Development and survival of Drosophila melanogaster fed a diet containing pyrimidine analogs
1997
Ho, Y.K. | Clifford, A.J.
A single generation of Drosophila melanogaster was raised on different media. One of the media was unsupplemented (the control) and the others were supplemented with pyrimidine analog at 10.3 mmol/kg culture medium. The relative numbers of larvae, pupae, and F adults reproduced from parent flies on each medium served as an indication of the relative toxicity of the supplements. The relative decreasing order of toxicity of the pyrimidines was as follows: 5-bromouracil <thymine < uracil = orotic acid = control = cytosine, control < UMP. The toxic effects of 5-bromouracil and thymine seem to be associated with the addition of a bromine or methyl group to carbon 5 of the pyrimidine ring. The UMP supplemention increased the number of adult F1 flies above the control group indicating that UMP was not only non toxic but also that it was beneficial.
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