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Abstract Detail


Whittemore, Alan [1], Hipp, Andrew [2].

RADseq phylogeny of the genus Ulmus.

Elms (the genus Ulmus) are dominant trees in many parts of the northern hemisphere, and they have been widely planted as ornamental and shade trees in many countries. However, both native and cultivated elms have been heavily impacted by diseases throughout North America and Europe, prompting a search for genes conferring disease tolerance in elms. A RADseq phylogeny was obtained for ca 85% of the species of Ulmus, a circumpolar genus of trees. Results are generally similar to previous analyses based on morphology and chloroplast DNA, but some previously hypothesized clades must be rejected. The two traditional subgenera (each found in both Eurasia and North America) are both supported, but some well-supported chloroplast clades did not appear in the RADseq analysis, and generally the sections recognized in recent treatments were not recovered in the RADseq cladogram. This improved understanding of species relationships in Ulmus will be important in the search for disease-tolerant genetic material for breeding and commercial introduction.

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1 - U S National Arboretum, 3501 New York Ave NE, Washington, DC, 20770-1958, USA
2 - The Morton Arboretum, 4100 Illinois Route 53, Lisle, IL, 60532-1293, USA


Presentation Type: Oral Paper
Session: 41, Basal Rosids & Rosids I
Location: 101/Savannah International Trade and Convention Center
Date: Wednesday, August 3rd, 2016
Time: 11:00 AM
Number: 41012
Abstract ID:137
Candidate for Awards:None

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