Revisiting the classification of Plantaginaceae based on a nuclear phylogenomics
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Proposed Symposium Title: Revisiting the classification of Plantaginaceae based on a nuclear phylogenomics
Dirk C. Albach, Niels Kappert
Affiliations: Institute of Biology and Environmental Sciences, Carl-von-Ossietzky University Oldenburg, Germany
Plantaginaceae have given rise to discussions about their phylogeny for decades. Established by de Jussieu over 200 years ago, including three genera, the family grew massively to around 107 genera, mainly by including parts of the Scrophulariaceae but also several small families. This circumscription has not changed in the past 20 years, when the first molecular studies targeting those families were published. Nevertheless, despite ongoing research, relationships among genera and tribes are still unresolved, letting the discussion smoulder on until today.
Resolving the family-wide phylogeny is the next step to get a more complete picture of the relationships between the included genera and forming tribes as well as helping to place genera within the order of Lamiales. Since the last family-wide analysis was lacking some genera, this study includes some genera for the first time (e.g. Gadoria (Antirhineae) or Umbraria (Gratioleae)). To achieve a more complete picture, herbarium samples were used from nearly all genera possibly belonging to the family; large genera were covered by multiple samples.
Target sequences were captured via the angiosperms353 toolkit and sequenced by HybSeq. The presentation will provide the most complete and reliable analysis up-to-date. The major changes within the family of Plantaginaceae will be highlighted together with a discussion about the evolution of the family.