Abstract
Phoma stem canker of oilseed rape (Brassica napus) is a globally important disease that is caused by the sibling ascomycete species Leptosphaeria maculans and L. biglobosa. Sixty fungal isolates obtained from oilseed rape stems with phoma stem canker disease symptoms collected from four provinces in China in 1999, 2005 and 2006 were all identified as Leptosphaeria biglobosa, not L. maculans, by PCR diagnostics based on species-specific primers. There were no differences in cultural characteristics (e.g. pigmentation and in vitro growth) between these L. biglobosa isolates from China and those of 37 proven L. biglobosa isolates from Europe or Canada. In studies using amplified fragment length polymorphism (AFLP) markers, Chinese L. biglobosa populations were genetically more similar to European L. biglobosa populations than to the more diverse Canadian L. biglobosa populations. Sequencing of gene fragments of β-tubulin, actin and the internal transcribed spacer (ITS) region of rDNA from L. biglobosa isolates from China, Europe, Australia and Canada showed a closer taxonomic similarity of Chinese L. biglobosa to the European L. biglobosa ‘brassicae’ than to Canadian L. biglobosa ‘canadensis’ or to the Australian L. biglobosa ‘occiaustralensis’ or ‘australensis’ subclades. These results suggest that the Chinese L. biglobosa population in this study is in the same subclade as European L. biglobosa ‘brassicae’ populations.
Similar content being viewed by others
References
Anderson, M. J. (2003). PCO: a FORTRAN computer program for principal coordinate analysis. Department of Statistics, University of Auckland, New Zealand. <http://www.stat.auckland.ac.nz/~mja/Programs.htm>.
Ansan-Melayah, D., Balesdent, M. H., Buée, M., & Rouxel, T. (1995). Genetic characterization of AvrLm1, the first avirulence gene of Leptosphaeria maculans. Phytopathology, 85, 1525–1529.
Balesdent, M. H., Jedryczka, M., Jain, L., Mendes-Pereira, E., Bertrandy, J., & Rouxel, T. (1998). Conidia as a substrate for internal transcribed spacer-based PCR identification of members of the Leptosphaeria maculans species complex. Phytopathology, 88, 1210–1217.
Barrins, J. M., Ades, P. K., Salisbury, P. A., & Howlett, B. J. (2004). Genetic diversity of Australian isolates of Leptosphaeria maculans, the fungus that causes blackleg of canola (Brassica napus). Australasian Plant Pathology, 33, 529–536.
Biddulph, J. E., Fitt, B. D. L., Leech, P. K., Welham, S. J., & Gladders, P. (1999). Effects of temperature and wetness duration on infection of oilseed rape leaves by ascospores of Leptosphaeria maculans (stem canker). European Journal of Plant Pathology, 105, 769–781.
Brun, H., Levivier, S., Eber, F., Renard, M., and Chevre, A.M. (1997). Electrophoretic analysis of natural populations of Leptosphaeria maculans directly from leaf lesions. Plant Pathology, 46, 147–154.
Chen, G. Y., Wu, C. P., Li, B., Su, H., Zhen, S. Z., & An, Y. L. (2010). Detection of Leptosphaeria maculans from imported Canola seeds. Journal of Plant Diseases and Plant Protection, 117, 173–176.
Crouch, J. A., Clarke, B. B., & Hillman, B. L. (2006). Unravelling evolutionary relationships among divergent lineages of Colletotrichum causing anthracnose disease in turfgrass and corn. Phytopathology, 96, 46–60.
Dawidziuk, A., Kaczmarek, J., & Jedryczka, M. (2012). The effect of winter weather conditions on the ability of pseudothecia on Leptosphaeria maculans and L. biglobosa to release ascospores. European Journal of Plant Pathology, 134, 329–343.
Dilmaghani, A., Balesdent, M. H., Didier, J. P., Wu, C., Davey, J., Barbetti, M. J., Li, H., Moreno-Rico, O., Phillips, D., Despeghel, J. P., Vincenot, L., Gout, L., & Rouxel, T. (2009). The Leptosphaeria maculans-L. biglobosa species complex in the American continent. Plant Pathology, 58, 1044–1058.
