FGSC #4556

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Reporting Genes: aro-1;met-7

Species: crassa

Allele: Y7655;4894

Alternate Strain Number: 162-17

Depositor: DDP

Linkage Group: IIR;VIIR

Mating Type: a

Species Number: 10

Opposite Mating Type: 4555

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
met-7	VIIR. Right of qa-2 (<1%), ars (<1%), and the centromere (one second-division ascus in several hundred). Left of met-9 (10[-4]) and wc-1 (1 to 4%) (146, 725; M.E. Case, personal communication). (718; M.K. Allen, cited in references 718 and 789) Uses cystathionine, homocysteine, or methionine (718; N. H. Horowitz, cited in reference 1180). Lacks cystathionine-gamma-synthase (547) (Fig. 17). This enzyme is also lacking in the mutant met-3 (547). See met-3 for regulation. Apparently contiguous with met-9by coconversion. Flanking markers are recombined in most met-7+ met-9+ recombinants (725). Functionally distinct from the mutant met-9, which has active cystathionine-gamma-synthase (547) but cannot use homocysteine. No mutants lacking both functions have been isolated. Allele NM251 is suppressible by supersuppressor RN33 (same as ssu-1?) (725). Allele K79 is inseparable from reciprocal translocation T(I;VII)K79 (808).	VIIR	B
aro-1	Requires a mix of trp+phe+tyr+paba. Grows poorly on shikimate when glucose or sucrose is the carbon source.	IIR	B