期刊
EVOLUTION
卷 67, 期 8, 页码 2180-2193出版社
OXFORD UNIV PRESS
DOI: 10.1111/evo.12100
关键词
Allometry; Anolis; craniofacial; evo-devo; face length
资金
- National Science Foundation (NSF) [ECS-0335765]
- Harvard University Department of Organismic and Evolutionary Biology
- Harvard University Museum of Comparative Zoology
- David and Lucille Packard Foundation
- NSF [DEB-0519777, DEB-0519658]
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. Anolis lizards.
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