Phylogenetic analysis of variants in HBa0007F24 sequence. Neighbor-Joining tree obtained for 18S rDNA (A), 25S rDNA (B) and LTRs of TRRT(C). Fragmented 18S rDNA and 25S rDNA in HBa0007F24 put together deleting the inserts (18S joins, 25S joins). Comparison of phylogenetic distance of 13 LTR pairs of 7 retrotransposons shows that LTR pair of each retrotransposon is not clustered together implying that the retrotransposons was duplicated rather than transposition for LTR retrotransposon amplification. Opposite position LTRs (RT5 LTR 3': RT5 LTR 5' or RT6 LTR 3': RT6 LTR 5') of TRRT5 or TRRT6 have the most divergent sequence, but the same position LTR (RT5 LTR 3': RT6 LTR 3' or RT6 LTR 5': RT5 LTR 5') of TRRT5 and TRRT6 are closely clustered.