Fig. 4

Functional prediction of lncRNAs by co-position and co-expression. a Genomic positions of lncRNAs (including both TAIR10 and novel lncRNAs) from six clusters. Differentially expressed lncRNAs were mainly antisense lncRNAs. b Functional predictions of lncRNAs of cluster 3 via co-localization and co-expression. Protein-coding genes that were antisense to lncRNAs of cluster 3 were enriched in GO terms related to cell wall organization, which was consistent with the enriched functions of protein-coding genes from cluster 3. c GO of protein-coding genes from six clusters. Protein-coding genes were enriched in many Pi starvation responsive biological processes, such as photosynthesis, morphology change, root cell differentiation, phosphate transport, and hormone response