Evidence of Adaptive Evolutionary Divergence during Biological Invasion

Lucek, K.; Sivasundar, A.; Seehausen, O. (2012). Evidence of Adaptive Evolutionary Divergence during Biological Invasion. PLoS ONE, 7(11), e49377. Lawrence, Kans.: Public Library of Science 10.1371/journal.pone.0049377

[img]
Preview
Text
fetchObject.pdf - Published Version
Available under License Creative Commons: Attribution (CC-BY).

Download (268kB) | Preview

Rapid phenotypic diversification during biological invasions can either arise by adaptation to alternative environments or by adaptive phenotypic plasticity. Where experimental evidence for adaptive plasticity is common, support for evolutionary diversification is rare. Here, we performed a controlled laboratory experiment using full-sib crosses between ecologically divergent threespine stickleback populations to test for a genetic basis of adaptation. Our populations are from two very different habitats, lake and stream, of a recently invaded range in Switzerland and differ in ecologically relevant morphological traits. We found that in a lake-like food treatment lake fish grow faster than stream fish, resembling the difference among wild type individuals. In contrast, in a stream-like food treatment individuals from both populations grow similarly. Our experimental data suggest that genetically determined diversification has occurred within less than 140 years after the arrival of stickleback in our studied region.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE) > Aquatic Ecology
08 Faculty of Science > Department of Biology > Institute of Ecology and Evolution (IEE)

UniBE Contributor:

Lucek, Kay Jurka Olaf; Sivasundar, Arjun and Seehausen, Ole

ISSN:

1932-6203

Publisher:

Public Library of Science

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:40

Last Modified:

13 Dec 2014 07:04

Publisher DOI:

10.1371/journal.pone.0049377

Web of Science ID:

000311234000066

BORIS DOI:

10.7892/boris.16328

URI:

https://boris.unibe.ch/id/eprint/16328 (FactScience: 223942)

Actions (login required)

Edit item Edit item
Provide Feedback