FGSC #3424

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Reporting Genes: Iasc: Indurated ascus

Species: crassa

Allele: 29-405

Alternate Strain Number: 29-405-2

Mutagen: S

Depositor: AMS

Linkage Group: VR

Mating Type: a

Species Number: 10

Genetic Background: SL

ref1: Srb et al 1973 Brookhaven Symp Biol 25:40-50

ref2: Srb et al 1973 J Hered 64:242-246, https://doi.org/10.1093/oxfordjournals.jhered.a108404

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
Iasc	VR. (A.M. Srb, personal communication)Ascus wall hardens and darkens, so that the entire ascus resembles a giant ascospore. Pores are formed and striations appear. Asci are germinable. Mutant ascus phenotype is dominant with variable expression. Some asci are normal. Vegetative growth is weak (1008). Resembles the indurated ascus phenotype described in N. tetrasperma(285).	VR	B