Fig. 1

Rapid amplification of MITE families at different times. a Unimodal distribution of pairwise nucleotide diversity in some MITE families with full-length elements, implying only one amplification event occurred. Only three families are displayed. b Bimodal distribution, implying more than one amplification event occurred. Only two families are displayed. c Phylogenetic tree of the MnT80 MITE family (with a unimodal distribution of pairwise nucleotide diversity). The star-shaped tree implies one amplification event occurred. d The phylogenetic tree of the Mnh5 MITE family (with a bimodal distribution of pairwise nucleotide diversity) includes two well-supported clades