Comparing genome scans among species of the stickleback order reveals three different patterns of genetic diversity

Reeve, J.; Li, Q.; Lindtke, Dorothea; Yeaman, S. (2022). Comparing genome scans among species of the stickleback order reveals three different patterns of genetic diversity. Ecology and evolution, 12(1), e8502. John Wiley & Sons, Inc. 10.1002/ece3.8502

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Comparing genome scans among species is a powerful approach for investigating the patterns left by evolutionary processes. In particular, this offers a way to detect candidate genes that drive convergent evolution. We compared genome scan results to investigate if patterns of genetic diversity and divergence are shared among divergent species within the stickleback order (Gasterosteiformes): the threespine stickleback (Gasterosteus aculeatus), ninespine stickleback (Pungitius pungitus), and tubesnout (Aulorhynchus flavidus). Populations were sampled from the southern and northern edges of each species’ range, to identify patterns associated with latitudinal changes in genetic diversity. Weak correlations in genetic diversity (FST and expected heterozygosity) and three different patterns in the genomic landscape were found among these species. Additionally, no candidate genes for convergent evolution were detected. This is a counterexample to the growing number of studies that have shown overlapping genetic patterns, demonstrating that genome scan comparisons can be noisy due to the effects of several interacting evolutionary forces.

Item Type:

Journal Article (Original Article)

Division/Institute:

08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS) > Plant Development
08 Faculty of Science > Department of Biology > Institute of Plant Sciences (IPS)

UniBE Contributor:

Lindtke, Dorothea

Subjects:

500 Science > 580 Plants (Botany)

ISSN:

2045-7758

Publisher:

John Wiley & Sons, Inc.

Language:

English

Submitter:

Peter Alfred von Ballmoos-Haas

Date Deposited:

02 Mar 2022 11:22

Last Modified:

05 Dec 2022 16:07

Publisher DOI:

10.1002/ece3.8502

PubMed ID:

35127027

Uncontrolled Keywords:

comparative genomics, convergent evolution, genome scan, stickleback

BORIS DOI:

10.48350/165286

URI:

https://boris.unibe.ch/id/eprint/165286

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