FGSC #72

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Reporting Genes: pyr-1

Species: crassa

Allele: H263

Alternate Strain Number: 4034

Mutagen: X

Depositor: DDP

Linkage Group: IVR

Mating Type: A

Species Number: 10

Genetic Background: M

Opposite Mating Type: 85

ref1: Maling 1959 Genetics 44:1215-1220, https://www.genetics.org/content/44/6/1215.long

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
pyr-1	IVR. Right of psi (4%) and T(ALS159) (808, PB). Left of pdx-1 (<1 to 10%) (692). (482) Requires uracil or other pyrimidine. Lacks dihydroorotate dehydrogenase activity (133, 134) (Fig. 20). All ascospores from pyr-1 x pyr-1crosses are white if cross is on medium containing 0.1 mg of uracil per ml; they are black if the cross is on medium containing 1.0 mg/ml (632).	IVR	B