Whole-body integration of gene expression and single-cell morphology

Hernando M. Vergara, Constantin Pape, Kimberly I. Meechan, Valentyna Zinchenko, Christel Genoud, Adrian A. Wanner, Kevin Nzumbi Mutemi, Benjamin Titze, Rachel M. Templin, Paola Y. Bertucci, Oleg Simakov, Wiebke Dürichen, Pedro Machado, Emily L. Savage, Lothar Schermelleh, Yannick Schwab*, Rainer W. Friedrich, Anna Kreshuk, Christian Tischer, Detlev Arendt

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

40 Citations (Scopus)

Abstract

Animal bodies are composed of cell types with unique expression programs that implement their distinct locations, shapes, structures, and functions. Based on these properties, cell types assemble into specific tissues and organs. To systematically explore the link between cell-type-specific gene expression and morphology, we registered an expression atlas to a whole-body electron microscopy volume of the nereid Platynereis dumerilii. Automated segmentation of cells and nuclei identifies major cell classes and establishes a link between gene activation, chromatin topography, and nuclear size. Clustering of segmented cells according to gene expression reveals spatially coherent tissues. In the brain, genetically defined groups of neurons match ganglionic nuclei with coherent projections. Besides interneurons, we uncover sensory-neurosecretory cells in the nereid mushroom bodies, which thus qualify as sensory organs. They furthermore resemble the vertebrate telencephalon by molecular anatomy. We provide an integrated browser as a Fiji plugin for remote exploration of all available multimodal datasets.

Original languageEnglish
Pages (from-to)4819-4837.e22
JournalCell
Volume184
Issue number18
DOIs
Publication statusPublished - 2 Sept 2021

Keywords

  • automatic segmentation
  • cell types
  • gene expression atlas
  • image registration
  • machine learning
  • multimodal data integration
  • mushroom bodies
  • Platynereis dumerilii
  • telencephalon
  • volume electron microscopy

Fingerprint

Dive into the research topics of 'Whole-body integration of gene expression and single-cell morphology'. Together they form a unique fingerprint.

Cite this