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The Vitextrifolia complex (Lamiaceae) in the Philippines
Renerio P Gentallan1, Seda Sengun1, Michael Cedric B Bartolome1
1Institute of Crop Science, College of Agriculture and Food Science, University of the Philippines Los Baños, Los Baños, Laguna, Philippines University of the Philippines Los Baños Los Baños Philippines.
This study clarifies the taxonomy of the economically important Vitex trifolia complex in the Philippines using chloroplast genomes. It reinstates V. elmeri and describes V. arvensis as a new endemic species.
Area of Science:
- Botany
- Plant Taxonomy
- Molecular Biology
Background:
- The Vitex trifolia complex in the Philippines contains economically significant medicinal plants.
- Taxonomic status is unclear due to historical revisions.
Purpose of the Study:
- To clarify the species delimitation within the Vitex trifolia complex.
- To provide molecular and morphological evidence for species identification.
Main Methods:
- Assembly of complete chloroplast genomes from five species.
- Detailed analysis of molecular and morphological data.
Main Results:
- Reinstatement of Vitex elmeri Moldenke.
- Delineation of Vitex arvensis Gentallan, Sengun & M.B.Bartolome as a new endemic species.
- Identification of V. arvensis as a putative hybrid between V. bicolor and V. elmeri.
Conclusions:
- The study provides crucial evidence for species delimitation within the Vitex trifolia complex.
- A new key for identifying five species within the complex in the Philippines is presented.
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