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DOI	10.1073/pnas.2008253117
	A release from developmental bias accelerates morphological diversification in butterfly eyespots
	Brattström O.; Aduse-Poku K.; van Bergen E.; French V.; Brakefield P.M.
发表日期	2020
ISSN	0027-8424
起始页码	27474
结束页码	27480
卷号	117 期号:44
英文摘要	Development can bias the independent evolution of traits sharing ontogenetic pathways, making certain evolutionary changes less likely. The eyespots commonly found on butterfly wings each have concentric rings of differing colors, and these serially repeated pattern elements have been a focus for evo–devo research. In the butterfly family Nymphalidae, eyespots have been shown to function in startling or deflecting predators and to be involved in sexual selection. Previous work on a model species of Mycalesina butterfly, Bicyclus anynana, has provided insights into the developmental control of the size and color composition of individual eyespots. Experimental evolution has also shown that the relative size of a pair of eyespots on the same wing surface is highly flexible, whereas they are resistant to diverging in color composition, presumably due to the underlying shared developmental process. This fixed color composition has been considered as a prime example of developmental bias with significant consequences for wing pattern evolution. Here, we test this proposal by surveying eyespots across the whole subtribe of Mycalesina butterflies and demonstrate that developmental bias shapes evolutionary diversification except in the genus Heteropsis which has gained independent control of eyespot color composition. Experimental manipulations of pupal wings reveal that the bias has been released through a novel regional response of the wing tissue to a conserved patterning signal. Our study demonstrates that development can bias the evolutionary independence of traits, but it also shows how bias can be released through developmental innovations, thus, allowing rapid morphological change, facilitating evolutionary diversification. © 2020 National Academy of Sciences. All rights reserved.
英文关键词	Developmental bias; Developmental biology; Evolutionary biology
语种	英语
scopus关键词	article; butterfly; development; developmental biology; nonhuman; wing
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/160748
作者单位	Brattström, O., Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, United Kingdom, African Butterfly Research Institute (ABRI), Nairobi, 0800, Kenya; Aduse-Poku, K., Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, United Kingdom; van Bergen, E., Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, United Kingdom; French, V., Institute of Evolutionary Biology, University of Edinburgh, Edinburgh, EH9 3JT, United Kingdom; Brakefield, P.M., Department of Zoology, University of Cambridge, Cambridge, CB2 3EJ, United Kingdom, Cambridge University Museum of Zoology, Cambridge, CB2 3EJ, United Kingdom
推荐引用方式 GB/T 7714	Brattström O.,Aduse-Poku K.,van Bergen E.,et al. A release from developmental bias accelerates morphological diversification in butterfly eyespots[J],2020,117(44).
APA	Brattström O.,Aduse-Poku K.,van Bergen E.,French V.,&Brakefield P.M..(2020).A release from developmental bias accelerates morphological diversification in butterfly eyespots.Proceedings of the National Academy of Sciences of the United States of America,117(44).
MLA	Brattström O.,et al."A release from developmental bias accelerates morphological diversification in butterfly eyespots".Proceedings of the National Academy of Sciences of the United States of America 117.44(2020).