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Updated: Jun 1, 2026
08:57
Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin
Published on: August 14, 2018
Angiosperm phylogeny: 17 genes, 640 taxa.
Douglas E Soltis1, Stephen A Smith, Nico Cellinese
1Department of Biology, University of Florida, Gainesville, Florida 32611-8525, USA. dsoltis@botany.ufl .edu
American Journal of Botany
|May 27, 2011
Summary
This study resolves deep-level angiosperm phylogeny using extensive gene and species sampling. The resulting well-supported phylogenetic tree offers broad utility for various biological disciplines.
Area of Science:
- Plant evolutionary biology
- Phylogenetics
- Molecular systematics
Background:
- Previous angiosperm phylogeny studies using limited genes had unresolved relationships.
- Expanding gene and taxa sampling is crucial for robust phylogenetic inference.
Purpose of the Study:
- To improve the resolution and support of angiosperm phylogeny.
- To reconstruct a comprehensive evolutionary tree of angiosperms.
Main Methods:
- Phylogenetic analyses of 640 species from 330 families.
- Utilized large sequence datasets: 25,260 aligned base pairs (bp) from 17 genes (nuclear, plastid, mitochondrial) and 19,846 bp from 13 genes (nuclear, plastid).
Main Results:
- Resolved deep-level relationships in nonmonocot angiosperms with strong support.
- Established the placement of early diverging lineages (Amborellaceae, Nymphaeales, Austrobaileyales) and major clades like Mesangiospermae, Eudicotyledoneae, and Pentapetalae.
- Detailed relationships within major subclades, including Superrosidae and Superasteridae, with high confidence.
Conclusions:
- Large-scale sequence data effectively resolves deep-level angiosperm relationships.
- The robust phylogenetic tree is expected to be valuable for diverse fields like ecology, paleobiology, and genomics.
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