Publication with datasets van Heerwaarden & Sgrò 2011, The effect of developmental temperature on the genetic architecture underlying size and thermal clines in Drosophila melanogaster and D. simulans from the east coast of Australia, Evolution

Keywords: Cold, Epistasis, Heat, Inversion, Line cross, Thorax and Wing

Summary

ABSTRACT: Body size and thermal tolerance clines in Drosophila melanogaster occur along the east coast of Australia. However the extent to which temperature affects the genetic architecture underlying the observed clinal divergence remains unknown. Clinal variation in these traits is associated with cosmopolitan chromosome inversions that cline in D. melanogaster. Whether this association influences the genetic architecture for these traits in D. melanogaster is unclear. Drosophila simulans shows linear clines in body size, but nonlinear clines in cold resistance. Clinally varying inversions are absent in D. simulans. Line-cross and clinal analyses were performed between tropical and temperate populations of D. melanogaster and D. simulans from the east coast of Australia to investigate whether clinal patterns and genetic effects contributing to clinal divergence in wing centroid size, thorax length, wing-to-thorax ratio, cold and heat resistance differed under different developmental temperatures (18°C, 25°C, and 29°C). Developmental temperature influenced the genetic architecture in both species. Similarities between D. melanogaster and D. simulans suggest clinally varying inversion polymorphisms have little influence on the genetic architecture underlying clinal divergence in size in D. melanogaster. Differing genetic architectures across different temperatures highlight the need to consider different environments in future evolutionary and molecular studies of phenotypic divergence.

Datasets

42 Van Heerwaarden & Sgrò 2011, D. melanogaster thorax length
This data file contains raw thorax length of female and male D. melanogaster from three replicate vials at three rearing temperatures and from 18 populations collected in 2008 (Fig. 1).
43 Van Heerwaarden & Sgrò 2011, D. melanogaster wing centroid size
This data file contains raw wing centroid size of female and male D. melanogaster from three replicate vials at three rearing temperatures and from 18 populations collected in 2008.
44 Van Heerwaarden & Sgrò 2011, D. melanogaster wing thorax ratio
This data file contains wing-to-thorax ratio of 10 female and male D. melanogaster from three replicate vials at three rearing temperatures and from 18 populations collected in 2008 (Fig. 1).
45 Van Heerwaarden & Sgrò 2011, D. simulans thorax length
This data file contains raw thorax length of female and male D. simulans from three replicate vials at three rearing temperatures and from 16 populations collected in 2008 (Fig. 2).
46 Van Heerwaarden & Sgrò 2011, D. simulans wing centroid size
This data file contains raw wing centroid size of female and male D. simulans from three replicate vials at three rearing temperatures and from 16 populations collected in 2008 (Fig. 2).
47 Van Heerwaarden & Sgrò 2011, D. simulans wing thorax ratio
This data file contains wing-to-thorax ratio of female and male D. simulans from three replicate vials at three rearing temperatures and from 16 populations collected in 2008 (Fig. 2).

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van Heerwaarden, B. and Sgrò, C. M., 'The effect of developmental temperature on the genetic architecture underlying size and thermal clines in Drosophila melanogaster and D. simulans from the east coast of Australia', Evolution, vol. 65, no. 4, 2011, pp. 1048-1067. http://dx.doi.org/10.1111/j.1558-5646.2010.01196.x. Details

Publication with datasets van Heerwaarden & Sgrò 2011, The effect of developmental temperature on the genetic architecture underlying size and thermal clines in Drosophila melanogaster and D. simulans from the east coast of Australia, Evolution

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