Updated single cell reference atlas for the starlet anemone Nematostella vectensis

Alison G. Cole, Julia Steger, Julia Hagauer, Andreas Denner, Patricio Ferrer Murguia, Paul Knabl, Sanjay Narayanaswamy, Brittney Wick, Juan D. Montenegro, Ulrich Technau

Publications: Contribution to journalArticlePeer Reviewed

Abstract

Background: The recent combination of genomics and single cell transcriptomics has allowed to assess a variety of non-conventional model organisms in much more depth. Single cell transcriptomes can uncover hidden cellular complexity and cell lineage relationships within organisms. The recent developmental cell atlases of the sea anemone Nematostella vectensis, a representative of the basally branching Cnidaria, has provided new insights into the development of all cell types (Steger et al Cell Rep 40(12):111370, 2022; Sebé-Pedrós et al. Cell 173(6):1520–1534.e20). However, the mapping of the single cell reads still suffers from relatively poor gene annotations and a draft genome consisting of many scaffolds. Results: Here we present a new wildtype resource of the developmental single cell atlas, by re-mapping of sequence data first published in Steger et al. (2022) and Cole et al. (Nat Commun 14(1):1747, 2023), to the new chromosome-level genome assembly and corresponding gene models in Zimmermann et al. (Nat Commun 14, 8270 (2023). https://doi.org/10.1038/s41467-023-44080-7). We expand the pre-existing dataset through the incorporation of additional sequence data derived from the capture and sequencing of cell suspensions from four additional samples: 24 h gastrula, 2d planula, an inter-parietal region of the bodywall from a young unsexed animal, and another adult mesentery from a mature male animal. Conclusion: Our analyses of the full cell-state inventory provide transcriptomic signatures for 127 distinct cell states, of which 47 correspond to neuroglandular subtypes. We also identify two distinct putatively immune-related transcriptomic profiles that segregate between the inner and outer cell layers. Furthermore, the new gene annotation Nv2 has markedly improved the mapping on the single cell transcriptome data and will therefore be of great value for the community and anyone using the dataset.

Original languageEnglish
Article number8
JournalFrontiers in Zoology
Volume21
DOIs
Publication statusE-pub ahead of print - 18 Mar 2024

Austrian Fields of Science 2012

  • 106010 Developmental biology
  • 106012 Evolutionary research
  • 106054 Zoology

Keywords

  • Cnidarian development
  • Neuronal inventory
  • scRNAseq
  • Transcriptomics

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