Natural Selection & Genetic Drift in Finite Populations

Theory of Selective Neutrality: the Neutral Equation

Trajectory of a neutral allele

Replicate trajectories of rare neutral alleles
from f(B) = 0.01

Replicate trajectories of neutral alleles from f(B) = 0.50 ]

Fixation of a rare advantageous allele, with variable s with respect to N [NS 08-04]

Fate of a single novel allele (N = 100, 2N = 200 alleles, q0 = 0.005) when allele is
   
strongly advantageous   (s = -0.100)
 

    weakly advantageous      (s = -0.010
    weakly deleterious           (s = 0.010)  
   
strongly deleterious        (s =  0.100

Selective Sweep without recombination [NS_08-10a]
                                       with "Hitchhiking" [NS 08-11]


NS figures after © 2013 by Nielsen & Slatkin; Text material © 2024 by Steven M Carr