Phylogenetic relationship between Zebulon and the nematode site-specific retrotransposon NeSL-1. Phylogeny was performed using together the reverse transcriptase and REL domains (Burke et al. 2002). The tree (neighbor-joining) is unrooted. Branches with <50% support have been collapsed. Bootstrap values using neighbor-joining (1000 replicates, first values) and maximum parsimony analyses (100 replicates, third values), as well as reliability values for maximum likelihood analysis (quartet puzzling, 10,000 puzzling steps, second values) are given. Accession numbers are the same as in Malik et al. (1999) and Burke et al. (2002).
