Fig. 2
From: Bridging the gap between reference and real transcriptomes
The sources of transcript diversity shown on a typical eukaryotic gene. Genetic: 1 single nucleotide variation or short indel, 2 microsatellite variation, 3 transposition, 4 gene fusion. Transcriptional: 5 bidirectional transcription start site (TSS), 6 antisense transcript, 7 enhancer RNA, 8 alternative TSS. Post-transcriptional: 9 alternative 5′ splice site (SS), 10 alternative 3′ SS, 11 alternative 3′ SS, 12 skipped exon, 13 alternative poly(A) site, 14 editing and modification, 15 processed pre mi/snoRNA, 16 circular RNA