Fig. 5. Developmental expression patterns for Atlantic cod GLUT1. Two sets of Atlantic cod (A,B) were analyzed for GLUT1 expression at various stages of development as indicated, from eggs to small fish, by RT-PCR. GLUT1 is expressed at all developmental stages examined. Letters above age of post-hatch fish refer to food offered: T-ISO, T-ISO enriched rotifers; AER, algamac 2000 enriched rotifers; ART, enriched artemia; DF, dry food (see Materials and methods for details). MW, DNA marker (bp).