Comparative analysis of gene {beta}Est2 expression in ontogenesis of Drosophila group virilis
- Kol`tsov Institute of Developmental Biology, Moscow (Russian Federation)
Expression of gene {beta}Est2 controlling synthesis of nonspecific carboxylesterase (EC 3.1.1.1) in ontogenesis of Drosophila group virilis was studied. It was established that, in all sibling species of this group, except D. lummei, {beta}-esterase is found at all developmental stages: in larvae, pupae, and imago. In D. lummei, {beta}-esterase is found at the imago stage only. Analysis of 17 laboratory strains of D. lummei of various geographical origins has shown that the absence of the gene {beta}Est2 expression in larvae and pupae can be considered a species-specific diagnostic feature. Comparison of esterase phenotypes in the progeny of crosses between D. lummei and other species has shown that the D. lummei gene is not expressed in hybrid larvae and pupae. Thus, species-specific expression of gene {beta}Est2 in ontogenesis of D. lummei is due to a cis-acting regulatory system. 22 refs., 4 figs., 1 tab.
- OSTI ID:
- 83475
- Journal Information:
- Russian Journal of Developmental Biology, Vol. 26, Issue 1; Other Information: PBD: Jan-Feb 1995; TN: Translated from Ontogenez; 26: No. 1, 84-89(1995)
- Country of Publication:
- United States
- Language:
- English
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