Please use this identifier to cite or link to this item:
https://hdl.handle.net/1959.11/17796
Title: | Convergent evolution of sexual dimorphism in skull shape using distinct developmental strategies | Contributor(s): | Sanger, Thomas J (author); Sherratt, Emma (author); McGlothlin, Joel W (author); Brodie, Edmund D (author); Losos, Jonathan B (author); Abzhanov, Arhat (author) | Publication Date: | 2013 | Open Access: | Yes | DOI: | 10.1111/evo.12100 | Handle Link: | https://hdl.handle.net/1959.11/17796 | Open Access Link: | http://dash.harvard.edu/handle/1/12559595 | Abstract: | Studies integrating evolutionary and developmental analyses of morphological variation are of growing interest to biologists as they promise to shed fresh light on the mechanisms of morphological diversification. Sexually dimorphic traits tend to be incredibly divergent across taxa. Such diversification must arise through evolutionary modifications to sex differences during development. Nevertheless, few studies of dimorphism have attempted to synthesize evolutionary and developmental perspectives. Using geometric morphometric analysis of head shape for 50 'Anolis' species, we show that two clades have converged on extreme levels of sexual dimorphism through similar, male-specific changes in facial morphology. In both clades, males have evolved highly elongate faces whereas females retain faces of more moderate proportion. This convergence is accomplished using distinct developmental mechanisms; one clade evolved extreme dimorphism through the exaggeration of a widely shared, potentially ancestral, developmental strategy whereas the other clade evolved a novel developmental strategy not observed elsewhere in the genus. Together, our analyses indicate that both shared and derived features of development contribute to macroevolutionary patterns of morphological diversity among 'Anolis' lizards. | Publication Type: | Journal Article | Source of Publication: | Evolution, 67(8), p. 2180-2193 | Publisher: | John Wiley & Sons Ltd | Place of Publication: | United States of America | ISSN: | 1558-5646 0014-3820 |
Fields of Research (FoR) 2008: | 060309 Phylogeny and Comparative Analysis 060303 Biological Adaptation 060809 Vertebrate Biology |
Fields of Research (FoR) 2020: | 310410 Phylogeny and comparative analysis 310403 Biological adaptation 310914 Vertebrate biology |
Socio-Economic Objective (SEO) 2008: | 970106 Expanding Knowledge in the Biological Sciences | Socio-Economic Objective (SEO) 2020: | 280102 Expanding knowledge in the biological sciences | Peer Reviewed: | Yes | HERDC Category Description: | C1 Refereed Article in a Scholarly Journal |
---|---|
Appears in Collections: | Journal Article |
Files in This Item:
File | Description | Size | Format |
---|
SCOPUSTM
Citations
75
checked on Sep 14, 2024
Page view(s)
1,000
checked on Mar 9, 2023
Items in Research UNE are protected by copyright, with all rights reserved, unless otherwise indicated.