FGSC #3884

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Reporting Genes: ipa

Species: crassa

Allele: BVS7

Alternate Strain Number: B1592-1a

Mutagen: S

Depositor: EGB

Linkage Group: IL

Mating Type: a

Species Number: 10

Genetic Background: M

Opposite Mating Type: 3883

ref1: Smith & Barry 1966 Genetics 54:363 (Abstr)

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
ipa	IL. Between mt (20%) and arg-1 (1%) (994; E.G. Barry, personal communication).Hyphae from germinating ascospores or conidia grow for long distances without branching. Cultures thus are 1 day late growing up (E.G. Barry, personal communication). Modifies pro-3. Double mutant pro-3;ipa does not respond to arginine and grows less well than the single mutant pro-3;ipa+ on proline, citrulline, or ornithine. The single mutant ipa grows on minimal medium at half the wild-type rate. Arginine uptake is normal: arg-2;ipa or arg-5;ipa double mutants can grow on arginine. Inhibition studies suggest that ipamay be unable to shunt exogenous arginine into the proline pathway (994).	IL	B