Heritabilities and additive genetic variances of the activities of some enzymes in Drosophila melanogaster populations living in different habitats

Article Abstract:

The additive genetic variance of the activities of some enzymes in a D. melanogaster population is determined and the variance between samples living in two different habitats, where the alcohol concentration of the breeding substrate is markedly different, is also compared. There is no significant difference found in the average activities between the two habitats for all enzymes and a consistent habitat pattern is absent.

Sweden, Environmental aspects, Habitat (Ecology), Habitats, Genetic variation

---

A stable triple Wolbachia infection in Drosophila with nearly additive incompatibility effects

Article Abstract:

Injection experiments carried out in Drosophila to test whether triple-infected lines could be established and a stable triple Wolbachia infection in Drosophila with almost additive incompatibility effects are discussed. No evidence for interference between modification effects of the Wolbachia strains was found in males but some incompatibility was seen between triple-infected males and females.

United States, France, Statistical Data Included, Research, Bacteria, Cytoplasmic inheritance

---

The recent demographic and adaptive history of Drosophila melanogaster

Article Abstract:

Population genetic analyses have shown that the cosmopolitan species Drosophila melanogaster has an Afrotropical origin and it colonized the rest of the world only very recently. The demographic changes are accompanied by the fixation of many beneficial mutations and the estimated rate of adaptive substitution on the X chromosome is in the order of [10.sup.11] per nucleotide site per generation.

Physiological aspects, Adaptation (Biology), Evolutionary adaptation, X chromosome

Similar abstracts:

• Abstracts: Evidence for intrinsic differences in the formation of chromatin domains in Drosophila melanogaster. Drawing a stripe in Drosophila imaginal disks: negative regulation of decapentaplegic and patched expression by engrailed
• Abstracts: Molecular variation of Adh and P6 genes in an African population of Drosophilamelanogaster and its relation to chromosomal inversions
• Abstracts: Segment-polarity mutations cause stripes of defects along a leg segment in Drosophila. part 2 The Drosophila Par domain protein I gene, Pdp1, is a regulator of larval growth, mitosis and endoreplication
• Abstracts: Localization and characterization of alpha-glucosidase activity in Brettanomyces lambicus. Isolation of auxotrophic mutants of diploid industrial yeast strains after UV mutagenesis
• Abstracts: Comparison of biomass dry weights and radial growth rates of fungal colonies on media solidified with different gelling compounds

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.