Phylogenetic relationships between the CsRn1 -clade members and the other Ty3/gypsy -like retrotransposons. The analysis was performed with a concatenate of reverse transcriptase, RNase H, and Zn finger and DDE domains of integrase, using the maximum likelihood method of TREE_PUZZLE. The tree was rooted with Ty4 and Copia. Quartet supporting values are presented at each of the branching points. Elements characterized in this study are distinguished by the boldface letters. The symbols (*, †) found at the ends of element names indicate those with a single and two separated open reading frames, respectively. The tree in box was similarly obtained with the Gag sequences of CsRn1-like elements.