Identification of pathotypes of the sorghum rust pathogen, Puccinia purpurea, in Australia

White, J. A., Ryley, M. J., George, D. L. and Kong, G. A. (2015) Identification of pathotypes of the sorghum rust pathogen, Puccinia purpurea, in Australia. Australasian Plant Pathology, 44 1: 1-4. doi:10.1007/s13313-014-0318-3


Author White, J. A.
Ryley, M. J.
George, D. L.
Kong, G. A.
Title Identification of pathotypes of the sorghum rust pathogen, Puccinia purpurea, in Australia
Formatted title
Identification of pathotypes of the sorghum rust pathogen, Puccinia purpurea, in Australia
Journal name Australasian Plant Pathology   Check publisher's open access policy
ISSN 1448-6032
0815-3191
Publication date 2015-01
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s13313-014-0318-3
Open Access Status
Volume 44
Issue 1
Start page 1
End page 4
Total pages 4
Place of publication Dordrecht, Netherlands
Publisher Springer Netherlands
Collection year 2015
Language eng
Formatted abstract
This study aimed to determine if pathotypic diversity of the sorghum rust pathogen, P. purpurea, exists in eastern Australia. A differential set of 10 Sorghum bicolor genotypes was used to identify four putative pathotypes from the 28 P. purpurea isolates that were tested. Pathotypes 1 and 3 were the most common, together comprising 85.7 % of the isolates tested, while pathotype 2 comprised 10.7 % of isolates, and pathotype 4 the remainder. Based on the limited number of isolates that were tested, there was evidence of geographic specialization amongst the pathotypes, with pathotype 1 not being found in north Queensland. This work has provided conclusive evidence that pathotypes of P. purpurea exist in the sorghum growing regions of Australia and has resulted in the development of a protocol for identifying pathotypes and screening breeding and experimental lines for resistance to these pathotypes. However, further investigations on the pathotypic diversity of P. purpurea and on the temporal and geographic distribution of these four as well as any additional undiscovered pathotypes are needed.
Keyword Differential set
Geographic distribution
Pathotype frequency
S. bicolor
S. sudanense
S. halepense
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ
Additional Notes Published online ahead of print 25 Sep 2014

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Agriculture and Food Sciences
Official 2015 Collection
 
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