Duplication of the Desat2 gene. The 5' copy encodes the non-functional M-type which is found in Cosmopolitan populations, while the 3' copy encodes the functional Z-type allele found in Zimbabwe populations. A w[+] marker and a RS(I-CreI) site are present between the two copies.
Desat2MZ mutants exhibit increased starvation tolerance. The increase is highly significant in both sexes.
There is no significant difference in desiccation resistance in Desat2MZ flies.
desat2Z.3' mutants exhibit increased starvation tolerance. The increase is highly significant in both sexes.
There is no significant difference in desiccation resistance in desat2Z.3' flies.
desat2M.5' mutants exhibit increased starvation tolerance. The increase is highly significant in both sexes.
There is no significant difference in desiccation resistance in desat2M.5' flies.