Fig. 1. Rainbow trout (Oncorhynchus mykiss, Onmy) glutamine synthetase cDNA sequences. A summary of the sequence information for each of the four contiguous sequences, Onmy-GS01 – Onmy-GS04, is shown in black above the supporting clones. Corresponding GenBank accession numbers are shown in parentheses. Coding sequence (CDS) information is indicated by a black rectangle, while the 5' and 3' untranslated regions (UTR) are indicated by a thick line. Positions of the start and stop codons and the location of the supporting clones are shown in base pairs. Asterisks indicate possible polyadenylation signal. Supporting clones are shown as either grey or hatched rectangles, indicating clones isolated from the primary cDNA library (S. F. Perry, personal communication) or an alevin RNA preparation, respectively.