Journal article
Environmental variation partitioned into separate heritable components
M Ørsted, PD Rohde, AA Hoffmann, P Sørensen, TN Kristensen
Evolution | OXFORD UNIV PRESS | Published : 2018
DOI: 10.1111/evo.13391
Abstract
Trait variation is normally separated into genetic and environmental components, yet genetic factors also control the expression of environmental variation, encompassing plasticity across environmental gradients and within-environment responses. We defined four components of environmental variation: plasticity across environments, variability in plasticity, variation within environments, and differences in within-environment variation across environments. We assessed these components for cold tolerance across five rearing temperatures using the Drosophila melanogaster Genetic Reference Panel (DGRP). The four components were found to be heritable, and genetically correlated to different exten..
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Awarded by NIH Office of the Director
Funding Acknowledgements
DGRP and UAS stocks were obtained from the Bloomington Drosophila Stock Center (NIH P40OD018537) and from Vienna Drosophila Resource Center (VDRC), respectively. We thank Hector Herranz Munoz from Copenhagen University, Denmark, for providing us with the act5-Gal4/CyO line. We thank Iben R. Jensen, Helle Blendstrup, Susan M. Hansen, and Iben V. Nielsen for invaluable laboratory assistance. This research was financed by the Danish Natural Science Research Council through a Sapere aude stipend to T.N.K. (DFF - 4002-00036), the Science Industry Endowment Fund, a grant from the Velux Visiting Professor programme to A.A.H., by the Otto Monsted Foundation to M.O., the Lundbeck Foundation, Denmark to P.D.R. (grant number R155-2014-1724), and by the Danish Strategic Research Council (GenSAP: Centre for Genomic Selection in Animals and Plants, contract 12-132452) to P.S. The authors declare no conflict of interests regarding the publication of this article.