Time and Origin of Cichlid Colonization of the Lower Congo Rapids
2011

Cichlid Colonization of the Lower Congo Rapids

Sample size: 145 publication Evidence: high

Author Information

Author(s): Julia Schwarzer, Bernhard Misof, Seraphin N. Ifuta, Ulrich K. Schliewen

Primary Institution: Bavarian State Collection of Zoology, München, Germany

Hypothesis

How did cichlid species diversify in the lower Congo River?

Conclusion

The study provides evidence that cichlid diversity in the lower Congo originated in situ within the last 5 million years.

Supporting Evidence

  • The study identified a high level of riverine diversity in the lower Congo.
  • Phylogenetic analyses revealed that cichlid species radiated in situ within the last 5 million years.
  • Spatial genetic structures correspond to major biogeographic areas in the lower Congo.

Takeaway

This study shows that cichlids in the lower Congo River have a lot of different species that evolved right there in the river, not from other places.

Methodology

The study used AFLP markers and multilocus sequence datasets to analyze the phylogenetic history and timing of cichlid colonization.

Limitations

The study may not account for all ecological factors influencing cichlid diversity.

Digital Object Identifier (DOI)

10.1371/journal.pone.0022380

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