||Nematode Caenorhabditis elegans
||Simonsen KT, Moerman DG, Naus CC. Gap junctions in C. elegans. Front Physiol. 2014 Feb 11 5 :40 doi: 10.3389/fphys.2014.00040 p.2 left column top paragraphPubMed ID24575048
||Blumenthal T. Trans-splicing and operons. WormBook. 2005 Jun 25: 1-9 DOI: 10.1895/wormbook.1.5.1PubMed ID18050426
||P.2 left column top paragraph: "In C. elegans, 15% of genes are found in operons, but many operons have been shown to be hybrid operons, meaning that the genes can be co-transcribed as well as being individually transcribed (primary source)."