FGSC #103

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Reporting Genes: fr

Species: crassa

Allele: B110

Alternate Strain Number: 1253, ATCC 28604

Mutagen: UV

Depositor: DDP

Linkage Group: IL

Mating Type: A

Species Number: 10

Genetic Background: M

Opposite Mating Type: 102

ref1: Perkins 1959 Genetics 44:1185-1208, https://www.genetics.org/content/44/6/1185.long

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
fr	IL. Between ro-10 (18%) and un-5 (6%) (798, PB). (789)Delicate branching on agar surface and delicate aerial growth with no conidia (789). Multiple hyphal branching (382). Deficient in glucose- 6-phosphate dehydrogenase (as are col-2 and balmutants) (949, 952). Partially deficient in linolenic acid (115); morphology partially corrected by exogenous linolenic acid (892, 943). Low adenylate cyclase activity and low adenosine 3',5'-phosphate (943, 950). Used to determine what functions are controlled by adenosine 3',5'-phosphate (779). Unlike cr-1, fr is not corrected morphologically by exogenous cyclic nucleotides (892, 951). Scott (943) reported that morphology is corrected by theophylline; Rosenberg and Pall (892) reported no correction by phosphodiesterase inhibitors. Cell wall analysis; photograph (112, 278, 946). Reduced amount of cell wall peptides (1165). Recessive in duplications (808). Female sterile. Both known alleles (B110 and R2499) revert to fr+.	IL	B