Fig. 5.

Negative correlation in expression between lncRNAs and PC genes across the genome. a Heatmap showing the expression of 313 lncRNAs, which were identified as having 10 or more negatively correlated PC genes across the genome at a cut-off of r < −0.7. Clusters C1 and C2 were highlighted and are specifically repressed or activated in the receptacle. b Top five lncRNAs with the highest number of negatively correlated protein coding genes are shown. Each of the five lncRNAs is connected to its negatively correlated protein–coding genes with lines. The expression pattern of each of the five lncRNAs is marked in (a) by arrows with the same colors. c The opposite expression trend between lncRNA XLOC_001056 (blue line) and its 303 negatively correlated PC genes (black lines). Z-score used in (a) and (c) was obtained from averaged FPKM from two replicates