Fig. 1

Predicted lncRNA features. a LncRNA prediction with a user-defined lncRNA specificity/sensitivity cut-off according to the two ROC curve graph provided by FEELnc. b Expression distribution within the three classes (new lncRNAs, ambiguous RNAs and new mRNAs) compared to that of known protein-coding genes from Ensembl. c Structural features for lncRNAs and Ensembl protein-coding RNAs in three species (G = Gallus gallus, M = Mus musculus, H = Homo sapiens). For the chicken lncRNAs, the data were generated in this study, while for the human and mouse lncRNAs, the data are taken from Ensembl V83. d Number of genes considered as expressed (FPKM-UQ ≥ 0.1) (y-axis) according to the number of biological replicates (x-axis) in the liver (left) and adipose tissue (right) for lncRNAs and Ensembl protein-coding genes. On each plot are indicated the number of genes for which at least 10 samples have a FPKM-UQ ≥ 0.1 (right number) and the number of genes for which a maximum of four samples have a FPKM-UQ ≥ 0.1 (left number). e Classification by FEELnc of the 1670 reliable lncRNA genes for 2412 transcripts