FGSC #4276

Reporting Genes: fpr-6

Species: crassa

Allele: UM-300

Alternate Strain Number: UM-300a

Depositor: RHD

Linkage Group: VIR

Mating Type: a

Species Number: 10

Opposite Mating Type: 4275

ref1: Davis & Zimerman 1965 Genetics 52:439 (Abstr)

Genes

Locus	Cultural Requirements	Link Group	Type
fpr-6	VIR. Between pan-2 and trp-2 (247). Resistant to p-fluorophenylalanine. The only allele, UM300, was found in a variant unable to take up arginine to satisfy requirement of arg mutations. This blockage is manifest mainly when ammonium is in the medium. Uptake of many other metabolites (amino acids, uridine, sugars) is also affected. Primary defect unknown (247; R. H. Davis, personal communication). Called UM300 or fpr(UM300). Not tested for allelism with mts or mod-5, which map in the same area and cause increased rather than decreased uptake.	VIR	B

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