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.
|Title of host publication||21st Australasian Weeds Conference|
|Editors||Stephen Johnson, Leslie Weston, Hanwen Wu, Bruce Auld|
|Publisher||Weed Society of NSW|
|Number of pages||5|
|Publication status||Published - 2018|