Movie S1.

A control female of M. punctatissima laying an egg mass with symbiont capsules.

Host’s guardian protein counters degenerative symbiont evolution

Ryuichi Koga, Masahiko Tanahashi, Naruo Nikoh, Takahiro Hosokawa, Xian-Ying Meng, Minoru Moriyama, and Takema Fukatsu

PNAS. 2021. 118:None-None DOI: 10.1073/pnas.2103957118