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Abstract Detail


Recent Topics Posters

Hardiman, Nicole [1], Culley, Theresa M. [1].

Characterization of Pyrus calleryana cultivars using microsatellite markers.

PYRUS calleryana, commonly called the Callery pear, is an ornamental tree native to China that is favored for its showy, white flowers, tolerance to a range of environmental conditions, and rapid growth. The species has been widely planted within urban residential and commercial areas in the United States, but is currently appearing in natural areas outside of cultivation. Although not as widespread as other invasive species, P. calleryana appears to be in the beginning stages of invasion by dispersing to old field or disturbed areas, establishing new populations, and producing many fruits. The purpose of this study was to characterize six different P. calleryana cultivars (i.e. cultivated varieties) using microsatellite markers that were originally developed in other Pyrus and Malus species. We found that Callery pear cultivars each possessed a distinct genotype, and individuals of the same cultivar were identical to one another. The successful identification of cultivars via genetic markers reported here will now allow for parentage analysis of wild populations. Future studies will also seek to identify the genetic and ecological mechanisms promoting evolution of this species from a well-behaved ornamental to a potentially noxious invasive.


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1 - University of Cincinnati, Department of Biological Sciences, 614 Rieveschl Hall, Cincinnati, Ohio, 45221, USA

Keywords:
cultivar
microsatellite
invasive
Pyrus calleryana.

Presentation Type: Recent Topics Poster
Session: 48a-16
Location: Auditorium/Bell Memorial Union
Date: Tuesday, August 1st, 2006
Time: 12:30 PM
Abstract ID:1093


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