Molecular ecology, 2007-07, Vol.16 (14), p.2844-2851
2007
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- Autor(en) / Beteiligte
- Titel
- genetic basis of adaptive pigmentation variation in Drosophila melanogaster
- Ist Teil von
- Molecular ecology, 2007-07, Vol.16 (14), p.2844-2851
- Ort / Verlag
- Oxford, UK: Oxford, UK : Blackwell Publishing Ltd
- Erscheinungsjahr
- 2007
- Quelle
- Wiley-Blackwell Journals
- Beschreibungen/Notizen
- In a broad survey of Drosophila melanogaster population samples, levels of abdominal pigmentation were found to be highly variable and geographically differentiated. A strong positive correlation was found between dark pigmentation and high altitude, suggesting adaptation to specific environments. DNA sequence polymorphism at the candidate gene ebony revealed a clear association with the pigmentation of homozygous third chromosome lines. The darkest lines sequenced had nearly identical haplotypes spanning 14.5 kb upstream of the protein-coding exons of ebony. Thus, natural selection may have elevated the frequency of an allele that confers dark abdominal pigmentation by influencing the regulation of ebony.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 0962-1083eISSN: 1365-294XDOI: 10.1111/j.1365-294X.2007.03324.xTitel-ID: cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_2650379
- Format
- –
- Schlagworte
- Abdomen - physiology, Abdomen - radiation effects, abdominal pigmentation, Adaptation, Physiological - genetics, Adaptation, Physiological - radiation effects, Animals, Chromosomes - genetics, Chromosomes - radiation effects, DNA-Binding Proteins - genetics, Drosophila melanogaster, Drosophila melanogaster - genetics, Drosophila melanogaster - radiation effects, Drosophila Proteins - genetics, ebony, ecological adaptation, Female, Genetic Variation - radiation effects, Geography, Homozygote, Light, Molecular Sequence Data, Mutation - genetics, partial selective sweep, Phenotype, Pigmentation - genetics, Pigmentation - radiation effects, Selection, Genetic, sub-Saharan populations