Identification and characterization of long noncoding RNAs (lncRNAs) in wild-type (WT) and ob/ob mice. (A) Flow chart of novel lncRNAs identification in WT and ob/ob mice. (B) Venn diagram of coding potential analysis by the coding potential calculator (CPC), the Pfam Scan, phylogenetic codon substitution frequency (phyloCSF), and the coding–non-coding index (CNCI). (C) Pie charts of the lncRNA classification, including lincRNA, antisense lncRNA, and intronic lncRNA. (D) Density of transcript exon number. (E) Fragments Per Kilobase of transcript per Million fragments mapped (FPKM) reads distribution of transcripts. (F) Open reading frame (ORF) length of transcripts. iWAT: inguinal white adipose tissue.