Gene: frequency
frequency
locus: frq-6
locus_name: frequency
organism_type: B
chromosome_number:
chromosome_side:
link_group:
cultural_requirements: VIIR. Between un-10 (9%) and for (3%) (J.F. Feldman, personal communication). Right of met-9 (9 to 13%). Linked to oli (< 2%); possibly allelic (282). (330)A series of clustered genes or of multiple alleles resulting in altered periods in the circadian rhythm cycle of conidiation. Identified mutations and their periods (at 25 C without csp) are: frq-1, 16.5 h; frq-2,19.3 h; frq-3, 24.0 h; and frq-4, 19.3 h (331); frq-6, 19.2 h; frq-7, 29.0 h; and frq-8, 29.0 h (wild type, 21.5 h) (329, 377). Strains carrying allele UV-111-9 show erratic periodicity. Temperature compensation and interactions with other loci have been described; dominance is incomplete; growth rates are normal (326, 375-377). Scoring is accomplished by zonation in growth tubes or plates, using strains that carry bd and preferably csp-1 or csp-2. Presence of csp shortened period length about 1 h in the one strain tested (279). Period-altering mutations elsewhere in the genome are given different names (e.g., prd and chr). The symbol frq is reserved for this locus or region (329). For review of circadian mutants, see references 326 and 328.
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Strains
FGSC # | Reporting Genes | Species |
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FGSC #4897 | bd;frq6 | Neurospora crassa |
References
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