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Citation for Study 19838

About Citation title: "Adaptive signal coloration maintained in the face of gene flow in a Hispaniolan Anolis lizard".
About Study name: "Adaptive signal coloration maintained in the face of gene flow in a Hispaniolan Anolis lizard".
About This study is part of submission 19838 (Status: Published).

Citation

Ng J., Ossip-klein A.G., & Glor R.E. 2016. Adaptive signal coloration maintained in the face of gene flow in a Hispaniolan Anolis lizard. BMC Evolutionary Biology, 16(193).

Authors

  • Ng J.
  • Ossip-klein A.G.
  • Glor R.E.

Abstract

Background: Studies of geographic variation can provide insight into the evolutionary processes involved in the early stages of biological diversification. In particular, multiple, replicated cases of geographic trait divergence present a powerful approach to study how patterns of introgression and adaptive divergence can vary with geographic space and time. In this study, we conduct replicated, fine-scaled molecular genetic analyses of striking geographic dewlap color variation of a Hispaniolan Anolis lizard, Anolis distichus, to investigate whether adaptive trait divergence is consistently associated with speciation, whereby genetic divergence is observed with neutral markers, or whether locally adapted traits are maintained in the face of continued gene flow. Results: We find instances where shifts in adaptive dewlap coloration across short geographic distances are associated with reproductive isolation as well as maintained in the face of gene flow, suggesting the importance of both processes in maintaining geographic dewlap variation. Conclusion: Our study suggests that dewlap color differences alone is not a prezygotic reproductive barrier in anoles, but this adaptive trait is nonetheless under strong divergent natural selection.

Keywords

dewlap, geographic variation, local adaptation, speciation, Anolis distichus

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About this resource

  • Canonical resource URI: http://purl.org/phylo/treebase/phylows/study/TB2:S19838
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