Distinct positional identity at the center of the caudal fin establishes forked shape
Eric Surette, John Gablemann, Katherine Backus, Brendan Fitzgerald, Tho Nguyen, Deirdre McKenna, Carmen Sofia Uribe Calampa, Sarah K. McMenamin
The paper shows that distinct positional identities in zebrafish caudal fin rays determine their morphology, and altering these identities can change the fin shape.
bioRxiv · May 19, 2026 · PreprintDevelopmental Biology