FGSC #507

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Reporting Genes: sn

Species: crassa

Allele: C136

Alternate Strain Number: C136 R 3A

Mutagen: S

Depositor: MBM

Linkage Group: IC

Mating Type: A

Species Number: 10

Genetic Background: M

Opposite Mating Type: 947

ref1: Mitchell MB 1959. Genetics 44:847-856, PMID: 17247863

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
sn	I. Right of T(39311) and arg-3 (1 to 6%). Left of T(AR173) and his-2 (<1 to 12%) (174, 808). (687) Spreading colonial growth with good conidiation. Linear growth is less than 1/10 that of the wild type (19). Detectable immediately after ascospore germination by hyphal patterns which suggested the name (688). Abnormal microfilaments (19). Contains actin-like protein (20). Said not to exhibit cytoplasmic streaming (18). Meiosis and ascospore formation are normal in homozygous sn x sn crosses (N.B. Raju, personal communication). Good female fertility. Morphology similar to that of sp, cum, and cot-4mutants (at 25 C) (PB). Used to study development of crystalline inclusions (17). The cr sn double mutant grows as small, discrete, conidiating colonies suitable for velvet replication. The double mutant cr snresembles the rg cr double mutant phenotypically and has the advantage of fertility in homozygous crosses (796); for example of application, see reference 180.	IR	B