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The MpCAFA gene encodes a ciliary protein required for spermatozoid motility in the liverwort Marchantia polymorpha.

Morita M, Yamato KT. · 2025 · Journal of plant research   research

doi:10.1007/s10265-025-01666-0   PMID:40841643

Linked genes (1)  1 core 0 peripheral

Gene ID	Name	Evidence / Role	Function (this paper)
Mp1g04120	MpCAFA	experimental subject	MpCAFA (Mp1g04120) encodes a ciliary protein with CAPS-like (EF-hand) and FAP115-like domains, expressed specifically in antheridia. Knockout mutants showed reduced spermatozoid swimming speed without morphological defects; MpCAFApro:MpCAFA-mCitrine complemented the phenotype and localized along the two spermatozoid cilia. Both domains are required for function/localization and the C-terminal proline-rich region for function, indicating MpCAFA is required for spermatozoid motility.