Variation in Septocyta ruborum and its potential for biological control of European blackberry

Adair, R, Baguant, J and Lawrie, A 2012, 'Variation in Septocyta ruborum and its potential for biological control of European blackberry', in Valerie Eldershaw (ed.) Proceedings of 18th Australasian Weeds Conference, Melbourne, Australia, 8-11 October 2012, pp. 343-346.


Document type: Conference Paper
Collection: Conference Papers

Title Variation in Septocyta ruborum and its potential for biological control of European blackberry
Author(s) Adair, R
Baguant, J
Lawrie, A
Year 2012
Conference name 18th Australasian Weeds Conference
Conference location Melbourne, Australia
Conference dates 8-11 October 2012
Proceedings title Proceedings of 18th Australasian Weeds Conference
Editor(s) Valerie Eldershaw
Publisher Weed Society of Victoria
Place of publication Batman, Australia
Start page 343
End page 346
Total pages 4
Abstract The fungus Septocyta ruborum causes a destructive necrosis of floricanes in blackberry (Rubus fruticosus) in Europe and is a potential candidate for biological control in Australia. Over 100 accessions of S. ruborum from Europe were analysed for variation in pathogenicity and virulence. Virulence varied among accessions within R. fruticosus 'species'. Accessions screened for genetic diversity using (internal transcribed spacer (ITS) sequencing and RAPD (random amplification of polymorphic DNA) yielded identical ITS sequences, but three of 120 RAPD primers showed high levels of polymorphism. Accessions clustered into five main groups, but these were not related exclusively to virulence or geography. Some accessions from northern Europe and one accession from Hungary clustered apart from the main group. The large amount of polymorphism in both virulence and genetics suggests that S. ruborum reproduces sexually or that it has subdivided into many races. The large genetic variation offers considerable potential for selection of host-specific forms, an advantage in biological control.
Subjects Biological Control
Plant Pathology
Crop and Pasture Protection (Pests, Diseases and Weeds)
Keyword(s) Pathogen
Coelomycete
Purple blotch disease
Australia.
ISBN 9780646586700
Versions
Version Filter Type
Access Statistics: 163 Abstract Views  -  Detailed Statistics
Created: Thu, 15 Jan 2015, 08:26:00 EST by Catalyst Administrator
© 2014 RMIT Research Repository • Powered by Fez SoftwareContact us