FGSC #7349

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Reporting Genes: thi-1 ad-9 nit-1 het-5PA

Species: crassa

Allele: 56501 Y154M37 34547 PA

Alternate Strain Number: DJ947-25a

Depositor: DJJ

Linkage Group: IR

Mating Type: a

Species Number: 10

Genetic Background: SL9

Opposite Mating Type: 7348

ref1: Perkins, Leslie and Jacobson 1993 FGN 40, https://doi.org/10.4148/1941-4765.1419

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
ad-9	IR. Right of met-6 (9 to 16%). Left of Tp(T54M94) and nit-1 (3 to 15%) (466, 816). (815) Uses adenine or hypoxanthine (526). Controls conversion of phosphoribosylglycineamide to phosphoribosylformylglycineamide (120) (Fig. 8). Called complementation group D.	IR	B
het-5PA	IR. Between T(NM103) and the tip; hence, right of thi-1 (729).Vegetative incompatibility recognized by inhibited duplications and subsequently confirmed by heterokaryon tests (729, 730).	IR	B
nit-1	IR. Right of Tp(T54M94) and ad-9 (3 to 15%). Left of cyh-1(6%) (466, 496, 816). (482)Cannot use nitrate or hypoxanthine as a nitrogen source, but uses nitrite, ammonia, or amino acids (1000). Does not prevent formation or nitrate reductase apoprotein (999), but lacks the molybdenum-containing cofactor common to nitrate reductase and xanthine dehydrogenase (591, 741) (Fig. 19 and 24). The nitrate reductase in nit-1 extracts does not catalyze the complete electron transport sequence from NADPH to N03 but does catalyze the initial part of this sequence if a suitable electron acceptor (e.g., cytochrome c) is provided (999). See reference 198 for a model of interaction of nit-1 and nit-3 gene products. See references 226, 999, and 1000 for regulation.	IR	B
thi-1	IR. Right of the T(4540) right breakpoint and cys-9 (13%). Left of T(NM103), T(ALS182), and met-6 (7 to 14%) (721, 808, 816, 1091). (482). Uses thiamine or precursors pyrimidine plus thiazole (1059). Adaptation to growth on minimal medium occurs after a lag; growth tests should, therefore, be scored early. Adaptation is not carried over via ascospores, conidia, or small mycelial fragments. Adaptive growth is paralleled by attainment of wild-type thiamine pyrophosphate and carboxylase levels. Apparently concerns utilization of intact thiamine rather than its biosynthesis. (302, 303). Allele 17084 is inseparable from translocation T(IR;VII)17084 (808).	IR	B