ArticleProceedings. Biological sciences2009
Testing evolutionary hypotheses about species borders: patterns of genetic variation towards the southern borders of two rainforest Drosophila and a related habitat generalist.
Article in Proceedings. Biological sciences, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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Who cites it
12 citing papers in PubMed, 46 citations in OpenAlex.
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- Are Signals of Local Environmental Adaptation Diluted by Laboratory Culture?Current research in insect science · 2022Article
- A Genomic Reference Panel forG3 (Bethesda, Md.) · 2018Article
- Wax, sex and the origin of species: Dual roles of insect cuticular hydrocarbons in adaptation and mating.BioEssays : news and reviews in molecular, cellular and developmental biology · 2015Review
- Quantitative genetic variance and multivariate clines in the Ivyleaf morning glory, Ipomoea hederacea.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2014Article
- Review
- Ecological suitability and spatial distribution of five Anopheles species in Amazonian Brazil.The American journal of tropical medicine and hygiene · 2013Article
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- Physical and Linkage Maps for Drosophila serrata, a Model Species for Studies of Clinal Adaptation and Sexual Selection.G3 (Bethesda, Md.) · 2012Article
- Geographic range limits of species.Proceedings. Biological sciences · 2009Article
- Testing limits to adaptation along altitudinal gradients in rainforest Drosophila.Proceedings. Biological sciences · 2009Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Several evolutionary hypotheses help explain why only some species adapt readily to new conditions and expand distributions beyond borders, but there is limited evidence testing these hypotheses. In this study, we consider patterns of neutral (microsatellite) and quantitative genetic variation in traits in three species of Drosophila from the montium species group in eastern Australia. We found little support for restricted or asymmetrical gene flow in any species. In rainforest-restricted Drosophila birchii, there was evidence of selection for increased desiccation and starvation resistance towards the southern border, and a reduction in genetic diversity in desiccation resistance at this border. No such patterns existed for Drosophila bunnanda, which has an even more restricted distribution. In the habitat generalist Drosophila serrata, there was evidence for geographic selection for wing size and development time, although clinal patterns for increased cold and starvation resistance towards the southern border could not be differentiated from neutral expectations. These findings suggest that borders in these species are not limited by low overall genetic variation but instead in two of the species reflect patterns of selection and genetic variability in key traits limiting borders.
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