eCite Digital Repository

The evolution of sex ratios and sex-determining systems


Uller, T and Pen, I and Wapstra, E and Beukeboom, LW and Komdeur, J, The evolution of sex ratios and sex-determining systems, Trends in Ecology & Evolution, 22, (6) pp. 292-297. ISSN 0169-5347 (2007) [Refereed Article]

DOI: doi:10.1016/j.tree.2007.03.008


Sex determination is a fundamental process governed by diverse mechanisms. Sex ratio selection is commonly implicated in the evolution of sex-determining systems, although formal models are rare. Here, we argue that, although sex ratio selection can induce shifts in sex determination, genomic conflicts between parents and offspring can explain why single-factor systems (e.g. XY/XX or ZW/ZZ) are common even in species that experience selection for biased sex ratios. Importantly, evolutionary shifts in sex determination do not always result in the biased production of sons and daughters sensu sex ratio theory. Thus, equal sex ratios might be an emergent character of sex-determining systems even when biased sex ratios are favored by selection. © 2007 Elsevier Ltd. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Evolutionary biology
Research Field:Evolutionary biology not elsewhere classified
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in the environmental sciences
UTAS Author:Wapstra, E (Associate Professor Erik Wapstra)
ID Code:44981
Year Published:2007
Web of Science® Times Cited:75
Deposited By:Zoology
Deposited On:2007-08-01
Last Modified:2008-04-02

Repository Staff Only: item control page