Coral Epigenetic Network Explorer

Explore predicted regulatory relationships among miRNAs, lncRNAs, mRNAs, DNA methylation, and epigenetic machinery across three reef-building coral species β€” the first described epi-miRNA and ceRNA networks in cnidarians.

Acropora pulchra Porites evermanni Pocillopora tuahiniensis
Read this first. Every interaction shown here is computationally predicted from sequence complementarity (miRanda) and/or expression coexpression (Pearson correlation, n = 5 per species, unadjusted p-values). These are hypothesized regulatory relationships for future experimental testing β€” they are not experimentally validated, and correlation does not establish causation. See Methods & Caveats.

What this study did

The study integrates matched RNA-seq, small RNA-seq, and whole-genome bisulfite sequencing across Acropora pulchra, Porites evermanni, and Pocillopora tuahiniensis to characterize DNA methylation, miRNAs, and lncRNAs and, for the first time in cnidarians, to identify predicted epi-miRNAs (miRNAs targeting epigenetic machinery) and candidate competing endogenous RNA (ceRNA) networks (lncRNAs predicted to sequester miRNAs away from their mRNA targets).

ceRNA sponging is only one of many possible lncRNA functions, and it is the function this site focuses on. Most lncRNAs identified in these corals were not assigned to a ceRNA network β€” only a small fraction met the ceRNA criteria β€” and the biological roles of the remainder are unknown.

3coral species integrated
4miRNAs conserved across all three
66predicted epi-miRNA target pairs
109orthogroups methylated in all three

The regulatory layers

DNA methylation (gene-body biased) ● β—‹ ● β—‹ ● ● lncRNA ceRNA β€œsponge” miRNA mRNA epi- machinery predicted repression epi-miRNA targeting sequesters miRNA

A simplified multilayer view. Node shapes (not colour alone) distinguish molecule types throughout the site: β–³ miRNA, β—‡ lncRNA, β—― mRNA, ⬑ epigenetic machinery. Red bars mark predicted repression; blue arrows mark ceRNA sequestration. The diagram depicts a candidate ceRNA role only; lncRNAs have many other potential functions not shown here, and most lncRNAs in this study were not predicted to act as ceRNAs.

Where to go next

Analysis repository β†— Downloads Full Cytoscape network β†—