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Rapid adaptation to food availability by a dopamine-mediated morphogenetic response

Author

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  • Diane K. Adams

    (National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Building 30 Room 523, Bethesda, Maryland 20892 USA.)

  • Mary A. Sewell

    (School of Biological Sciences, University of Auckland)

  • Robert C. Angerer

    (National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Building 30 Room 523, Bethesda, Maryland 20892 USA.)

  • Lynne M. Angerer

    (National Institute of Dental and Craniofacial Research, National Institutes of Health, 30 Convent Drive, Building 30 Room 523, Bethesda, Maryland 20892 USA.)

Abstract

Food can act as a powerful stimulus, eliciting metabolic, behavioural and developmental responses. These phenotypic changes can alter ecological and evolutionary processes; yet, the molecular mechanisms underlying many plastic phenotypic responses remain unknown. Here we show that dopamine signalling through a type-D2 receptor mediates developmental plasticity by regulating arm length in pre-feeding sea urchin larvae in response to food availability. Although prey-induced traits are often thought to improve food acquisition, the mechanism underlying this plastic response acts to reduce feeding structure size and subsequent feeding rate. Consequently, the developmental programme and/or maternal provisioning predetermine the maximum possible feeding rate, and food-induced dopamine signalling reduces food acquisition potential during periods of abundant resources to preserve maternal energetic reserves. Sea urchin larvae may have co-opted the widespread use of food-induced dopamine signalling from behavioural responses to instead alter their development.

Suggested Citation

  • Diane K. Adams & Mary A. Sewell & Robert C. Angerer & Lynne M. Angerer, 2011. "Rapid adaptation to food availability by a dopamine-mediated morphogenetic response," Nature Communications, Nature, vol. 2(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:2:y:2011:i:1:d:10.1038_ncomms1603
    DOI: 10.1038/ncomms1603
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    Cited by:

    1. Junko Yaguchi & Kazumi Sakai & Atsushi Horiuchi & Takashi Yamamoto & Takahiro Yamashita & Shunsuke Yaguchi, 2024. "Light-modulated neural control of sphincter regulation in the evolution of through-gut," Nature Communications, Nature, vol. 15(1), pages 1-14, December.

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