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Title: A latitudinal cline in a Drosophila clock gene.
Authors: Costa, R
Peixoto, AA
Barbujani, G
Kyriacou, CP
First Published: 22-Oct-1992
Citation: PROC BIOL SCI, 1992, 250 (1327), pp. 43-49
Abstract: The clock gene period determines biological rhythmicity in Drosophila melanogaster and encodes a protein characterized by an alternating series of threonine-glycine pairs. The minisatellite region encoding the threonine-glycine repeat is polymorphic in length in natural Drosophila melanogaster populations. In this paper we report the geographical analysis of this polymorphism within Europe and North Africa. A robust clinal pattern is observed along a north-south axis. We suggest the possibility that the length polymorphism could be maintained by thermal selection because the threonine-glycine region has been shown to provide thermostability to the circadian phenotype.
DOI Link: 10.1098/rspb.1992.0128
ISSN: 0962-8452
Type: Journal Article
Appears in Collections:Published Articles, Dept. of Genetics

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