Pathogen diversity and screening for minor gene resistance to Pyrenophora teres f. teres in barley and its use for plant breeding

Author

H. Wallwork, 

M. Butt, 

E. Capio

Original Paper

First Online: 

30 July 2016

DOI: 10.1007/s13313-016-0433-4

Cite this article as: 

Wallwork, H., Butt, M. & Capio, E. Australasian Plant Pathol. (2016). doi:10.1007/s13313-016-0433-4

Abstract

The diversity of isolates of Pyrenophora teres f. teres, the causal agent of net form net blotch (NFNB), was studied using a set of 24 Australian barley varieties. Screening at the seedling and adult plant stages was used to detect and demonstrate the relative importance of resistance at both growth stages. The results showed that almost all isolates vary in virulence as expected from a sexually reproducing population and the measure of diversity is mainly limited by the number of differential varieties/lines used in the tests. The recent history of virulence changes in the South Australian pathogen population is described and illustrated through NFNB pathotype tests. Pathotype evidence for durable resistance in commercial varieties is demonstrated. The methods used for pathotype analysis are applicable for the breeding and selection of durable resistance for NFNB in barley.

References

1. Cakir M, Gupta S, Platz GJ, Ablett GA, Loughman R, Emebiri LC, Poulsen D, Li CD, Lance RCM, Galwey NW, Jones MGK, Appels R (2003) Mapping and validation of the genes for resistance to Pyrenophora teres f. teres in barley (Hordeum vulgare L.) Aus. J Agric Res 54:1369–1377CrossRef
2. Cherif M, Rezgui S, von Korff M, Baum M, Harrabi M (2008) Mapping of quantitative trait loci for net blotch resistance in Tunisian barley. Proceedings of the 10th International Barley Genetics Symposium, 5–10 April Alexandria, Egypt
3. Cromey MG, Parkes RA (2003) Pathogenic variation in Dreschlera teres in New Zealand. New Zealand Plant Protection 56:251–256
4. Gupta S, Loughman R (2001) Current virulence of Pyrenophora teres on barley in Western Australia. Plant Dis 85:960–966CrossRef
5. Liu ZH, Zhong S, Stasko AK, Edwards MC, Friesen TL (2012) Virulence profile and genetic structure of a North Dakota population of Pyrenophora teres f. teres, the causal agent of net form net blotch of barley. Phytopathology 102:539–546CrossRefPubMed
6. Platz G, Wallwork H, Butt M, Barsby J (2009) A new pathotype of net form net blotch in South Australia. 14th Australian Barley Technical Symposium, Sunshine Coast, Australia 13-16th September 2009
7. Raman H, Platz GJ, Chalmers KJ, Raman R, Read BJ, Barr AR, Moody DB (2003) Mapping of genomic regions associated with net form of net blotch resistance in barley. Aust J Agric Res 54:1359–1367CrossRef
8. Robinson J, Jalli M (1996) Diversity among Finnish net blotch isolates and resistance in barley. Euphytica 92:81–87CrossRef
9. Steffenson BJ, Webster RK (1992) Quantitative resistance to Pyrenophora teres f. teres in barley. Phytopathology 82:407–411CrossRef
10. Steffenson BJ, Hayes PM, Kleinhofs A (1996) Genetics of seedling and adult plant resistance to net blotch (Pyrenophora teres f. teres) and spot blotch (Cochliobolus sativus) in barley. Theor Appl Genet 92:552–558CrossRefPubMed
11. Usher T, Delacy I, Platz G, Barsby J (2009) Rapid Detection of adult plant resistance to net form net blotch. 14th Australian Barley Technical Symposium, Sunshine Coast, Australia 13-16th September 2009

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