Figure 2

Evidence for recombination between mouse L1 families. (A) Schematic structure of an L1 element; (B) Recombinant origin of the Tf families; (C) Independent recombinant origin of the Gf_I and Gf_II families; (D) Evidence for recombination at the ORF2-3’UTR junction; (E) Evidence for the transfer of the coiled coil domain from Mus_II to A_VI, A_VII, F_III, and Gf_II. The numbers in parentheses correspond to the position of the fragments used to build the tree relative to the alignment provided as supplementary material and beginning at position 1 of ORF1.