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FRIBIO-Biologi og biomedisin

The early stages of adaptive divergence: the speed of evolution

Tildelt: kr 3,1 mill.

Prosjektnummer:

177728

Søknadstype:

Prosjektperiode:

2007 - 2009

Midlene er mottatt fra:

In this proposed project we will study processes during the early phase of adaptive divergence. Lesjaskogsvatnet was colonized by grayling Thymallus thymallus in 1880 and during 120 years more than 20 demes have been established. Owing to profound tempera ture differences among tributaries, we expect to find significant genetic and phenotypic differentiation between grayling spawning in different tributaries despite the short divergence time and lack of obvious isolation barriers. The main objectives of th is project are to study the level of reproductive isolation and local adaptation and to explore the genetics of these two processes. This will be done using common garden experiments, and molecular- and quantitative genetic methods. Preliminary results in dicate that significant genetic and phenotypic divergence have developed during the short time span at hand, and this project will thus bring new and much-needed information about the mechanics of important evolutionary processes.

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Budsjettformål:

FRIBIO-Biologi og biomedisin

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