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Telonis-Scott, M., Hallas, R., McKechnie, S.W., Wee, C.W., Hoffmann, A.A. (2009). Selection for cold resistance alters gene transcript levels in Drosophila melanogaster.  J. Insect Physiol. 55(6): 549--555.
FlyBase ID
FBrf0208060
Publication Type
Research paper
Abstract

Microarrays have been used to examine changes in gene expression underlying responses to selection for increased stress resistance in Drosophila melanogaster, but changes in expression patterns associated with increased resistance to cold stress have not been previously reported. Here we describe such changes in basal expression levels in replicate lines following selection for increased resistance to chill coma stress. We found significant up- or down-regulation of expression in 94 genes on the Affymetrix Genome 2.0 array. Quantitative RT-PCR was used to confirm changes in expression of six genes. Some of the identified genes had previously been associated with stress resistance but no previously identified candidate genes for cold resistance showed altered patterns of expression. Seven differentially expressed genes that form a tight chromosomal cluster and an unlinked gene AnnX may be potentially important for cold adaptation in natural populations. Artificial selection for chill coma resistance therefore altered basal patterns of gene expression, but we failed to link these changes to plastic changes in expression under cold stress or to previously identified candidate genes for components of cold resistance.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    J. Insect Physiol.
    Title
    Journal of Insect Physiology
    Publication Year
    1957-
    ISBN/ISSN
    0022-1910 1879-1611
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