Table 1 Parameters of the model

N

Number of individuals in the population

Z

Probability to reproduce by self-fertilization

w

Fitness of an individual

n

Number of TE copies in the genome

s _i

Effect of insertion i on fitness

μ _s

Average effect of TE insertions on fitness

σ _s

Standard deviation of the effect on fitness

P _{s > 0}

Proportion of TE insertions that improve the fitness

u

Replicative transposition rate

v

Deletion rate

a _i

Activity of a copy i (ability to produce the transposition machinery)

m

Mutation rate (toward a less active copy)

σ _m

Standard deviation of the effect of a mutation on activity