Evolution of novel mimicry rings facilitated by adaptive introgression in tropical butterflies

Juan Enciso-Romero, Carolina Pardo-Díaz, Simon H Martin, Carlos F Arias, Mauricio Linares, W Owen McMillan, Chris D Jiggins, Camilo Salazar

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Understanding the genetic basis of phenotypic variation and the mechanisms involved in the evolution of adaptive novelty, especially in adaptive radiations, is a major goal in evolutionary biology. Here, we used whole genome sequence data to investigate the origin of the yellow hindwing bar in the Heliconius cydno radiation. We found modular variation associated with hindwing phenotype in two narrow non-coding regions upstream and downstream of the cortex gene, which was recently identified as a pigmentation pattern controller in multiple species of Heliconius. Genetic variation at each of these modules suggests an independent control of the dorsal and ventral hindwing patterning, with the upstream module associated with the ventral phenotype and the downstream module with the dorsal one. Furthermore, we detected introgression between H. cydno and its closely related species H. melpomene in these modules, likely allowing both species to participate in novel mimicry rings. In sum, our findings support the role of regulatory modularity coupled with adaptive introgression as an elegant mechanism by which novel phenotypic combinations can evolve and fuel an adaptive radiation. This article is protected by copyright. All rights reserved.

Original languageEnglish (US)
JournalMolecular Ecology
DOIs
StatePublished - Aug 4 2017

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Heliconius
mimicry (behavior)
Butterflies
mimicry
adaptive radiation
introgression
butterfly
butterflies
Melpomene
Radiation
phenotype
controllers
phenotypic variation
pigmentation
Phenotype
cortex
evolutionary biology
Pigmentation
Biological Sciences
genetic variation

Cite this

@article{b7494fde6ccb4847a213431349bec93c,
title = "Evolution of novel mimicry rings facilitated by adaptive introgression in tropical butterflies",
abstract = "Understanding the genetic basis of phenotypic variation and the mechanisms involved in the evolution of adaptive novelty, especially in adaptive radiations, is a major goal in evolutionary biology. Here, we used whole genome sequence data to investigate the origin of the yellow hindwing bar in the Heliconius cydno radiation. We found modular variation associated with hindwing phenotype in two narrow non-coding regions upstream and downstream of the cortex gene, which was recently identified as a pigmentation pattern controller in multiple species of Heliconius. Genetic variation at each of these modules suggests an independent control of the dorsal and ventral hindwing patterning, with the upstream module associated with the ventral phenotype and the downstream module with the dorsal one. Furthermore, we detected introgression between H. cydno and its closely related species H. melpomene in these modules, likely allowing both species to participate in novel mimicry rings. In sum, our findings support the role of regulatory modularity coupled with adaptive introgression as an elegant mechanism by which novel phenotypic combinations can evolve and fuel an adaptive radiation. This article is protected by copyright. All rights reserved.",
author = "Juan Enciso-Romero and Carolina Pardo-D{\'i}az and Martin, {Simon H} and Arias, {Carlos F} and Mauricio Linares and McMillan, {W Owen} and Jiggins, {Chris D} and Camilo Salazar",
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month = "8",
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doi = "10.1111/mec.14277",
language = "English (US)",
journal = "Molecular Ecology",
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Evolution of novel mimicry rings facilitated by adaptive introgression in tropical butterflies. / Enciso-Romero, Juan; Pardo-Díaz, Carolina; Martin, Simon H; Arias, Carlos F; Linares, Mauricio; McMillan, W Owen; Jiggins, Chris D; Salazar, Camilo.

In: Molecular Ecology, 04.08.2017.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Evolution of novel mimicry rings facilitated by adaptive introgression in tropical butterflies

AU - Enciso-Romero, Juan

AU - Pardo-Díaz, Carolina

AU - Martin, Simon H

AU - Arias, Carlos F

AU - Linares, Mauricio

AU - McMillan, W Owen

AU - Jiggins, Chris D

AU - Salazar, Camilo

N1 - This article is protected by copyright. All rights reserved.

PY - 2017/8/4

Y1 - 2017/8/4

N2 - Understanding the genetic basis of phenotypic variation and the mechanisms involved in the evolution of adaptive novelty, especially in adaptive radiations, is a major goal in evolutionary biology. Here, we used whole genome sequence data to investigate the origin of the yellow hindwing bar in the Heliconius cydno radiation. We found modular variation associated with hindwing phenotype in two narrow non-coding regions upstream and downstream of the cortex gene, which was recently identified as a pigmentation pattern controller in multiple species of Heliconius. Genetic variation at each of these modules suggests an independent control of the dorsal and ventral hindwing patterning, with the upstream module associated with the ventral phenotype and the downstream module with the dorsal one. Furthermore, we detected introgression between H. cydno and its closely related species H. melpomene in these modules, likely allowing both species to participate in novel mimicry rings. In sum, our findings support the role of regulatory modularity coupled with adaptive introgression as an elegant mechanism by which novel phenotypic combinations can evolve and fuel an adaptive radiation. This article is protected by copyright. All rights reserved.

AB - Understanding the genetic basis of phenotypic variation and the mechanisms involved in the evolution of adaptive novelty, especially in adaptive radiations, is a major goal in evolutionary biology. Here, we used whole genome sequence data to investigate the origin of the yellow hindwing bar in the Heliconius cydno radiation. We found modular variation associated with hindwing phenotype in two narrow non-coding regions upstream and downstream of the cortex gene, which was recently identified as a pigmentation pattern controller in multiple species of Heliconius. Genetic variation at each of these modules suggests an independent control of the dorsal and ventral hindwing patterning, with the upstream module associated with the ventral phenotype and the downstream module with the dorsal one. Furthermore, we detected introgression between H. cydno and its closely related species H. melpomene in these modules, likely allowing both species to participate in novel mimicry rings. In sum, our findings support the role of regulatory modularity coupled with adaptive introgression as an elegant mechanism by which novel phenotypic combinations can evolve and fuel an adaptive radiation. This article is protected by copyright. All rights reserved.

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