Abstract Detail

Systematics

Worcester, Lindsey [1], Hipp, Andrew [2], Hoban, Sean [3], Lobdell, Matt [4], Rollinson, Christy [4], Westwood, Murphy [4].

Using phylogeny, genetics, ecology, conservation status and horticultural value to evaluate living collections.

Living collections at arboreta and other botanic gardens are critical resources to conserving species, providing living plants we can study in conjunction with herbarium specimens, and serving as a resource for teaching the public about different tree species. This project looks at quantifying the conservation, genetic, ecological, horticultural, and phylogenetic value of four accredited living tree collections (Tilia, Malus, Quercus, and Ulmus) on The Morton Arboretum’s grounds. Within this context, this presentation will focus on using phylogenetic diversity of species present on the arboretum’s grounds by developing a species tree for each of the genera from RAD-seq data. For Quercusand Ulmus, we already have species trees developed with extensive sampling. For Malus andTilia, phylogenetic resources are not yet available to the detail that we require for species-level conservation planning. All four genera are complicated groups, potentially complicated by hybridization and lineage sorting as well as taxonomic challenges. We present a preliminary approach to integrating these data types to prioritize collections decisions by maximizing phylogenetic diversity or to weight conservation value based on the interests of the institution and present phylogenetic results to date.

1 - The Morton Arboretum, Center for Tree Science, 4100 IL Rt. 53, Room 327, Lisle, IL, 60532, USA
2 - The Morton Arboretum, 4100 Illinois Route 53, Lisle, IL, 60532, United States
3 - The Morton Arboretum, Research, 4100 Illinois Rt 53, Lisle, 60532, United States
4 - The Morton Arboretum, 4100 IL Rt. 53, Lisle, IL, 60532, USA

Keywords:
phylogeny
genetics
ecology
Conservation of biodiversity 
horticultural value
Living Collections
Tilia
Malus
Quercus
Ulmus
phylogenomics.

Presentation Type: Oral Paper
Session: SYS1, Systematics I: Land plants, Gymnosperms to Rosids part 1
Location: Tucson H/Starr Pass
Date: Monday, July 29th, 2019
Time: 1:45 PM
Number: SYS1002
Abstract ID:998
Candidate for Awards:None