FGSC #2206

Reporting Genes: uc-2;pyr-1

Species: crassa

Allele: RW135;H263

Depositor: LGW

Linkage Group: I;IVR

Mating Type: a

Species Number: 10

ref1: Williams and Mitchell 1969. J. Bact. 100:383-389, https://doi.org/10.1128/jb.100.1.383-389.1969

Genes

Locus	Cultural Requirements	Link Group	Type
pyr-1	IVR. Right of psi (4%) and T(ALS159) (808, PB). Left of pdx-1 (<1 to 10%) (692). (482) Requires uracil or other pyrimidine. Lacks dihydroorotate dehydrogenase activity (133, 134) (Fig. 20). All ascospores from pyr-1 x pyr-1crosses are white if cross is on medium containing 0.1 mg of uracil per ml; they are black if the cross is on medium containing 1.0 mg/ml (632).	IVR	B
uc-2	I. Linked to mt (0/12 asci) (1139, 1141).Thymidine salvage pathway defect (Fig. 23). Unable to use thymidine or deoxyuridine, but can use thymine, 5-hydroxymethyluracil, 5-formyluracil, uracil, or uridine as the sole pyrimidine source for pyr-4when uc-1is also present (1141). Reduced activity of the 2'-hydroxylase reactions thymidine -> thymine ribonucleoside and deoxyuridine -> uridine (977).	I	B

Neurospora Crassa Wikipedia