Fig. 1From: Systematic survey of plant LTR-retrotransposons elucidates phylogenetic relationships of their polyprotein domains and provides a reference for element classificationa-b Plots of pairwise genetic distances calculated from multiple sequence alignments of individual protein domains of Ty1/copia (a) and Ty3/gypsy (b) elements. Note that individual polyprotein domains differ considerably in their divergence and that the genetic distances of INT, RT and RH domains in Ty3/gypsy elements have bimodal distributions. The genetic distances were calculated in the program SeaView using observed distance analysis [97]Back to article page