Fig. 3.
Zinc storage is affected in w and cm mutants. Two control strains (wild-type Tan3 and y1) and two low-zinc mutants (w* and cm1) were grown on media with the zinc chelator TPEN (red bars) or supplemented with zinc sulfate (green bars) prior to measuring zinc and iron by AAS in whole flies from these populations. The control strains respond to the zinc treatments by changing body zinc stores, whereas this response is impaired in low-zinc mutants. Iron was unaffected. Two-way ANOVA showed differences by diet and by genotype; groups not different from each other in a Tukey's post hoc analysis are marked by the same lower case letter.