Abstract Detail

Systematics Section/ASPT

Miles, Nicholas [1], Crowl, Andrew [2], Visger, Clayton J [3], Wu, Hsin-Hu [1], Haberle, Rosemarie [4], Hansen, Kimberly [5], Ayers, Tina [6], Cellinese, Nico [1].

A Large-Scale Phylogeny of Campanulaceae: Biogeography, Flora Evolution, and Genome Evolution.

Campanulaceae are a large, cosmopolitan angiosperm clade with diverse pollinator adaptations including specialized floral morphologies and pollen presentation mechanisms. Although there has been much speculation as to the relationships between and within the five major lineages, to date, there has not been a molecular phylogenetic study that has included dense sampling of all groups within Campanulaceae.  We present a comprehensive phylogeny of this clade based on all available GenBank nucleotide data, recent transcriptome data, and new targeted sequences.  We use this large-scale phylogeny to better understand the evolution of floral symmetry and help inform evo-devo studies currently underway. The modeling of chromosome evolution across the entire clade shows promise for hypothesizing polyploid events across the tree and is supported by Ks plots from transcriptomes from two of the lineages. In addition, ancestral area reconstruction and molecular dating analyses allow us to form hypotheses regarding the major biogeographic processes that have shaped the evolution of this clade.  Overall, results from this study have important implications for understanding the morphological, geographical, and genomic evolution that produced this diverse, widespread group.

1 - University Of Florida, Florida Museum Of Natural History, Dickinson Hall, Gainesville, FL, 32611-7800, USA
2 - University of Florida, Florida Museum of Natural History, Department of Biology, Gainesville, FL, 32611, USA
3 - University of Florida, Florida Museum of Natural History and Department of Biology, Gainesville, FL, 32611, United States
4 - Pacific Lutheran University, Biology Department, Tacoma, WA, 98407, USA
5 - Northern Arizona University, Biological Sciences Department, 617 S. Beaver St., P.O. Box 5640, Flagstaff, AZ, 86011, USA
6 - Northern Arizona University, Department Of Biological Sciences, PO Box 5640, Flagstaff, AZ, 86011-5640, USA

Keywords:
Campanulaceae
Biogeography
floral evolution
Genome Evolution
Paleopolyploidy.

Presentation Type: Poster:Posters for Sections
Session: P
Location: Eyrie/Boise Centre
Date: Monday, July 28th, 2014
Time: 5:30 PM
Number: PSY044
Abstract ID:599
Candidate for Awards:None