FGSC #2141

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Reporting Genes: pyr-6

Species: crassa

Allele: DFC37

Alternate Strain Number: 5196

Mutagen: NG

Depositor: DDP

Linkage Group: VR

Mating Type: A

Species Number: 10

Genetic Background: SL

Opposite Mating Type: 2111

ref1: D. F. Caroline J. Bact 100:1375 1969 XC7, https://doi.org/10.1128/jb.100.3.1371-1377.1969

ref2: XC8, https://doi.org/10.1128/jb.100.3.1378-1384.1969

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
pyr-6	VR. Between asn (6%) and un-9 (2%) (156, 818). (133, 134) Requires uracil or other pyrimidine. Lacks dihydroorotase activity (133, 134) (Fig. 20). On a small amount of uridine, a strain(s) carrying the only allele (DFC37) grows, after a pause, well beyond the level normally supported by the supplement; at no time is dihydroorotase detectable (134).	VR	B