Publication with datasets Loeschcke et al. 2000, Variation in body size and life history traits in Drosophila aldrichi and D. buzzatii from a latitudinal cline in eastern Australia, Heredity

Keywords
Chloroplast DNA, Genetic diversity, Haplotype, Intraspecific polymorphisms and Population structure

Summary

ABSTRACT: Latitudinal variation in thorax and wing size traits was studied in wild-caught flies of the cactophilic Drosophila species, D. aldrichi and D. buzzatii, and their laboratory-reared progeny. The flies originated from five populations in Queensland, Australia, spanning an 800-km transect. The laboratory flies were reared at controlled densities and three temperatures, 20, 25, and 30°C. We measured the same traits for the laboratory-reared flies as for the wild-caught flies, plus developmental time and viability. Latitudinal variation in wild-caught flies of both species followed a similar pattern for all linear size traits, with size generally increasing from north to south, but with flies from one intermediate locality markedly smaller. A drier environment at this locality and weather conditions immediately prior to collection, most likely explain the reduced size. Laboratory-reared D. aldrichi from this locality also were smaller than those from other localities, and had the fastest developmental time and highest viability. In laboratory-reared flies, body size traits did not show any clear trend to increase with latitude. The patterns of change with latitude were different between species, with D. aldrichi more similar in pattern to that of the natural populations. D. aldrichi had comparatively higher coefficients of variation in the laboratory-reared flies and lower viability at all temperatures. However, fluctuating asymmetry was lower in D. aldrichi in both wild-caught and laboratory-reared flies. The differences among populations of D. aldrichi for all traits were much larger than for D. buzzatii. As these differences in the laboratory-reared flies are expected to be largely genetic, they most likely reflect adaptation to specific (unknown) environmental factors that do not show linear latitudinal variation on the geographical scale studied.

Datasets

  • 80 Loeschcke et al. 2000 Thorax and wing traits natural populations

    This data file contains thorax length (mm), wing to thorax ratio (wing loading) and different wing measurements (l2, l3p, lpd, l3, w1, w2, w3) for wild-caught females and males of 5 Drosophila buzzatii and aldrichi populations that were collected in 1994 (Fig. 2).

  • 81 Loeschcke et al. 2000 Wing traits and asymmetry natural populations

    This data file contains wing area (mm2), wing shape, wing vein ratio and fluctuating asymmetry (FA) for wing area, wing shape and wing vein ratio for wild-caught females and males of 5 Drosophila buzzatii and aldrichi populations that were collected in 1994 (Fig. 2).

  • 82 Loeschcke et al. 2000 Wing asymmetry natural populations

    This data file contains fluctuating asymmetry for different wing measurements (l2, l3p, lpd, l3, w1, w2, w3) for wild-caught females and males of 5 Drosophila buzzatii and aldrichi that were collected in 1994.

  • 83 Loeschcke et al. 2000 Thorax and wing traits lab populations

    This data file contains thorax length (mm), wing to thorax ratio (wing loading) and different wing measurements (l2, l3p, lpd, l3, w1, w2, w3) for females and males of 5 Drosophila buzzatii and aldrichi lab populations that were collected in 1994. These populations were kept in the lab for five generations at 25°C and measurements were taken on progeny of the fifth generation which were reared at three temperature treatments (20, 25 and 30°C) (Fig. 3).

  • 84 Loeschcke et al. 2000 Wing traits and asymmetry lab populations

    This data file contains wing area (mm2), wing shape, wing vein ratio and fluctuating asymmetry (FA) for wing area, wing shape and wing vein ratio for females and males of 5 Drosophila buzzatii and aldrichi lab populations that were collected in 1994. These populations were kept in the lab for five generations at 25°C and measurements were taken on progeny of the fifth generation which were reared at three temperature treatments (20, 25 and 30°C) (Fig. 3).

  • 85 Loeschcke et al. 2000 Wing asymmetry lab populations

    This data file contains fluctuating asymmetry for different wing measurements (l2, l3p, lpd, l3, w1, w2, w3) for females and males of 5 Drosophila buzzatii and aldrichi lab populations that were collected in 1994. These populations were kept in the lab for five generations at 25°C and measurements were taken on progeny of the fifth generation which were reared at three temperature treatments (20, 25 and 30°C).

  • 86 Loeschcke et al. 2000 Development and viability lab populations

    This data file contains mean development time (days) and viability (%) for 5 Drosophila buzzatii and aldrichi lab populations that were collected in 1994. These populations were kept in the lab for five generations at 25°C and measurements were taken on progeny of the fifth generation which were reared at three temperature treatments (20, 25 and 30°C).

Drosophila Species

Publication Citations

  • Loeschcke, Volker, Bundgaard, Jørgen, and Barker, J S F, 'Variation in body size and life history traits in Drosophila aldrichi and D. buzzatii from a latitudinal cline in eastern Australia', Heredity, vol. 85, no. 5, 2000, pp. 423-433. http://dx.doi.org/10.1046/j.1365-2540.2000.00766.x. Details

Digital Resources

Title
Materials and Methods - Loeschcke et al. 2000, Heredity
Type
methods
Date
2000

http://www.nature.com/hdy/journal/v85/n5/full/6887660a.html