Fig. 4

Comparison of genomic architecture and expression level between mRNAs and lncRNAs. The mRNAs and lncRNAs identified in the present study were used for comparison of primary differences in two classes of transcripts. a Distribution of transcript lengths in the mRNAs and lncRNAs in skin. The horizontal axis of indicates the length of transcripts, and the vertical axis represents density. b Distribution of the number of exons in the mRNAs and lncRNAs. In the present study, single-exon lncRNAs were filtered out from the goat genome due to the limitations of the algorithm. c Distribution of the number of open reading frames (Orfs) in the mRNAs and lncRNAs. The Orf was identified using Estscan in the present study. d Expression level indicated by log₁₀(FPKM + 1) in the mRNAs and lncRNAs. e Proportional distribution of alternative splicing transcripts in mRNAs and lncRNAs. f Conservation of the sequence in mRNAs and lncRNAs were evaluated using phastCons (http://compgen.bscb.cornell.edu/phast/)