI={10.1016/0040-5809(83)90006-0}, abstractNote={The variances of actual inbreeding and coancestry in terms of their corresponding identities by descent were studied for finite populations. For inbreeding at a single locus, the total variance σ2 = F(1 − F) (F is the inbreeding coefficient) is comprised of a component σw2 within populations and a component σb2 between replicate populations. These variances increase in time to a maximum at about 1.1Ne generations for σw2, about 2.3Ne generations for σb2, and about 1.4Ne generations for σ2, and decrease thereafter (Ne is effective population size). The ratio σb2σ2 is ever increasing to an asymptote in the range 0.4-0.5 depending on Ne and the mating system. For finite populations with variation in pedigree F's, there are contributions σwF2 within and σbF2 between populations. The component σbF2 is insignificant except for very small populations, and σwF2 is largest in the early generations and then decreases roughly as (1 − F)2KNe where K is formulated in terms of the mating strategy and the degree of avoidance of mating relatives. An additional degree of avoidance increases K by a factor of 4. In a large population at equilibrium with respect to mixed self and random mating, σwF2 accounts for onehalf to two-thirds of σw2. Bringing in more loci leads to the decomposition of the total variance into four components whose values are affected by linkages among the loci. The relationships between these components and σw2, σb2, σwF2, and σbF2, are elaborated in terms of tight and loose linkage. The exact computations of σwF2 and σbF2 require the use of two locus descent measures without linkage. The variances of various averages of actual identities by descent, such as the proportions for individuals or populations, are formulated for a sample of individuals.}, number={1}, journal={THEORETICAL POPULATION BIOLOGY}, author={COCKERHAM, CC and WEIR, BS}, year={1983}, pages={85–109} }
@article{cockerham_weir_1977, title={DIGENIC DESCENT MEASURES FOR FINITE POPULATIONS}, volume={30}, ISSN={["1469-5073"]}, DOI={10.1017/S0016672300017547}, abstractNote={SUMMARY The development of a set of two-locus descent measures is reviewed. The three digenic measures, inbreeding coefficient and parental and recombinant descent coefficients, are considered in detail. The derivations of these three in pedigrees, fixed mating systems, and random mating in monoecious or dioecious populations are given. General expressions for digenic frequencies and disequilibria functions at any time are found by applying the three digenic descent measures to two types of initial populations. The final or equilibrium status of the population is also given. As the inbreeding coefficient is the same as the recombinant descent coefficient in the case of complete linkage, avoidance or promotion of early inbreeding has similar effects on the two coefficients. Estimable components of linkage disequilibrium and other measures of association within and among populations are elaborated.}, number={2}, journal={GENETICS RESEARCH}, author={COCKERHAM, CC and WEIR, BS}, year={1977}, pages={121–147} }
@article{cockerham_1976, title={Number of heterozygotes left by neutral genes}, ISBN={0123985609}, journal={Population genetics and ecology}, publisher={New York: Academic Press}, author={Cockerham, C. C.}, year={1976}, pages={527} }
@article{cockerham_1973, title={Analyses of gene frequencies of mates}, volume={74}, number={4}, journal={Genetics}, author={Cockerham, C. C.}, year={1973}, pages={701} }