1069-Adaptive Cellular Evolution in the Cichlid Intestine

Paper Talk · Jun 2, 2026 · 23m

Researchers investigated the cellular and molecular mechanisms behind dietary adaptation in Tanganyikan cichlid fishes using comprehensive single-cell transcriptomic data. By analyzing 24 distinct species, the study revealed that rapid trophic specialization primarily targets anterior enterocytes, which are absorptive cells located in the front of the intestine. These evolutionary changes involve both the relative abundance of specific cell types and unique gene expression profiles that have shifted to accommodate different food sources. The findings indicate that these digestive adaptations…