The meiosis‐specific APC activator FgAMA1 is dispensable for meiosis but important for ascosporogenesis in Fusarium graminearum

What is it about?

Like its yeast ortholog Ama1, a meiosis-specific activator of APC/C, FgAMA1 was specifically expressed during sexual reproduction and required RNA editing to encode the full-length protein. The Fgama1 deletion mutant was defective only in ascospore morphology, budding, and discharge. Meiotic silencing of FgAMA1 also resulted in the formation asci with 8 mutant or intermediate ascospores, indicating that FgAMA1 is dispensable for meiosis but important for ascospore formation and discharge.

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