Award details

Differential gene exchange across a steep selection gradient: a genomic analysis

Reference	G18145
Principal Investigator / Supervisor	Professor Jane Rogers
Co-Investigators / Co-Supervisors
Institution	Wellcome Trust Sanger Institute
Department	Wellcome Trust Sanger Institute Department
Funding type	Research
Value (£)	56,832
Status	Completed
Type	Research Grant
Start date	01/06/2004
End date	31/05/2006
Duration	24 months

Abstract

Many models of speciation involve a stage in which parts of the genome are open to gene exchange while selection prevents introgression in other parts. Analyses of multi-locus sequence data have started to reveal such patterns in closely related Drosophila species. We propose to complement and extend these studies using a parapatric interaction between distinct morphs of the gastropod Littorina saxatilis occupying a steep environmental gradient. We will compare the pattern of sequence diversity and divergence in differentiated and undifferentiated parts of the genome and document the genomic extent of the differentiated regions. We will use the data to test hypotheses about the origin of the divergence using coalescent simulations. (Joint with grant 18139)

Summary

unavailable

Committee	Closed Committee - Genes & Developmental Biology (GDB)
Research Topics	X – not assigned to a current Research Topic
Research Priority	X – Research Priority information not available
Research Initiative	X - not in an Initiative
Funding Scheme	X – not Funded via a specific Funding Scheme

Associated awards:

G18139 Differential gene exchange across a steep selection gradient: a genomic analysis

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