Figure 4.
Neighbor-Joining phylogenetic tree of an LTR-retrotransposon family based on LTR sequences. LTR sequences were extracted from intact elements, solo LTRs, and truncated elements of Family III, and are indicated by filled squares, filled circles, and triangles, respectively. Numbers adjacent to nodes indicate bootstrap support from 500 replicates. The nucleotide sequence divergence scale is indicated.