Abstract Detail

Phylogenomics

Mandel, Jennifer R. [1], Barker, Michael [2], Bayer, Randall [3], Dikow, Rebecca [4], Keeley, Sterling [5], Susanna, Alfonso [6], Watson, Linda [7], Funk, Vicki [8].

Using Phylogenomics to Resolve The Compositae Tree of Life.

The Compositae comprises more than 25,000 species of sunflowers, artichokes, dandelions and daisies, representing 10% of all flowering plant species on Earth. Many species have restricted ranges in areas that are threatened with high extinction rates (e.g., Pacific Islands, Cape Floristic Region) while some are among the world’s most noxious weeds (e.g., knapweeds, thistles) and others are economically important crops and cultivars (e.g., food, medicinals, insecticides, garden plants, cut flowers). Similar to other major lineages of organisms (vertebrates, fish, spiders, flowering plants), the family has experienced substantial gene and genome duplication throughout its history, and many of its major lineages have undergone rapid diversification and expansion. Numerous broad (among tribes) and fine scale (within tribes) relationships remain unresolved. Our research utilizes gene capture data (Hyb-Seq), plastomes, transcriptomics, and genomes to examine phylogeny reconstruction in order to provide a robust understanding of evolutionary relationships within the family. Here we provide a summary of our progress to date including a 100+ genera phylogeny and introduce the initiative to understand the The Compositae Tree of Life. Our preliminary data indicate a “shake up” of some previously accepted clades and groupings, but much work remains. Through global partnerships we plan to broaden our taxonomic and geographic coverage of the family as we develop a comprehensive and more fully resolved Compositae Tree of Life.

Related Links:
Mandel Lab

1 - University Of Memphis, 3744 Walker Ave, Memphis, TN, 38152, USA
2 - University Of Arizona, Department Of Ecology & Evolutionary Biology, P.O. Box 210088, Tucson, AZ, 85721, USA
3 - University of Memphis, 3700 Walker Ave, Memphis, TN, 38152, United States
4 - Smithsonian Institution, Office of Research Information Services, Washington, DC, 20002
5 - University of Hawaii, Department of Botany
6 - Botanic Institute of Barcelona, Barcelona, Spain
7 - Oklahoma State University, Department Of Botany, 301 Physical Sciences, Stillwater, OK, 74078-3013, USA
8 - Smithsonian Institution, DEPT OF BOTANY-NHB 166, P.O. Box 37012, Washington, DC, 20013-7012, USA

Keywords:
phylogenomics
Asteraceae
Compositae
evolution
genomics
Biodiversity.

Presentation Type: Oral Paper
Session: 29, Phylogenomics I
Location: Fort Worth Ballroom 4/Omni Hotel
Date: Tuesday, June 27th, 2017
Time: 4:15 PM
Number: 29010
Abstract ID:386
Candidate for Awards:None