Evans, N., Baierl, A., Semenov, M. A., Gladders, P., & Fitt, B. D. L. (2008). Range and severity of a plant disease increased by global warming. Journal of the Royal Society Interface, 5, 525–531.
Felsenstein, J. (1985). Confidence limits on phylogenies: An approach using the bootstrap. Evolution, 39, 783–791.
Fitt, B. D. L., Brun, H., Barbetti, M. J., & Rimmer, S. R. (2006a). World-wide importance of phoma stem canker (Leptosphaeria maculans and L. biglobosa) on oilseed rape (Brassica napus). European Journal of Plant Pathology, 114, 3–15.
Fitt, B. D. L., Evans, N., Howlett, B. J., & Cooke, B. M. (2006b) (Eds). Sustainable strategies for managing Brassica napus (oilseed rape) resistance to Leptosphaeria maculans (phoma stem canker). Springer, Dordrecht, the Netherlands. 126 pp.
Fitt, B. D. L., Huang, Y. J., van den Bosch, F., & West, J. S. (2006c). Coexistence of related pathogen species on arable crops in space and time. Annual Review of Phytopathology, 44, 163–182.
Fitt, B. D. L., Hu, B. C., Li, Z. Q., Liu, S. Y., Lange, R., Kharbanda, P., Butterworth, M. H., & White, R. P. (2008). Strategies to prevent spread of Leptosphaeria maculans (phoma stem canker) onto oilseed rape crops in China; costs and benefits. Plant Pathology, 57, 652–664.
Gall, C., Balesdent, M. H., Desthieux, I., Robin, P., & Rouxel, T. (1995). Polymorphism of Tox0 Leptosphaeria maculans isolates as revealed by soluble protein and isozyme electrophoresis. Mycological Research, 99, 221–229.
Graham, G. C., Meyers, P., & Henry, R. J. (1994). A simplified method for preparation of fungal DNA for PCR and RAPD analyses. BioTechniques, 16, 48–50.
Gudelj, I., Fitt, B. D. L., & van den Bosch, F. (2004). Evolution of sibling fungal pathogens in relation to host specialisation. Phytopathology, 94, 789–795.
Gugel, R. K., & Petrie, G. A. (1992). History, occurrence, impact, and control of blackleg of rapeseed. Canadian Journal of Plant Pathology, 14, 36–45.
Hao, L., Song, P., Li, Z., Huangpu, H., & Li, Q. (2014). Genetic diversity of phoma stem canker pathogen Leptosphaeria biglobosa by ISSR. Chinese Journal of Oil Crop Sciences, 36, 98–105.
Howlett, B. J. (2004). Current knowledge of the interaction between Brassica napus and Leptosphaeria maculans. Canadian Journal of Plant Pathology, 26, 245–252.
Juska, A., Busch, L., & Tanaka, K. (1997). The blackleg epidemic in Canadian rapeseed as a “normal agricultural accident”. Ecological Applications, 7, 1350–1356.
Kaczmarek, J., Jedryczka, M., Cools, H. J., Fitt, B. D. L., Lucas, J. A., & Latunde-Dada, A. O. (2012). Quantitative PCR analysis of abundance of airborne propagules of Leptosphaeria species in air samples from different regions of Poland. Aerobiologia, 28, 199–212.
Latunde-Dada, A. O., & Lucas, J. A. (2007). Localized hemibiotrophy in Colletotrichum: cytological and molecular taxonomic similarities and C. destructivum, C. linicola and C. truncatum. Plant Pathology, 56, 437–447.
Li, C. X., Wratten, N., Salisbury, P. A., Burton, W. A., Potter, T. D., Walton, G., Li, H., Sivasithamparam, K., Banga, S. S., Banga, S., Singh, D., Liu, S. Y., Fu, T. D., & Barbetti, M. J. (2008). Response of Brassica napus and B. juncea germplasm from Australia, China and India to Australian populations of Leptosphaeria maculans. Australasian Plant Pathology, 37, 162–170.
Li, Q. S., Rong, S. B., Hu, B. C., Jiang, Y. F., Hou, S. M., Fei, W. X., Chen, F. X., Wu, X. J., Fan, Z. X., & Lei, W. X. (2013). Distribution of blackleg disease on oilseed rape in China and its pathogen identification. Chinese Journal of Oil Crop Sciences, 35, 415–423. in Chinese.
