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Science 29 February 1980:
Vol. 207. no. 4434, pp. 995 - 997
DOI: 10.1126/science.7352303
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Articles

Science, Vol 207, Issue 4434, 995-997
Copyright © 1980 by American Association for the Advancement of Science

articles

Tissue specificity of enzyme expression regulated by diffusible factors: evidence in Drosophila hybrids

WJ Dickinson

Pairs of hybridizable species of Hawaiian picture-winged Drosophila differ qualitatively in the distributions of specific enzymes in their tissues. An examination of the patterns of enzyme expression in the hybrids showed that, in three instances, absence of an enzyme from a specific tissue was dominant to presence. Since other developmental features indicated that both parental genomes were functioning, these results suggest that, in these cases, the pattern differences in the parental species were due to diffusible factors that affected expression of the relevant structural genes rather than to differences in the genes themselves or in cis-acting regulatory sites.


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Anomalies in the Expression Profile of Interspecific Hybrids of Drosophila melanogaster and Drosophila simulans.
J. M. Ranz, K. Namgyal, G. Gibson, and D. L. Hartl (2004)
Genome Res. 14, 373-379
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Science. ISSN 0036-8075 (print), 1095-9203 (online)