Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)

Sexual dichromatism in birds is often attributed to selection for elaboration in males. However, evolutionary changes in either sex can result in plumage differences between them, and such changes can result in either gains or losses of dimorphism. We reconstructed the evolution of plumage colors in...

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Main Authors:	Johnson, Allison E, Jordan Price, J, Pruett-Jones, Stephen
Format:	Online
Language:	English
Published:	Blackwell Publishing Ltd 2013
Online Access:	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3790549/

id	pubmed-3790549
recordtype	oai_dc
spelling	pubmed-37905492013-10-07 Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae) Johnson, Allison E Jordan Price, J Pruett-Jones, Stephen Original Research Sexual dichromatism in birds is often attributed to selection for elaboration in males. However, evolutionary changes in either sex can result in plumage differences between them, and such changes can result in either gains or losses of dimorphism. We reconstructed the evolution of plumage colors in both males and females of species in Maluridae, a family comprising the fairy-wrens (Malurus, Clytomias, Sipodotus), emu-wrens (Stipiturus), and grasswrens (Amytornis). Our results show that, across species, males and females differ in their patterns of color evolution. Male plumage has diverged at relatively steady rates, whereas female coloration has changed dramatically in some lineages and little in others. Accordingly, in comparisons against evolutionary models, plumage changes in males best fit a Brownian motion (BM) model, whereas plumage changes in females fit an Ornstein Uhlenbeck (OU) multioptimum model, with different adaptive peaks corresponding to distributions in either Australia or New Guinea. Levels of dichromatism were significantly associated with latitude, with greater dichromatism in more southerly taxa. Our results suggest that current patterns of plumage diversity in fairy-wrens are a product of evolutionary changes in both sexes, driven in part by environmental differences across the distribution of the family. Blackwell Publishing Ltd 2013-09 2013-08-01 /pmc/articles/PMC3790549/ /pubmed/24101992 http://dx.doi.org/10.1002/ece3.686 Text en © 2013 The Authors. Ecology and Evolution published by John Wiley & Sons Ltd http://creativecommons.org/licenses/by/2.5/ Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation.
repository_type	Open Access Journal
institution_category	Foreign Institution
institution	US National Center for Biotechnology Information
building	NCBI PubMed
collection	Online Access
language	English
format	Online
author	Johnson, Allison E Jordan Price, J Pruett-Jones, Stephen
spellingShingle	Johnson, Allison E Jordan Price, J Pruett-Jones, Stephen Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)
author_facet	Johnson, Allison E Jordan Price, J Pruett-Jones, Stephen
author_sort	Johnson, Allison E
title	Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)
title_short	Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)
title_full	Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)
title_fullStr	Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)
title_full_unstemmed	Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)
title_sort	different modes of evolution in males and females generate dichromatism in fairy-wrens (maluridae)
description	Sexual dichromatism in birds is often attributed to selection for elaboration in males. However, evolutionary changes in either sex can result in plumage differences between them, and such changes can result in either gains or losses of dimorphism. We reconstructed the evolution of plumage colors in both males and females of species in Maluridae, a family comprising the fairy-wrens (Malurus, Clytomias, Sipodotus), emu-wrens (Stipiturus), and grasswrens (Amytornis). Our results show that, across species, males and females differ in their patterns of color evolution. Male plumage has diverged at relatively steady rates, whereas female coloration has changed dramatically in some lineages and little in others. Accordingly, in comparisons against evolutionary models, plumage changes in males best fit a Brownian motion (BM) model, whereas plumage changes in females fit an Ornstein Uhlenbeck (OU) multioptimum model, with different adaptive peaks corresponding to distributions in either Australia or New Guinea. Levels of dichromatism were significantly associated with latitude, with greater dichromatism in more southerly taxa. Our results suggest that current patterns of plumage diversity in fairy-wrens are a product of evolutionary changes in both sexes, driven in part by environmental differences across the distribution of the family.
publisher	Blackwell Publishing Ltd
publishDate	2013
url	https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3790549/
_version_	1612016348838232064

Different modes of evolution in males and females generate dichromatism in fairy-wrens (Maluridae)

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