In most organisms, the whole genome is maintained throughout the life span. However,
exceptions occur in some species where the genome is reduced during development …

Is spliced-leader (SL) trans-splicing an ancestral eukaryotic characteristic that has been lost
in multiple lineages, or did it arise independently in the various phyla in which it occurs …

Through the analysis of hundreds of full-length cDNAs from fifteen species representing all
major orders of dinoflagellates, we demonstrate that nuclear-encoded mRNAs in all species …

Trans‐splicing is the joining together of portions of two separate pre‐mRNA molecules. The
two distinct categories of spliceosomal trans‐splicing are genic trans‐splicing, which joins …

We report the discovery of mRNA 5′-leader trans-splicing (SL trans-splicing) in the
chordates. In the ascidian protochordate Ciona intestinalis, the mRNAs of at least seven …

Since introns were discovered 26 years ago, people have wondered how changes in
intron/exon structure occur, and what role these changes play in evolution. To answer these …

Nematodes are remarkably successful, both as free-living organisms and as parasites. The
diversity of parasitic lifestyles displayed by nematodes, and the diversity of hosts used …

Serotonin [5‐hydroxytryptamine (5‐HT)] modulates feeding activity, egg‐laying, and mating
behavior in the free‐living nematode, Caenorhabditis elegans. We have cloned a novel …

A search of databases with the sequence from the 5′ untranslated region of a Hydra cDNA
clone encoding a receptor protein-tyrosine kinase revealed that a number of Hydra cDNAs …

An identical 36-nucleotide exon was identified at the 5′ termini of different mRNAs from the
cestodeEchinococcus multilocularis. We provide evidence that this exon constitutes a new …