Ancestral secretory programs underlie the evolution of morphological innovations across Spiralia
Yitian Bai, Biyang Hu, Kunyin Jiang, Hong Yu, Lingfeng Kong, Shikai Liu, Qi Li
This study identifies shell-forming cell types in Pacific oysters and shows they evolved from ancestral epithelial-secretory systems in Spiralia.
bioRxiv · Sep 30, 2026 · PreprintEvolutionary Biology