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Genes with spiralian-specific protein motifs are expressed in spiralian ciliary bands

Author

Listed:
  • Longjun Wu

    (University of Rochester
    Yale University)

  • Laurel S. Hiebert

    (University of Oregon
    University of California, Santa Barbara)

  • Marleen Klann

    (University of Florida
    University of Sussex)

  • Yale Passamaneck

    (University of Florida
    University of Hawaii)

  • Benjamin R. Bastin

    (Iowa State University)

  • Stephan Q. Schneider

    (Iowa State University
    Institute of Cellular and Organismic Biology)

  • Mark Q. Martindale

    (University of Florida
    University of Hawaii)

  • Elaine C. Seaver

    (University of Florida)

  • Svetlana A. Maslakova

    (University of Oregon)

  • J. David Lambert

    (University of Rochester)

Abstract

Spiralia is a large, ancient and diverse clade of animals, with a conserved early developmental program but diverse larval and adult morphologies. One trait shared by many spiralians is the presence of ciliary bands used for locomotion and feeding. To learn more about spiralian-specific traits we have examined the expression of 20 genes with protein motifs that are strongly conserved within the Spiralia, but not detectable outside of it. Here, we show that two of these are specifically expressed in the main ciliary band of the mollusc Tritia (also known as Ilyanassa). Their expression patterns in representative species from five more spiralian phyla—the annelids, nemerteans, phoronids, brachiopods and rotifers—show that at least one of these, lophotrochin, has a conserved and specific role in particular ciliated structures, most consistently in ciliary bands. These results highlight the potential importance of lineage-specific genes or protein motifs for understanding traits shared across ancient lineages.

Suggested Citation

  • Longjun Wu & Laurel S. Hiebert & Marleen Klann & Yale Passamaneck & Benjamin R. Bastin & Stephan Q. Schneider & Mark Q. Martindale & Elaine C. Seaver & Svetlana A. Maslakova & J. David Lambert, 2020. "Genes with spiralian-specific protein motifs are expressed in spiralian ciliary bands," Nature Communications, Nature, vol. 11(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17780-7
    DOI: 10.1038/s41467-020-17780-7
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