random genetic drift
Random Genetic Drift and Gamete Frequency
... A remains polymorphic is meaningful. The behavior is significantly different from the monotonic decrease in the deterministic model without random genetic drift. After 4N generations, the conditional ...
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Influence of Random Genetic Drift on Human Immunodeficiency Virus Type 1 env Evolution During Chronic Infection
... size for a haploid organism, and is the mutation rate per In this study, we explored the related issues of the generation per site with L sites. Under the same assumptions, viral effective population size and the roles ...
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Complete Numerical Solution of the Diffusion Equation of Random Genetic Drift
... for random genetic drift has been in existence for a considerable period of ...of random genetic drift in genetics and related subjects, wherever the diffusion equation ...
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Multinomial-Sampling Models for Random Genetic Drift
... Here, we extend our investigation of a monoecious population to a dioecious one. First, we shall deduce our model from population regulation and establish that it ne[r] ...
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LINKAGE DISEQUILIBRIUM AT STEADY STATE DETERMINED BY RANDOM GENETIC DRIFT AND RECURRENT MUTATION
... In the present paper we intend to present a theoretical foundation for the treat- ment of linkage disequilibrium at steady state determined by random drift and mutation (or more ge[r] ...
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Evolutionary Branching in a Finite Population: Deterministic Branching vs. Stochastic Branching
... (random genetic drift) on evolutionary ...of random genetic drift on the evolutionary outcome most ...that genetic drift is espe- cially important when the ...
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Beads and Dice in a Genetic Drift Exercise
... by random genetic ...make genetic drift more intuitive among ...simulate drift and selection jointly affecting the fate of the genetic variants in an evolving ...because ...
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Evolution of Recombination Due to Random Drift
... the random appearance of must consider the dynamics of disequilibrium generated mutations on particular genetic backgrounds, but also by random genetic drift over the entire time course ...
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Conservation of genetic uniqueness of populations may increase extinction likelihood of endangered species: the case of Australian mammals
... neutral genetic diversity and genetic divergence, and that random genetic drift is likely to be driving this ...where genetic data exists, over 73 % had the same significant ...
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X-Linked Genes Evolve Higher Codon Bias in Drosophila and Caenorhabditis
... mutation, random genetic drift, and na- tural selection (S harp and L i 1986; B ulmer 1991; A kashi and S chaeffer 1997; M c V ean and C harlesworth 1999), differences in the population ...
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Mitochondrial and allozyme genetics of incipient speciation in a landlocked population of Galaxias truttaceus (Pisces: Galaxiidae).
... In the short time (3000-7000 years) that the lake fish have been landlocked, random genetic drift in a finite, stable-sized population was probably not responsible for the lack[r] ...
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The Genetics of Adaptation: The Roles of Pleiotropy, Stabilizing Selection and Drift in Shaping the Distribution of Bidirectional Fixed Mutational Effects
... Pleiotropy allows for the deterministic fixation of bidirectional mutations: mutations with effects both in the direction of selection and opposite to selection for the same character. Mutations with deleterious effects ...
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LINKAGE DISEQUILIBRIUM IN ISOLATED POPULATIONS OF DROSOPHILA MELANOGASTER
... In order to test the interaction effect of overdominance and random genetic drift on the formation of linkage disequilibria under the condition of multi- plicative gene[r] ...
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Population Growth Enhances the Mean Fixation Time of Neutral Mutations and the Persistence of Neutral Variation
... Consider an unlinked neutral locus within the genome of a randomly mating diploid population with discrete gen- erations. We assume the population-size changes over time, such that in generation t there are N(t) adults. ...
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Speciation in a Late Cretaceous lineage of Veenia (Ostracoda)
... It is also shown that the morphological changes could have been caused by random genetic drift in demes of normal size for ostracods, in the absence of selection... Spcciati[r] ...
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LIMITS OF ADAPTATION: THE EVOLUTION OF SELECTIVE NEUTRALITY
... Thus, we deduce that evolution by means of the random genetic drift of neutral or nearly neutral mutations is not only con- sistent with the Darwinian theory of nat[r] ...
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Forecasting an ARIMA (0,2,1) using the random walk model with drift
... A large literature has been recently developed for analyzing TS regression with difference stationary processes. Dickey (1976) and Dickey and Fuller (1976, 1981) in their seminal papers examined the OLS estimation when ...
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Effects of Genetic Drift and Gene Flow on the Selective Maintenance of Genetic Variation
... power of such explanations, however, has been augmented by the realization that selectively maintained polymorphisms may build up over time, accumulating rare beneficial muta- tions (Spencer and Marks 1993). By bombarding ...
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GENETIC DRIFT AND ESTIMATION OF EFFECTIVE POPULATION SIZE
... The accuracy of the formulae depends on the ratio of sample size t o effective size, the number of generations involved ( t ) , and the number of loci or alleles used. I t is [r] ...
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GENETIC DIFFERENTIATION OF TRANSPOSABLE ELEMENTS UNDER MUTATION AND UNBIASED GENE CONVERSION
... A model is developed to predict the extent of genetic differentiation in a family of transposable elements under the combined effects of genetic drift, transposit[r] ...
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