A Rapid Shift in a Classic Clinal Pattern in Drosophila Reflecting Climate Change
Top Cited Papers
- 29 April 2005
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 308 (5722) , 691-693
- https://doi.org/10.1126/science.1109523
Abstract
Geographical clines in genetic polymorphisms are widely used as evidence of climatic selection and are expected to shift with climate change. We show that the classic latitudinal cline in the alcohol dehydrogenase polymorphism of Drosophila melanogaster has shifted over 20 years in eastern coastal Australia. Southern high-latitude populations now have the genetic constitution of more northerly populations, equivalent to a shift of 4° in latitude. A similar shift was detected for a genetically independent inversion polymorphism, whereas two other linked polymorphisms exhibiting weaker clinal patterns have remained relatively stable. These genetic changes are likely to reflect increasingly warmer and drier conditions and may serve as sensitive biomarkers for climate change.Keywords
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