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  Many ways to make darker flies: Intra‐ and interspecific variation in Drosophila body pigmentation components

Lafuente, E., Alves, F., King, J. G., Peralta, C. M., & Beldade, P. (2021). Many ways to make darker flies: Intra‐ and interspecific variation in Drosophila body pigmentation components. Ecology and Evolution, 11, 8136-8155. doi:10.1002/ece3.7646.

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 Creators:
Lafuente, Elvira, Author
Alves, Filipa, Author
King, Jessica G., Author
Peralta, Carolina M.1, 2, Author                 
Beldade, Patrícia, Author
Affiliations:
1Max Planck Research Group Biological Clocks (Kaiser), Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_2355691              
2IMPRS for Evolutionary Biology, Max Planck Institute for Evolutionary Biology, Max Planck Society, ou_1445639              

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Free keywords: decomposing phenotypes, developmental plasticity, genetic and environmental variance, quantitative phenotyping, thermal plasticity
 Abstract: Body pigmentation is an evolutionarily diversified and ecologically relevant trait with substantial variation within and between species, and important roles in animal sur-vival and reproduction. Insect pigmentation, in particular, provides some of the most compelling examples of adaptive evolution, including its ecological significance and genetic bases. Pigmentation includes multiple aspects of color and color pattern that may vary more or less independently, and can be under different selective pressures. We decompose Drosophila thorax and abdominal pigmentation, a valuable eco-evo- devo model, into distinct measurable traits related to color and color pattern. We investigate intra- and interspecific variation for those traits and assess its different sources. For each body part, we measured overall darkness, as well as four other pigmentation properties distinguishing between background color and color of the darker pattern elements that decorate each body part. By focusing on two stand-ard D. melanogaster laboratory populations, we show that pigmentation components vary and covary in distinct manners depending on sex, genetic background, and tem-perature during development. Studying three natural populations of D. melanogasteralong a latitudinal cline and five other Drosophila species, we then show that evo-lution of lighter or darker bodies can be achieved by changing distinct component traits. Our results paint a much more complex picture of body pigmentation varia-tion than previous studies could uncover, including patterns of sexual dimorphism, thermal plasticity, and interspecific diversity. These findings underscore the value of detailed quantitative phenotyping and analysis of different sources of variation for a better understanding of phenotypic variation and diversification, and the ecological pressures and genetic mechanisms underlying them.

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Language(s): eng - English
 Dates: 2021-04-142021-04-032021-04-182021-05-252021-06
 Publication Status: Issued
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 Publishing info: -
 Table of Contents: -
 Rev. Type: -
 Identifiers: DOI: 10.1002/ece3.7646
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Title: Ecology and Evolution
Source Genre: Journal
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Publ. Info: John Wiley & Sons, Inc.
Pages: - Volume / Issue: 11 Sequence Number: - Start / End Page: 8136 - 8155 Identifier: ISSN: 2045-7758
CoNE: https://pure.mpg.de/cone/journals/resource/2045-7758