Molecular identification of Solanum elaeagnifolium in Australia using DNA barcoding, a solution for better management

Research output: Book chapter/Published conference paperConference paper

Abstract

The problematic weed silverleaf nightshade (Solanum elaeagnifolium Cav.) was introduced to Australia during the early 20th century from North America and has since emerged as a Weed of National Significance. This species is almost impossible to eradicate after establishment, with its management in areas of new emergence therefore much aided by prompt identification and early action. Identification of the weed is often confounded because of the weed’s remarkable similarity (especially pre-floral stages) toa variety of native Solanum species. DNA barcoding for improved identification may therefore improve its management. Sequences of the nuclear waxy geneand two chloroplast genes (matK and trnL-trnF) were compared among S. elaeagnifolium (N = 12) and 10 native species (S. brownii, S. centrale, S. coactiliferum,S. esuriale, S. jucundum, S. lasiophyllum, S. lithophyllum, S. petrophilum, S. quadriloculatum and S. sturtianum) with which the weed is commonly confused.A further five species including S. campanulatum,S. chenopodinum, S. cleistogamum, S. nummulariumand S. succosum, were also analysed to provide a wide cross-section of Australian native species.
Original languageEnglish
Title of host publication21st Australasian Weeds Conference
EditorsStephen Johnson, Leslie Weston, Hanwen Wu, Bruce Auld
PublisherWeed Society of NSW
Pages307-311
Number of pages5
ISBN (Print)9780995415911
Publication statusPublished - 2018

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