Title |
Comparing the adaptive landscape across trait types: larger QTL effect size in traits under biotic selection
|
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Published in |
BMC Ecology and Evolution, March 2011
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DOI | 10.1186/1471-2148-11-60 |
Pubmed ID | |
Authors |
Allison M Louthan, Kathleen M Kay |
Abstract |
In a spatially and temporally variable adaptive landscape, mutations operating in opposite directions and mutations of large effect should be commonly fixed due to the shifting locations of phenotypic optima. Similarly, an adaptive landscape with multiple phenotypic optima and deep valleys of low fitness between peaks will favor mutations of large effect. Traits under biotic selection should experience a more spatially and temporally variable adaptive landscape with more phenotypic optima than that experienced by traits under abiotic selection. To test this hypothesis, we assemble information from QTL mapping studies conducted in plants, comparing effect directions and effect sizes of detected QTL controlling traits putatively under abiotic selection to those controlling traits putatively under biotic selection. |
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