Fig. 4
From: Multiple and diversified transposon lineages contribute to early and recent bivalve genome evolution
Richness of mollusc class II DDE/D-related transposons and LINEs. A Number of RT-containing LINEs annotated in each analyzed genome (see the “Tree-based classification of ORF-containing LINE elements”) and subdivided by clade following [29] or, when in parenthesis, by the RepeatMasker “type” classification. Clades are grouped by superfamily following Metcalfe and Casane (2014) and rresults from the SupFam tree #2 (Additional files 13, 14, 15, 16, and 17: S7, S8, S9, S10, and S11). “Unknown” refers to elements annotated based on an O. bimaculoides clade found nested in the I superfamily but missing any reference sequence (see Additional file 16: Fig. S10). Note that the L2-2 clade includes Crack, Daphne, L2A, and L2B elements. B Number of ORF-containing DDE/D-related transposons annotated in each analyzed genome and subdivided by superfamily following [31] (see the “ORF-based annotation of RT containing LINEs and Class II DDE/D elements” section)