Figure 2. Filtering statistics, classification, and coding potential screening of the lncRNAs.

(A) Statistics for the number of transcripts remaining during the filtering process (step 1 to 5). (B) The classifications are shown as eight types. = for complete match of intron chain; c for contained; j for potentially novel isoform; i for a transfrag falling entirely within a reference intron; o for generic exonic overlap with a reference transcript; u for unknown, intergenic transcript; x for exonic overlap with reference on the opposite strand; s for intron of the transfrag overlaps a reference intron on the opposite strand. (C) Coding potential was analyzed using four methods.