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The effective population size (N e) is the size of an idealised population that would experience the same rate of genetic drift as the real population. [1] Idealised populations are those following simple one- locus models that comply with assumptions of the neutral theory of molecular evolution .
It is a measure of the "population mutation rate" (the product of the effective population size and the neutral mutation rate) from the observed nucleotide diversity of a population. θ = 4 N e μ {\displaystyle \theta =4N_{e}\mu } , [ 3 ] where N e {\displaystyle N_{e}} is the effective population size and μ {\displaystyle \mu } is the per ...
To calculate genetic diversity the authors multiply long term effective population size of the females by two, assuming sex ratio 1:1, and then multiply by mitochondrial genes substitution rate, per generation. Making several assumptions according to the sex ratio and number of juveniles, they were able to calculate that in contrast to ...
where u is the mutation rate, and N e is the effective population size. The effective number of alleles n maintained in a population is defined as the inverse of the homozygosity, that is = = + which is a lower bound for the actual number of alleles in the population. If the effective population is large, then a large number of alleles can be ...
Toggle Population Growth Rate subsection. 1.1 Usage. 1.1.1 Examples. 1.2 See also. Toggle the table of contents. Template: Population growth rate/doc. Add languages ...
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Effective number of codons (abbreviated as ENC or Nc) is a measure to study the state of codon usage biases in genes and genomes. [1] The way that ENC is computed has obvious similarities to the computation of effective population size in population genetics . [ 2 ]