Growth temperature and genetic variability of wing dimensions in Drosophila: opposite trends in two sibling species.

Abstract excerpt

Thirteen linear wing dimensions were measured in 10 isofemale lines of Drosophila melanogaster and D. simulans grown at seven constant temperatures from 12 to 31 degrees C. Within-line (environmental) variability, estimated by the within-line coefficient of variation (CVw), exhibited similar variation patterns in the two species, that is higher values at extreme (low or high) temperatures. The magnitude of...

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