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Gene Set #75559 - Drosophilia sex x line Differential Expression

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Description: Drosophilia sex x line Differential Expression q<0.05.
Uploaded: 18 Jun 2010
Species: Drosophila melanogaster
Authors: Morozova TV, Anholt RR, Mackay TF
Title: Phenotypic and transcriptional response to selection for alcohol sensitivity in Drosophila melanogaster.
Journal: Genome biology 2007 , Vol 8 , pp. R231
Abstract: Alcoholism is a complex disorder determined by interactions between genetic and environmental risk factors. Drosophila represents a powerful model system to dissect the genetic architecture of alcohol sensitivity, as large numbers of flies can readily be reared in defined genetic backgrounds and under controlled environmental conditions. Furthermore, flies exposed to ethanol undergo physiological and behavioral changes that resemble human alcohol intoxication, including loss of postural control, sedation, and development of tolerance.We performed artificial selection for alcohol sensitivity for 35 generations and created duplicate selection lines that are either highly sensitive or resistant to ethanol exposure along with unselected control lines. We used whole genome expression analysis to identify 1,678 probe sets with different expression levels between the divergent lines, pooled across replicates, at a false discovery rate of q < 0.001. We assessed to what extent genes with altered transcriptional regulation might be causally associated with ethanol sensitivity by measuring alcohol sensitivity of 37 co-isogenic P-element insertional mutations in 35 candidate genes, and found that 32 of these mutants differed in sensitivity to ethanol exposure from their co-isogenic controls. Furthermore, 23 of these novel genes have human orthologues.Combining whole genome expression profiling with selection for genetically divergent lines is an effective approach for identifying candidate genes that affect complex traits, such as alcohol sensitivity. Because of evolutionary conservation of function, it is likely that human orthologues of genes affecting alcohol sensitivity in Drosophila may contribute to alcohol-associated phenotypes in humans.   PUBMED: 17973985
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Ontological Associations:
  • D012641: Selection, Genetic (PubMed MeSH Annotations)
  • D000431: Ethanol (PubMed MeSH Annotations; Publication, NCBO Annotator)
  • D020869: Gene Expression Profiling (PubMed MeSH Annotations)
  • D046228: Microarray Analysis (PubMed MeSH Annotations)
  • D012723: Sex (Description, NCBO Annotator)
  • D004330: Drosophila (Description, NCBO Annotator; Publication, NCBO Annotator)
  • D012926: Social Control, Formal (Publication, NCBO Annotator)
  • D005191: Family Characteristics (Publication, NCBO Annotator)
  • D006801: Humans (Publication, NCBO Annotator)
  • D017931: DNA Primers (PubMed MeSH Annotations)
  • D010641: Phenotype (PubMed MeSH Annotations)
  • D000818: Animals (PubMed MeSH Annotations)
  • D005787: Gene Frequency (PubMed MeSH Annotations)
  • D004331: Drosophila melanogaster (PubMed MeSH Annotations; Description, NCBO Annotator; Publication, NCBO Annotator)
  • D003433: Crosses, Genetic (PubMed MeSH Annotations)
  • D012307: Risk Factors (Publication, NCBO Annotator)
  • D012306: Risk (Publication, NCBO Annotator)
  • D000339: Affect (Publication, NCBO Annotator)
  • D000437: Alcoholism (PubMed MeSH Annotations; Publication, NCBO Annotator)
  • D000426: Alcohol Dehydrogenase (PubMed MeSH Annotations)
  • D009154: Mutation (Publication, NCBO Annotator)
  • D005786: Gene Expression Regulation (PubMed MeSH Annotations)
  • D001108: Architecture as Topic (Publication, NCBO Annotator)
  • D004175: Diptera (Publication, NCBO Annotator)

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