A LATITUDINAL CLINE IN A DROSOPHILA CLOCK GENE

被引：141

作者：

COSTA, R ^{[1
]}

PEIXOTO, AA ^{[1
]}

BARBUJANI, G ^{[1
]}

KYRIACOU, CP ^{[1
]}

机构：

[1] UNIV LEICESTER, DEPT GENET, LEICESTER LE1 7RH, ENGLAND

来源：

PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES | 1992年 / 250卷 / 1327期

关键词：

D O I：

10.1098/rspb.1992.0128

中图分类号：

Q [生物科学];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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.

引用

页码：43 / 49

页数：7

共 45 条

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