Liu, S. Y., Liu, Z., Fitt, B. D. L., Evans, N., Foster, S. J., Huang, Y. J., Latunde-Dada, A. O., & Lucas, J. A. (2006). Resistance of Leptosphaeria maculans (phoma stem canker) in Brassica napus (oilseed rape) induced by L. biglobosa and chemical defence activators in field and controlled environments. Plant Pathology, 55, 401–412.
Mahuku, G. S., Hall, R., & Goodwin, P. H. (1996). Distribution of Leptosphaeria maculans in two fields in southern Ontario as determined by the polymerase chain reaction. European Journal of Plant Pathology, 102, 569–576.
Mendes-Pereira, E., Balesdent, M. H., Brun, H., & Rouxel, T. (2003). Molecular phylogeny of the Leptosphaeria maculans-L. biglobosa species complex. Mycological Research, 107, 1287–1304.
Moreno-Rico, O., Séguin-Swartz, G., Nettleton, J. A., Luna-Ruiz, J. J., Frias-Treviño, A. G., & Romero-Cova, S. (2002). Mexican isolates of Leptosphaeria maculans belong to the aggressive strain of the fungus. Canadian Journal of Plant Pathology, 24, 69–73.
Nei, M. (1972). Genetic distance between populations. American Naturalist, 106, 283–296.
Nei, M. (1978). Estimation of average heterozygosity and genetic distance from a small number of individuals. Genetics, 89, 583–590.
Nei, M. (1987). Molecular evolutionary genetics. New York: Columbia University Press.
Payne, R. W., Harding, S. A., Murray, D. A., Soutar, D. M., Baird, D. B., Glaser, A. I., Welham, S. J., Gilmour, A. R., Thompson, R., & Webster, R. (2011). The Guide to GenStat Release 14, Part 2: Statistics (p. 997). Hemel Hempstead: VSN International Ltd.
Pongam, P., Osborn, T. C., & Williams, P. H. (1999). Assessment of genetic variation among Leptosphaeria maculans isolates using pathogenicity data and AFLP analysis. Plant Disease, 83, 149–154.
Purwantara, A., Barrins, J. M., Cozijnsen, A. J., Ades, P. K., & Howlett, B. J. (2000). Genetic diversity of isolates of the Leptosphaeria maculans species complex from Australia, Europe and North America using amplified fragment length polymorphism analysis. Mycological Research, 104, 772–781.
Rouxel, T., & Balesdent, M. H. (2005). The stem canker (blackleg) fungus, Leptosphaeria maculans, enters the genomic era. Molecular Plant Pathology, 6, 225–241.
Saitou, N., & Nei, M. (1987). The neighbor-joining method: A new method for reconstructing phylogenetic trees. Molecular Biology and Evolution, 4, 406–425.
Tamura, K., Nei, M., & Kumar, S. (2004). Prospects for inferring very large phylogenies by using the neighbor-joining method. Proceedings of the National Academy of Sciences (USA), 101, 11030–11035.
Tamura, K., Dudley, J., Nei, M., & Kumar, S. (2007). MEGA4: Molecular evolutionary genetics analysis (MEGA) software version 4.0. Molecular Biology and Evolution, 24, 1596–1599.
Toscano-Underwood, C., West, J. S., Fitt, B. D. L., Todd, A. D., & Jedryczka, M. (2001). Development of phoma lesions on oilseed rape leaves inoculated with ascospores of A‐group or B‐group Leptosphaeria maculans (stem canker) at different temperatures and wetness durations. Plant Pathology, 50, 28–41.
Van de Wouw, A. P., Thomas, V. L., Cozijnsen, A. J., Marcroft, S. J., Salisbury, P. A., & Howlett, B. J. (2008). Identification of Leptosphaeria biglobosa ‘canadensis’ on Brassica juncea stubble from northern New South Wales, Australia. Australasian Plant Disease Notes, 3, 124–128.
Vincenot, L., Balesdent, M. H., Li, H., Barbetti, M. J., Sivasithamparam, K., Gout, L., & Rouxel, T. (2008). Occurrence of a new subclade of Leptosphaeria biglobosa in Western Australia. Phytopathology, 98, 321–329.
