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Evolution toward pollution-resistant ecotypes of Baltic threespine stickleback, Gasterosteus aculeatus, suggested by AFLP markers
Södertörn University College, School of Life Sciences. (Mats Grahn)
2008 (English)Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
Abstract [en]

This study used amplified fragment length polymorphism (AFLP) to detect changes of genetic variation in threespine stickleback exposed to industrial pollution from pulp- and paper mills along the southern east coast of Sweden. A general loss of allelic diversity was associated with exposure (table 3, linear model, F1,4=7.2 [P=0.055]) and exposed populations also displayed a similar pattern of response (fig 5) despite geographic distance, indicating that evolution toward pollution resistant ecotypes of threespine stickleback is occurring in the Baltic Sea. The result suggests that pollution can be regarded as an agent of directional selection, causing a decrease of evolutionary potential of exposed species in the Baltic Sea.

Place, publisher, year, edition, pages
2008. , 13 p.
Keyword
Microevolution, threespine stickleback, population genetics, genetic response, pollution
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:sh:diva-1935OAI: oai:DiVA.org:sh-1935DiVA: diva2:128449
Presentation
2008-11-14, MC 221, Alfred Nobels allé 7, Flemingsberg, 13:00 (English)
Uppsok
bio-/geovetenskap
Supervisors
Examiners
Available from: 2008-12-18 Created: 2008-12-17 Last updated: 2008-12-18Bibliographically approved

Open Access in DiVA

fulltext(413 kB)146 downloads
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CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf