Origins of African Rain Forest Trees
Author Information
Author(s): Couvreur Thomas LP, Chatrou Lars W, Sosef Marc SM, Richardson James E
Primary Institution: Nationaal Herbarium Nederland, Wageningen branch, Wageningen University
Hypothesis
Did the African rain forests originate from a single break-up or multiple fragmentation events?
Conclusion
The study reveals that East African endemic lineages of Annonaceae have multiple origins that coincide with historical periods of aridification and geological activity.
Supporting Evidence
- The study identified five different origins of endemic East African lineages.
- Divergence times were estimated to significantly different periods.
- The results suggest that historical climatic changes influenced the distribution of these trees.
Takeaway
This study shows that African rain forest trees have different origins, and their diversity is due to past connections and separations between rain forest regions.
Methodology
Molecular phylogenies and divergence dates were estimated using a Bayesian relaxed uncorrelated molecular clock.
Limitations
The study focuses on a specific plant family and may not represent all rain forest species.
Statistical Information
Confidence Interval
95% HPD: 42.9–23.6 Myr
Digital Object Identifier (DOI)
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