FGSC #9417

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Reporting Genes: sp;fr

Species: crassa

Allele: B1405,B110

Alternate Strain Number: OG52

Depositor: OG

Linkage Group: VR,IL

Species Number: 10

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
sp	VR. Between leu-5 (3 to 9%) and am (1 to 8%). Linked to cot-4 (11%) (122, 839, 1036). Grows initially as colonies that are flat on the surface, and then aerial mycelium fans upward (789). Photographs of allele B132 (278, 296). For ultrastructure and intraconidial conidia, see references cited in reference 1088. Cell wall analysis (278). Reduced amount of cell wall peptides (1165). Morphology similar to that of cot-4 (at 25 C), sn, and cum mutants (PB). Excellent female fertility. Used as lawn for mating type tests on plates (990).	VR	B
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