Figure 4.
Phylogenetic analysis of 69 transposable elements from P. gallinaceum and P. relictum. For each element, GC-content is shown and clearly distinguishes two clades in P. gallinaceum. Unrooted maximum-likelihood tree based on nucleotides using the GTR+G evolutionary model. Bootstrap values < 70 are not shown. Percentage GC values indicate mean ± variance. P-values were determined based on a simple randomization approach; see Supplemental Methods. (*) P = <0.01, (**) P = <0.0001.
