Gene expression of <i>sodium (potassium) chloride</i> (<i>nkcc/ncc</i>) <i>cotransporters</i>.

<p>Expression levels of <i>nkcc1a</i> (a), <i>nkcc1b</i> (b), <i>nkcc2</i> (c), <i>ncc</i> (d), in the gills and EGI tract of tilapia acclimated to freshwater (FW), seawater (SW) and hypersaline water (HSW). Each histogram bar represents the mean ± s.d. of the expression levels (log₁₀ copies of transcript per 50 ng cDNA). Expression levels labeled with different lowercase alphabets are significantly different (one-way ANOVA followed by Duncan's post-hoc test; <i>P</i><0.05) within the same tissue.