Publication with datasets Magiafoglou et al. 2002, Shifting clinal patterns and microsatellite variation in Drosophila serrata populations: a comparison of populations near the southern border of the species range, Journal of Evolutionary Biology

Keywords
Drosophila serrata, Cline, Geographical variation, Seasonal variation and Stress

Summary

ABSTRACT: Geographical patterns for quantitative traits in Drosophila and other insects are commonly used to investigate climatic selection. They are usually determined from comparisons of populations over extensive areas and based on one collection per population. Here we consider patterns in the Australian endemic species Drosophila serrata established over a shorter transect with repeated sampling. Summer (prewinter) and spring (post-winter) collections were made from 10 to 14 localities, incorporating the southern border of Drosophila serrata and extending approximately 1000 km northwards along the eastern coast of Australia. Linear or curvilinear associations with latitude were evident for development time, viability and cold resistance but patterns differed between collections. Some geographical (population) and genetic associations between traits were found and these also tended to differ between collections. Results confirm the importance of cold stress resistance over winter to the southern border of this species. Microsatellite markers were developed for Drosophila serrata. These indicated a low level of genetic differentiation between populations, high levels of gene flow and no evidence that the most southerly populations were isolated. The results suggest that selection generated geographical patterns in cold resistance, development time and viability, and that substantial gene flow may prevent adaptation at the border to conditions beyond the current distribution of Drosophila serrata.

Datasets

  • 72 Magiafoglou et al. 2002, Development time

    This data file contains mean development time (hours) for female and male Drosophila serrata populations collected before (14 populations) and after (10 populations) winter in 1999 (Fig. 1). Note longitudes in data are approximate.

  • 73 Magiafoglou et al. 2002, Viability and cold resistance

    This data file contains mean and coefficient of variation (CV) of pupal to adult viability (%), mean egg to adult viability (%) and mean cold resistance (survival %) for Drosophila serrata populations collected before (14/12 populations) and after (10 populations) winter in 1999 (Fig. 2&3). Note longitudes in data are approximate.

  • 96 Magiafoglou et al. 2002 Microsatellite markers

    This data set contains raw genotypes of 8 microsatellite markers for Drosophila serrata populations collected before (14 populations) and after (10 populations) winter in 1999 (Table 4). Note longitudes in data are approximate.

Publication Citations

  • Magiafoglou, A., Carew, M. E. and Hoffmann, A. A., 'Shifting clinal patterns and microsatellite variation in Drosophila serrata populations: a comparison of populations near the southernborder of the species range', Journal of Evolutionary Biology, vol. 15, no. 5, 2002, pp. 763-774. http://dx.doi.org/10.1046/j.1420-9101.2002.00439.x. Details

Digital Resources

Title
Materials and Methods - Magiafoglou et al. 2002, Journal of Evolutionary Biology
Type
methods
Date
2002

http://onlinelibrary.wiley.com/doi/10.1046/j.1420-9101.2002.00439.x/full