Fig. 2

Identification and characterization of long non-coding RNAs (lncRNAs) in walnut. a Bioinformatic pipeline for the identification of lncRNAs in walnut. Each step is described in detail in the Materials and Methods section. b Proportion of transcripts corresponding to lncRNAs. c Patterns of gene expression represented by principal component analysis (PCA) plots of normalized count matrices for walnut fruit bracts