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Evolutionary history of the recruitment of conserved developmental genes in association to the formation and diversification of a novel trait
Publication . Shirai, Leila T; Saenko, Suzanne V; Keller, Roberto A; Jeronimo, Maria A; Brakefield, Paul M; Descimon, Henri; Wahlberg, Niklas; Beldade, Patricia
The origin and modification of novel traits are important aspects of biological diversification. Studies combining concepts and approaches of developmental genetics and evolutionary biology have uncovered many examples of the recruitment, or co-option, of genes conserved across lineages for the formation of novel, lineage-restricted traits. However, little is known about the evolutionary history of the recruitment of those genes, and of the relationship between them -for example, whether the co-option involves whole or parts of existing networks, or whether it occurs by redeployment of individual genes with de novo rewiring. We use a model novel trait, color pattern elements on butterfly wings called eyespots, to explore these questions. Eyespots have greatly diversified under natural and sexual selection, and their formation involves genetic circuitries shared across insects.

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Wellcome Trust

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099808

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