Mapping theClockRhythm Mutation to thePeriodLocus ofDrosophila Melanogasterby Germline Transformation
- 1 January 1992
- journal article
- other
- Published by Taylor & Francis in Journal of Neurogenetics
- Vol. 8 (3) , 173-179
- https://doi.org/10.3109/01677069209083446
Abstract
The Clock (Clk) mutation shortens circadian rhythms of locomotor activity and eclosion from ca. 24 h to 22.5–23 h. Clk was previously mapped, by meiotic recombination, very close to the period(per) locus on the X chromosome. To determine whether Clk is a mutation within the per gene or if the former is separate from the latter, two overlapping genomic fragments were cloned from Clk flies to produce a per-containing 13.2 kb construct, per01 flies (which by themselves are arrhythmic)—when transformed with this construct—-expressed short-period rhythms. This indicates that the Clk mutation is contained within this 13.2 kb region and is almost certainly a new “fast-clock” allele of per.Keywords
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