Relationships of California Floristic Province Menthinae (Lamiaceae)

Mallory Hays, Dr. Bryan Drew, Department of Biology, University of Nebraska at Kearney, 2504 9th Ave, Kearney, NE 68849

Menthinae (Lamiaceae) is the second largest subtribe within tribe Mentheae, and includes about 35 genera and 750 species. Menthinae are important economically both as culinary herbs (e.g., mints [Mentha], oregano [Origanum], savory [Satureja], and thyme [Thymus], and as ornamental plants (e.g., bee balm [Monarda]). The Menthinae are also ecologically important throughout their range, especially in terms of facilitating and maintaining pollinator diversity. Three genera of Menthinae, Acanthomintha, Monardella, and Pogogyne, have a center of distribution within the California Floristic Province (CFP), and two other Menthinae genera, Clinopodium and Pycnanthemum, occur within the CFP. This study investigates relationships within the CFP Menthinae using a molecular phylogenetic approach. For this study we collected representatives from all genera of Menthinae from within the CFP, extracted DNA from dried leaf material, and amplified targeted cpDNA and nrDNA regions via PCR. The resultant phylogenetic trees demonstrate that CFP Menthinae do not form a clade. The five species of CFP Clinopodium comprise four distinct (non-monophyletic) lineages, none of which are closely related to the type species of Clinopodium(Clinopodium vulgare). Thus, four new genera will need to be described. 

Additional Abstract Information

Presenter: Mallory Hays

Institution: University of Nebraska at Kearney

Type: Poster

Subject: Plant Sciences

Status: Approved

Time and Location

Session: Poster 9
Date/Time: Wed 12:00pm-1:00pm
Session Number: 6166