Genetical variation for enzyme activity in a population of Drosophila Melanogaster
- 1 February 1978
- journal article
- research article
- Published by Springer Nature in Heredity
- Vol. 40 (1) , 51-57
- https://doi.org/10.1038/hdy.1978.6
Abstract
Chromosome substitution lines derived from two inbred strains of Drosophila melanogaster homozygous for the Adhs allele of alcohol dehydrogenase but differing significantly in ADH activity have been analysed. Variation in activity can be attributed to all three major chromosomes. The effect of the second chromosome, where the ADH structural gene is located, can be modified significantly by the genotype of both the first and the third chromosomes. The most substantial single effect results from homozygous differences between the third chromosomes. In contrast, differences between the X chromosomes are revealed only when the second or second and third chromosomes are heterozygous.Keywords
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