The Arctiid Archetype: A New Lepidopteran Groundplan

The nymphalid groundplan (NGP) has proven to be extraordinarily useful in the study of butterfly color patterns because it allows for the identification of homologous elements across species. It has long been thought that the NGP is broadly applicable to all Lepidoptera, implying that the characters...

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Main Authors: Richard Gawne, 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.2020.00175/full
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author Richard Gawne
H. Frederik Nijhout
author_facet Richard Gawne
H. Frederik Nijhout
author_sort Richard Gawne
collection DOAJ
description The nymphalid groundplan (NGP) has proven to be extraordinarily useful in the study of butterfly color patterns because it allows for the identification of homologous elements across species. It has long been thought that the NGP is broadly applicable to all Lepidoptera, implying that the characters which make-up butterfly color patterns are homologous to those found in the moths. However, this conjecture remains mostly untested. We analyzed the wing patterns of the hyper-diverse arctiid tiger moths, which are represented worldwide by approximately 11,000 species, and found that the color patterns of these animals can be parsed into a limited toolkit of homologous characters. Some of the pattern elements identified, such as the basal and central symmetry system, are present on the NGP, but their morphology is often quite different from what is seen in the butterflies. The border ocelli of the NGP appear to be absent altogether in the Arctiidae, and conversely, two distal pattern element we term the “van Bemmelen” and “terminal” bands are present in the color patterns of many arctiids, but are not represented on the NGP. In light of the observed differences, we derive a new theoretical groundplan based on the original NGP that we refer to as the “arctiid archetype.” This model provides a comprehensive framework for understanding how the wing patterns of these animals develop, and yields novel insight into their evolutionary history.
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spelling doaj.art-b6f76eb3b3e84f4080f9b292d834a24f2022-12-22T00:25:27ZengFrontiers Media S.A.Frontiers in Ecology and Evolution2296-701X2020-06-01810.3389/fevo.2020.00175539369The Arctiid Archetype: A New Lepidopteran GroundplanRichard Gawne0H. Frederik Nijhout1Allen Discovery Center, Tufts University, Medford, MA, United StatesDepartment of Biology, Duke University, Durham, NC, United StatesThe nymphalid groundplan (NGP) has proven to be extraordinarily useful in the study of butterfly color patterns because it allows for the identification of homologous elements across species. It has long been thought that the NGP is broadly applicable to all Lepidoptera, implying that the characters which make-up butterfly color patterns are homologous to those found in the moths. However, this conjecture remains mostly untested. We analyzed the wing patterns of the hyper-diverse arctiid tiger moths, which are represented worldwide by approximately 11,000 species, and found that the color patterns of these animals can be parsed into a limited toolkit of homologous characters. Some of the pattern elements identified, such as the basal and central symmetry system, are present on the NGP, but their morphology is often quite different from what is seen in the butterflies. The border ocelli of the NGP appear to be absent altogether in the Arctiidae, and conversely, two distal pattern element we term the “van Bemmelen” and “terminal” bands are present in the color patterns of many arctiids, but are not represented on the NGP. In light of the observed differences, we derive a new theoretical groundplan based on the original NGP that we refer to as the “arctiid archetype.” This model provides a comprehensive framework for understanding how the wing patterns of these animals develop, and yields novel insight into their evolutionary history.https://www.frontiersin.org/article/10.3389/fevo.2020.00175/fullcolor pattern evolution and developmentnymphalid groundplanarctiid archetypeArctiidaearctiid mothstiger moths
spellingShingle Richard Gawne
H. Frederik Nijhout
The Arctiid Archetype: A New Lepidopteran Groundplan
Frontiers in Ecology and Evolution
color pattern evolution and development
nymphalid groundplan
arctiid archetype
Arctiidae
arctiid moths
tiger moths
title The Arctiid Archetype: A New Lepidopteran Groundplan
title_full The Arctiid Archetype: A New Lepidopteran Groundplan
title_fullStr The Arctiid Archetype: A New Lepidopteran Groundplan
title_full_unstemmed The Arctiid Archetype: A New Lepidopteran Groundplan
title_short The Arctiid Archetype: A New Lepidopteran Groundplan
title_sort arctiid archetype a new lepidopteran groundplan
topic color pattern evolution and development
nymphalid groundplan
arctiid archetype
Arctiidae
arctiid moths
tiger moths
url https://www.frontiersin.org/article/10.3389/fevo.2020.00175/full
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