In vitro selection for Russian wheat aphid (Diuraphis noxia) resistance in wheat (Triticum aestivum)

The Russian wheat aphid (Diuraphis noxia) is a pest on wheat (Triticum aestivum) in many regions of the world. The aphid injects a phytotoxin when it feeds. Identification of somaclonal variants with phytotoxin resistance may shorten development time for resistance. Wheat calli from the susceptible...

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Bibliographic Details
Published in:Plant cell reports 1993-04, Vol.12 (6), p.312-315
Main Authors: ZEMETRA, R. S, SCHOTZKO, D. J, SMITH, C. M, LAUVER, M
Format: Article
Language:English
Subjects:
Agronomy. Soil science and plant productions
Biological and medical sciences
Fundamental and applied biological sciences. Psychology
Genetics and breeding of economic plants
Invertebrates
Pest animals
Pest resistance
Varietal selection. Specialized plant breeding, plant breeding aims
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Summary:The Russian wheat aphid (Diuraphis noxia) is a pest on wheat (Triticum aestivum) in many regions of the world. The aphid injects a phytotoxin when it feeds. Identification of somaclonal variants with phytotoxin resistance may shorten development time for resistance. Wheat calli from the susceptible cultivar 'Stephens' were exposed to an extract from the aphid. Five plants were regenerated from 100 treated calli. Resistance to the aphid was observed in both the R2 and R3 generations. One of the six R3 populations had improved resistance for leaf curling and leaf folding, while another had improved response for chlorosis damage. These results indicate that the use of aphid extract on wheat callus offers an alternate method for development of resistance to the Russian wheat aphid.
ISSN:0721-7714
1432-203X
DOI:10.1007/BF00237425