FGSC #7196

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Reporting Genes: arg-12 ure-3 un-20

Species: crassa

Allele: UN107 F29 P2402

Alternate Strain Number: 2266

Depositor: DDP

Linkage Group: IIR IIR IIR

Mating Type: a

Species Number: 10

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
arg-12	Uses arginine or citrulline.	IIR	B
un-20	IIR. Between ff-1 (4%) and ace-1 (15%). Right of aro-1(5 to 9%). (816, 1052, PB). Unknown function. Heat sensitive, 39°C versus 25°C. Best scored at 39°C on minimal medium. Leaky. Some flat, aconidiate unpigmented growth occurs even at restrictive temperatures (PB). Called mo(P2402t) (816, 1052).	IIR	B
ure-3	IIR. Between arg-12 (7 to 12%) and ace-1 (14%) (PB). Allele B1 is closely linked to translocation T(IR;II)B1 in the original strain. Consequently, ure-3 was at first assigned incorrectly to IR (78, 452). Point-mutant allele F29 shows linkage in IIR, not in IR (PB). No urease activity (452) (Fig. 10 and 24). Some revertants show altered urease thermostability, suggesting a structural role (78). For scoring methods, see ure.	IIR	B