FGSC #5058

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Reporting Genes: his-2 nic-2

Species: crassa

Allele: C94 43002

Alternate Strain Number: 74-OR17-24a

Depositor: FJD

Linkage Group: IR IR

Mating Type: a

Species Number: 10

Genetic Background: SL

Opposite Mating Type: 5059

Deposit Sheet ↗

Genes

Locus	Cultural Requirements	Link Group	Type
his-2	IR. Right of T(AR190) and un-2 (<1%). Left of the T(AR173) right breakpoint and of nuc-1 (<1%) (172, 670, 808). (434)Requires histidine (434). Affects adenosine 5'-triphosphate phosphoribosylpyrophosphate pyrophosphorylase (16) (Fig. 14). Intralocus complementation (162). Recombination between his-2 alleles is controlled by rec-3(173); it is not affected by rec-1 (172). Initial his-2 allele called C94.	IR	B
nic-2	IR. Between ad-3B (4%) and ace-7 (4 to 7%) (271, 578). (482) Grows on nicotinic acid, nicotinamide, or high concentrations of quinolinic acid (97, 1168). Cannot use kynurenine, hydroxykynurenine, or hydroxyanthranilic acid (96, 1168). Accumulates 3-hydroxyanthranilic acid (96) (Fig. 18). Aging cultures accumulate red-brown pigment in the medium. Used to study intralocus recombination (908). Translocations T(4540) and T(S1325)are inseparable from nic-2 (808, 908, 911).	IR	B