Fig. 3From: Evidence-based green algal genomics reveals marine diversity and ancestral characteristics of land plantsIntroner Elements (IEs) and intron splice donor features. (a) D-IE1 and D-IE2 contain four and three motif groups, respectively. Minimum and maximum nucleotide stretches intervening between motifs are indicated. (b) CCMP1545 contains a high percentage of GC splice donors in IE containing introns (43.5Â %) as well as regular spliceosomal introns (RSIs, 9.7Â %). Splice donor motifs are shown for GT and GC motifs in both RSIs and IEs (motifs generated with 500 input sequences each). (c) The motif of the RCC299 ABC-IE (based on 164 ABC-IE containing introns)Back to article page