Metallothionein gene duplications and metal tolerance in natural populations of Drosophila melanogaster.


A search for duplications of the Drosophila melanogaster metallothionein gene (Mtn) yielded numerous examples of this type of chromosomal rearrangement. These duplications are distributed widely--we found them in samples from four continents, and they are functional--larvae carrying Mtn duplications produce more Mtn RNA and tolerate increased cadmium and… (More)

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