Modeling the Amplification Dynamics of Human Alu Retrotransposons
Figure 1
Temporal Variation of Subfamily Sequence Variation π and IPL
Results for three expansion models are shown, in which retrotransposition activity was instantaneous (M0) or lasted for 3 (M3) or 6 (M6) myrs. Variation in π (A) is slowed during retrotransposition, but increases immediately upon the cessation of retrotransposition. Rate of IPL decay (B) is attenuated during retrotransposition activity but increases once retrotransposition ends.