Voigt, K., Cozijnsen, A. J., Kroymann, J., Pöggeler, S., & Howlett, B. J. (2005). Phylogenetic relationships between members of the crucifer pathogenic Leptosphaeria maculans species complex as shown by mating type (MAT1-2), actin, and β-tubulin sequences. Molecular Phylogenetics and Evolution, 37, 541–557.
West, J. S., Evans, N., Liu, S., Hu, B., & Peng, L. (2000). Leptosphaeria maculans causing stem canker of oilseed rape in China. Plant Pathology, 49, 800.
West, J. S., Kharbanda, P. D., Barbetti, M. J., & Fitt, B. D. L. (2001). Epidemiology and management of Leptosphaeria maculans (phoma stem canker) on oilseed rape in Australia, Canada and Europe. Plant Pathology, 50, 10–27.
West, J. S., Balesdent, M. H., Rouxel, T., Nancy, J. P., Huang, Y. J., Roux, J., Steed, J. M., Fitt, B. D. L., & Schmit, J. (2002). Colonisation of winter oilseed rape tissues by A/Tox+ and B/Tox0 Leptosphaeria maculans (phoma stem canker) in France and England. Plant Pathology, 51, 311–321.
Williams, R. H., & Fitt, B. D. L. (1999). Differentiating A and B groups of Leptosphaeria maculans, causal agent of stem canker of winter oilseed rape in the UK. Plant Pathology, 46, 161–175.
Yeh, F. C., Yang, R. C., Boyle, T., Ye, Z. H., & Mao, J. X. (1997). POPGENE: the user-friendly shareware for population genetic analysis. Molecular Biology and Biotechnology Centre, University of Alberta, Canada. (Available at http://www.ualberta.ca/~fyeh/).
Zhang, X., White, R. P., Demir, E., Jedryczka, M., Lauge, R. M., Islam, M., Li, Z. Q., Huang, Y. J., Hall, A. M., Zhou, G., Wang, Z., Cai, X., Skelsey, P., & Fitt, B. D. L. (2014). Leptosphaeria spp., phoma stem canker and potential spread of L. maculans on oilseed rape crops in China. Plant Pathology, 63, 598–612.
Zhou, Y., Fitt, B. D. L., Welham, S. J., Gladders, P., Sansford, C. E., & West, J. S. (1999). Effects of severity and timing of stem canker (Leptosphaeria maculans) symptoms on yield of winter oilseed rape (Brassica napus) in the UK. European Journal of Plant Pathology, 105, 715–728.
Acknowledgments
This work was supported by the China Scholarship Council, Perry Foundation, Henry Lester Trust and Great Britain-China Education Trust, and the University of Hertfordshire. Rothamsted Research receives funding from the UK Biotechnology and Biological Sciences Research Council. The authors thank Aiming Qi for assistance with the analysis of the AFLP data, Jonathan West, Maria Eckert, Malgorzata Jedryczka, Hortense Brun, Marie-Hélène Balesdent, Randy Kutcher and Dilantha Fernando for providing isolates of L. biglobosa, Yongju Huang and John Hood for assistance with controlled environmental experiments, Georgia Mitrousia and Kevin King for assistance with the figures and molecular biological work, QiangSheng Li for Fig. 2a and b, and with Ziqin Li and many others for collecting diseased oilseed rape stems from China and other countries.
Author information
Authors and Affiliations
Corresponding author
Additional information
Ze Liu and Akinwumi O. Latunde-Dada to be regarded as joint first authors of this paper
Electronic supplementary material
Below is the link to the electronic supplementary material.
ESM 1
(GIF 49 kb)
Supplementary Table 1
(DOC 120 kb)
ESM 2
(PDF 66 kb)
Rights and permissions
About this article
Cite this article
Liu, Z., Latunde-Dada, A.O., Hall, A.M. et al. Phoma stem canker disease on oilseed rape (Brassica napus) in China is caused by Leptosphaeria biglobosa ‘brassicae’. Eur J Plant Pathol 140, 841–857 (2014). https://doi.org/10.1007/s10658-014-0513-7
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10658-014-0513-7