FGSC #306

Reporting Genes: amyc

Species: crassa

Allele: K422

Alternate Strain Number: 1181

Depositor: DDP

Linkage Group: IL

Mating Type: a

Species Number: 10

Genetic Background: SL3

Opposite Mating Type: 305

ref1: Perkins 1959 Genetics 44:1185-1208, DDP 7/18/1960

Genes

Locus	Cultural Requirements	Link Group	Type
amyc	IL. Between ad-5 and the centromere (H.B. Howe, Jr., personal communication). (K.C. Atwood, cited in reference 789) Conditional morphological mutant. Recessive. On sucrose media, it forms dotlike granular colonies of irregular budding vesicular elements. On permissive media, made either with acetate (plus alpha-ketoglutarate, succinate, malate, or certain amino acids) or with amino acids as carbon and nitrogen sources, it forms hyphae and macroconidia but is apparently still colonial (281; for a review, see reference 1088). Adenosine 3',5'-monophosphate induces conidiation even on sucrose (281). Photographs (774, 1088). Low oxygen consumption and depressed amino acid pools (1281). Abnormal mitochondria (773). Surface glycopeptide (281). Wall composition (207). Recovery of the antigenic arc representing the isozyme of malate dehydrogenase associated with conidiation (784). Ultrastructure (773, 1088, 1089 and references cited therein). Used extensively in balanced heterokaryons to detect lethal recessive mutations (e.g., reference 32) and to evaluate nuclear distribution (33); techniques described (34).	IL	B

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