Anterior–Posterior Patterning in Lepidopteran Wings

The color patterns on the wings of butterflies and moths are among the most complex manifestations of pattern formation in nature. The complexities of these patterns arise from the diversification of a conserved set of homologous elements known as the Nymphalid Ground Plan that can change color, shi...

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Main Authors: Kenneth Z. McKenna, Anna M. Kudla, H. Frederik Nijhout
Format: Article
Language:English
Published: Frontiers Media S.A. 2020-06-01
Series:Frontiers in Ecology and Evolution
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fevo.2020.00146/full
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author Kenneth Z. McKenna
Anna M. Kudla
H. Frederik Nijhout
author_facet Kenneth Z. McKenna
Anna M. Kudla
H. Frederik Nijhout
author_sort Kenneth Z. McKenna
collection DOAJ
description The color patterns on the wings of butterflies and moths are among the most complex manifestations of pattern formation in nature. The complexities of these patterns arise from the diversification of a conserved set of homologous elements known as the Nymphalid Ground Plan that can change color, shift position, expand, or disappear altogether. Recent work has shown that the anterior–posterior (AP) axis of the butterfly wing may also have an important role in the development and evolution of wing-pattern diversity. Here we characterize the AP axis by mapping expression domains of key regulatory genes onto the wing. We show that the butterfly wing can be subdivided into four primary regions, with the boundaries of these domains arising at the positions of the M1, M3, and Cu2 wing-veins. We find that the correlation among variation in the border ocelli is strongest for those within the same domain. We show how these domains may be used to determine phenotypic outcomes by surveying the frequency of color boundaries, tail development, and wing shape discontinuities across five major butterfly families: Lycaenidae, Nymphalidae, Papilionidae, Pieridae, and Riodinidae. Of the more than 200 genera we surveyed in this study, color pattern discontinuities emerge most often at the boundary veins M1, M3, and Cu2, and shape discontinuities and tails at veins M3 and Cu2. These findings reveal a hitherto unrecognized mode of evolution of patterning in the Lepidoptera.
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spelling doaj.art-6b8054ca6f784e29a0e787b5bfe7fc752022-12-21T22:49:05ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2020-06-01810.3389/fevo.2020.00146539138Anterior–Posterior Patterning in Lepidopteran WingsKenneth Z. McKenna0Anna M. Kudla1H. Frederik Nijhout2Division of Biological Sciences, Section of Cellular and Developmental Biology, University of California, San Diego, La Jolla, CA, United StatesDepartment of Biology, Duke University, Durham, NC, United StatesDepartment of Biology, Duke University, Durham, NC, United StatesThe color patterns on the wings of butterflies and moths are among the most complex manifestations of pattern formation in nature. The complexities of these patterns arise from the diversification of a conserved set of homologous elements known as the Nymphalid Ground Plan that can change color, shift position, expand, or disappear altogether. Recent work has shown that the anterior–posterior (AP) axis of the butterfly wing may also have an important role in the development and evolution of wing-pattern diversity. Here we characterize the AP axis by mapping expression domains of key regulatory genes onto the wing. We show that the butterfly wing can be subdivided into four primary regions, with the boundaries of these domains arising at the positions of the M1, M3, and Cu2 wing-veins. We find that the correlation among variation in the border ocelli is strongest for those within the same domain. We show how these domains may be used to determine phenotypic outcomes by surveying the frequency of color boundaries, tail development, and wing shape discontinuities across five major butterfly families: Lycaenidae, Nymphalidae, Papilionidae, Pieridae, and Riodinidae. Of the more than 200 genera we surveyed in this study, color pattern discontinuities emerge most often at the boundary veins M1, M3, and Cu2, and shape discontinuities and tails at veins M3 and Cu2. These findings reveal a hitherto unrecognized mode of evolution of patterning in the Lepidoptera.https://www.frontiersin.org/article/10.3389/fevo.2020.00146/fullexpression domainspattern diversitytailscolor boundariesnymphalid groundplan
spellingShingle Kenneth Z. McKenna
Anna M. Kudla
H. Frederik Nijhout
Anterior–Posterior Patterning in Lepidopteran Wings
Frontiers in Ecology and Evolution
expression domains
pattern diversity
tails
color boundaries
nymphalid groundplan
title Anterior–Posterior Patterning in Lepidopteran Wings
title_full Anterior–Posterior Patterning in Lepidopteran Wings
title_fullStr Anterior–Posterior Patterning in Lepidopteran Wings
title_full_unstemmed Anterior–Posterior Patterning in Lepidopteran Wings
title_short Anterior–Posterior Patterning in Lepidopteran Wings
title_sort anterior posterior patterning in lepidopteran wings
topic expression domains
pattern diversity
tails
color boundaries
nymphalid groundplan
url https://www.frontiersin.org/article/10.3389/fevo.2020.00146/full
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AT hfrederiknijhout anteriorposteriorpatterninginlepidopteranwings