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Another meth A17 suppressor of Aspergillus nidulans

Tania M.A. Domingues Zucchi

Departamento de Parasitologia, Instituto de Ciências Biomédicas - USP, Av. Prof. Linen Prestes, 1374, 05508 São Paulo, SP, Brasil

ABSTRACT

Mutant 24 was selected by Zucchi (Rev. Bras. Genet. 13: 409-424, 1990) for its apparently high recombination frequency in the meth-w interval of chromosome II. It was demonstrated that some of the alterations shown by meiotic and mitotic analysis were due to a meth A₁₇ recessive suppressor located on chromosome V, linked to the locus sB₃. Recombination analysis was difficult because of the presence of an anti-suppressor mutation in chromosome III of mutant 24 that acts more effectively when combined with a factor of chromosome I of the non-related strain UT184.

Keywords: Meth A17 suppressor; Aspergillus nidulans.

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