Phylogenetic Patterns and Conservation of North American Agalinis
Author Information
Author(s): James B. Pettengill, Maile C. Neel
Primary Institution: University of Maryland College Park
Hypothesis
What are the phylogenetic relationships among North American Agalinis species and how do they relate to conservation efforts?
Conclusion
The study found that North American Agalinis species form a well-supported, monophyletic group, but many historical classifications based on morphology are not supported by molecular data.
Supporting Evidence
- 24 of the 29 sampled species were supported as monophyletic.
- 21 species are of conservation concern in at least some part of their range.
- Most hypotheses regarding section- and subsection-level relationships based on morphology were not supported.
Takeaway
This study looked at a group of plants called Agalinis and found that they are more closely related than previously thought, which is important for their conservation.
Methodology
The study used maximum likelihood analyses of seven chloroplast DNA loci and one nuclear ribosomal DNA locus to assess phylogenetic relationships.
Potential Biases
Potential biases due to incomplete lineage sorting and hybridization were noted.
Limitations
Some species were not sampled, and deeper relationships among many species remain ambiguous.
Statistical Information
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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