منابع مشابه
Evolution in Mendelian Populations.
Theories of evolution . Variation of gene frequency . Simple Mendelian equilibrium . Mutation pressure . Migration pressure . Selection pressure . Equilibrium under selection . Multiple allelomorphs . Random variation of gene frequency . Rate of decrease in heterozygosis . The population number . The distribution of gene frequencies and its immediate consequences . No mutation, migration or sel...
متن کاملEvolution and extinction of transposable elements in Mendelian populations.
A model of the evolution of a transposable element family in a Mendelian host population is proposed that incorporates heritable phenotypic mutations in the elements. The temporal behavior of the numbers of mutant and wild-type elements is studied, and the expected extinction time of the transposable element family is examined. Our results indicate that, if the mutant can be transposed equally ...
متن کاملSewall Wright on Evolution in Mendelian Populations and the "Shifting Balance".
After the rediscovery of Mendel’s work in 1900, bitter disputes erupted between the first geneticists and the biometricians who studied quantitative traits. How could the discrete genes of the geneticists explain the continuous variation observed by biometricians? And could natural selection shape variation in these genes? Eventually, the two camps came to understand that quantitative variation...
متن کاملNon-Mendelian Phenomena in Allopolyploid Genome Evolution
Perhaps all flowering plants have experienced one or more episodes of polyploidization at some time in their evolutionary history. Recent evidence indicates that this genome doubling may be accompanied by a variety of nonMendelian phenomena, some of which operate during hybridization and polyploid formation while others manifest more gradually on an evolutionary timescale. Here we review these ...
متن کاملEvolutionarily Stable Strategies and Viability Selection in Mendelian Populations
For various genetical structures, including haploid and diploid. one-locus IIalleles, and n-locus additive viability random mating models, natural selection resulting from intrapopulation conflicts between random individuals leads to exactly those genetical equilibria which determine a mixture of strategies evolutionarily stable according to the game theory definition of Maynard Smith and Price...
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ژورنال
عنوان ژورنال: Genetics
سال: 1931
ISSN: 1943-2631
DOI: 10.1093/genetics/16.3.290