Tropical to sub-polar gradient in phospholipid composition suggests adaptive tuning of biological membrane function in drosophilds

0462466 - BC 2017 RIV GB eng J - Journal Article
Slotsbo, S. - Sorensen, J. G. - Holmstrup, M. - Košťál, Vladimír - Kellermann, V. - Overgaard, J.
Tropical to sub-polar gradient in phospholipid composition suggests adaptive tuning of biological membrane function in drosophilds.
Functional Ecology. Roč. 30, č. 5 (2016), s. 759-768. ISSN 0269-8463. E-ISSN 1365-2435
Institutional support: RVO:60077344
Keywords : cold tolerance * Drosophila * phospholipid fatty acid composition
Subject RIV: ED - Physiology
Impact factor: 5.630, year: 2016
http://onlinelibrary.wiley.com/doi/10.1111/1365-2435.12568/abstract

Drosophila species are found in tropical, subtropical and temperate environments and display
considerable interspecific variation in thermal tolerance. Here, we measured the PLFA
composition of 55 Drosophila species that have previously been characterized for their critical
thermal minima (CTmin) which represents a powerful correlate of drosophilids’ distribution
across thermal clines. Following phylogenetic correction, the data support a highly significant correlation between cold tolerance and both the proportion of unsaturated fatty acid and the degree of unsaturation. The tropical to subpolar gradient in PLFA composition found in this study suggests adaptive tuning of biological membrane function.

Permanent Link: http://hdl.handle.net/11104/0262019