Fig. 7: Summary of the relative cellular composition of different colony parts.
From: The Hydractinia cell atlas reveals cellular and molecular principles of cnidarian coloniality
Reproductive polyps (gonozooids) are enriched in germ cells. Feeding polyps (gastrozooids) are enriched in cells that contribute to allorecognition and stinging relative to gonozooids. Stolons are similar to feeding polyps with respect to allorecognition and stinging but are also enriched in cells contributing to biomineralization and attachment to the substratum. i-cells, epithelial cells, epitheliomuscular cells, and neurones have similar proportions in all colony parts.
