Genotype-environment interactions and the estimation of the genomic mutation rate in Drosophila melanogaster.

Abstract excerpt

We have studied the relative fitnesses of three genotypes of Drosophila melanogaster in 50 environments. Two genotypes, the MA lines, had accumulated mutations in the absence of natural selection over 62 generations. The third was a related strain where selection had continued to act. The environments differed in three factors: parental density, dilution of the medium, and the temperature régime and medium...

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