FGSC #2999

Reporting Genes: su(mtr);fpr-3

Species: crassa

Allele: 18;no#

Alternate Strain Number: J124

Depositor: JAK

Linkage Group: IC;IIIR

Mating Type: A

Species Number: 10

ref1: Kinsey Neurospora Newsletter 22:20 (1975), https://doi.org/10.4148/1941-4765.1792

Genes

Locus	Cultural Requirements	Link Group	Type
fpr-3	IIIR. Linked to trp-1 (0.35%) and thi-2 (5%) (550). Resistant to p-fluorophenylalanine but not to 4-methyltryptophan. Not resistant in the presence of indole. Amino acid uptake is normal through transport systems I and II, as defined in reference 550. Isolated in a su(mtr) strain. Scored on solid medium containing 10 µg of p-fluorophenylalanine per ml (550), added before autoclaving.	IIIR	B
su(mtr)	IR. Right of his-2 (2%) (1018). Selected in the double mutant trp-1;mtr by increased uptake of tryptophan (1018) or as his+ revertants of his-2;mtrstrains on histidine plus excess arginine (107). Still resistant to 4-methyltryptophan, but now sensitive to p-fluorophenylalanine (1018). The effect of su(mtr)-1 on mtr is locus specific. su(mtr)-1 appears to have a changed regulation for amino acid transport system II (776). Possibly allelic with lysR (565).	IR

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