The Society for Integrative and Comparative Biology
How and When Selection Experiments Might Actually be Useful1
1 School of Computational Science, Florida State University, Tallahassee, Florida 32306-4120
2 Department of Zoology, University of Florida, Gainesville, Florida 32611-8525
3 Department of Biological Science, Florida State University, Tallahassee, Florida 32306-4340
Laboratory natural selection and artificial selection are vital tools for addressing specific questions about evolutionary patterns of variation. Laboratory natural selection can illuminate whether a putative selective agent is capable of generating long-term, sustained changes in individual traits and suites of traits. Artificial selection is the essential tool for understanding the general evolvability of traits and the extent to which genetic correlations constrain evolution. We review the contexts in which each type of experiment seems capable of offering key insights into important evolutionary issues. We also discuss theoretical and methodological considerations that play critical roles in designing selection experiments that are relevant to evolutionary patterns of trait variation. In particular, we focus on the critical role of selection intensity and the consequences of experiments with different intensities. While selection experiments are not practical in many cases, sophisticated selection experiments—designed with careful consideration of the theory of selection—should be taken beyond model organisms and used in well-chosen natural systems to understand natural patterns of variation.
CiteULike 
Connotea 
Del.icio.us What's this?
This article has been cited by other articles:
|
|
 |
|
  L. Gay, P.E. Eady, R. Vasudev, D.J. Hosken, and T. Tregenza Does reproductive isolation evolve faster in larger populations via sexually antagonistic coevolution? Biol Lett, October 23, 2009; 5(5): 693 - 696. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 D. O. Conover, S. B. Munch, and S. A. Arnott Reversal of evolutionary downsizing caused by selective harvest of large fish Proc R Soc B, June 7, 2009; 276(1664): 2015 - 2020. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. W McGlothlin and E. D Ketterson Hormone-mediated suites as adaptations and evolutionary constraints Phil Trans R Soc B, May 12, 2008; 363(1497): 1611 - 1620. [Abstract] [Full Text] [PDF]
|
|
|
|
 |
|
 J. G. Swallow and T. Garland Jr. Selection Experiments as a Tool in Evolutionary and Comparative Physiology: Insights into Complex Traits--an Introduction to the Symposium Integr. Comp. Biol., June 1, 2005; 45(3): 387 - 390. [Full Text] [PDF]
|
|
|
|
|
|
H. S. Callahan Using Artificial Selection to Understand Plastic Plant Phenotypes Integr. Comp. Biol., June 1, 2005; 45(3): 475 - 485. [Abstract] [Full Text] [PDF]
|
|