Abstract Detail

Systematics

Tarullo, Cara [1], Folk, Ryan [2], Soltis, Douglas [3], Soltis, Pamela S. [4], Drew, Bryan [5].

Using a supermatrix approach to explore historical biogeography, divergence times and phylogenetics of Saxifragales.

The Saxifragales are an angiosperm order consisting of about 15 families and 2500 species. Although the Saxifragales are consistently recovered as monophyletic in molecular DNA analyses, familial relationships within the order are unclear. In addition, while there are both cosmopolitan and narrowly distributed families within Saxifragales, no explicit attempt to reconstruct the intra-ordinal biogeographic history of Saxifragales has yet been published. Here, we employ a supermatrix approach to examine phylogenetic relationships, divergence times, and the biogeographical history of major lineages of Saxifragales. The supermatrix dataset is composed of over 600 species representing all 15 Saxifragales families, and contains over 40,000 chloroplast and nuclear nucleotide sequences. Divergence times were estimated with BEAST, and biogeographical reconstructions were obtained using S-DIVA and BioGeoBEARS.

1 - University of Nebraska Kearney, Biology, 905 West 25th Street, Kearney, NE, 68849, USA
2 - Florida Museum of Natural Science, Systematics, 1659 Museum Road, Gainesville, FL, 32611, USA
3 - Florida Museum of Natural History, Florida Museum of Natural History, Dickinson Hall - Museum Road, Gainesville, FL, 32611, United States
4 - University Of Florida, Florida Museum Of Natural History, 1659 Museum Rd., Gainesville, FL, 32611, USA
5 - University of Nebraska Kearney, 905 West 25th Street, Kearney, NE, 68849, United States

Keywords:
Saxifragales
Biogeography
supermatrix.

Presentation Type: Poster
Session: P, Systematics Section/ASPT Posters
Location: Exhibit Hall/Savannah International Trade and Convention Center
Date: Monday, August 1st, 2016
Time: 5:30 PM This poster will be presented at 5:30 pm. The Poster Session runs from 5:30 pm to 7:00 pm. Posters with odd poster numbers are presented at 5:30 pm, and posters with even poster numbers are presented at 6:15 pm.
Number: PSY001
Abstract ID:686
Candidate for Awards:None