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. 1987 May;116(1):87–97. doi: 10.1093/genetics/116.1.87

Components of Genetic Variation Associated with Second and Third Chromosome Gene Arrangements in Drosophila melanogaster

James A Ferrari 1
PMCID: PMC1203124  PMID: 17246381

Abstract

The effects of naturally occuring combinations of second and third chromosome gene arrangements of Drosophila melanogaster on two quantitative traits were partitioned into parameters of additive, dominance and interaction components of genetic variation. Development time and preadult survival of the gene arrangement genotypes were measured under four experimental conditions. Gene arrangement effects, when significant, were predominantly additive under all conditions. Experimental conditions, however, did influence gene arrangement effects. A second chromosome effect on development time was detected when amount of food or temperature was reduced, but not under optimal conditions. A third chromosome additive effect on development was observed under all experimental conditions. A consistent interaction effect between second and third chromosome gene arrangements was detected only at low temperature. Gene arrangement effects on survival were not as consistent as for development time, but also depended on experimental conditions.

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Selected References

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