An intact primordial interferon antiviral signalling network in amphioxus illuminates the basal chordate origin of vertebrate IFN immunity
Jingyuan Lin, Yilin Han, Huijuan Yang, Meng Yang, Guangdong Ji, Chen Sun, Zhenhui Liu
This paper identifies an intact primordial interferon signaling network in amphioxus, showing that IFN immunity originated in basal chordates before vertebrates.
bioRxiv · Aug 21, 2026 · PreprintEvolutionary Biology