In this study the differential expression of myostatin gene was investigated in adult
stages in Nile tilapia (Oreochromis niloticus) by realtime PCR. Myostatin gene was
found to be expressed in various body tissues including: liver, intestine, gills, skin,
spleen, kidneys, muscle, eyes and brain tissues. However, the highest expression level
of myostatin was found in brain tissue while the lowest expression level was in the
spleen and eyes.These results support the early hypothesis suggested that Myostatins in fish have retained a different partition (compared with mammals) of the expression patterns.
Key words: myostatin, Nile tilapia, Oreochromis niloticus, GDF-8, gene expression
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