Wheat Relative as Possible Source of Fungal Resistance Genes
August 17, 2007| |
Researchers from the University of Minnesota and the Institute for Cereal Crops Improvement at Tel Aviv University have shown that Sharon goatgrass (Aegilops sharonensis), a wild relative of cultivated wheat native to Israel and Lebanon, exhibits resistance to a number of fungal diseases that threaten much of the world’s wheat crops. Such diseases include powdery mildew, leaf and stem rust, spot blotch and tan spot. Sharon goatgrass is therefore a possible source of resistance genes that can be introduced to commonly cultivated wheat varieties.
From a total of 107 samples that were exposed to different fungal diseases, up to 80 percent showed resistance to powdery mildew and leaf rust, infections that cause much of the world’s wheat crop loss. The samples also showed least resistance to the Fusarium head blight. To realize the possibility of introducing the resistance genes to common wheat cultivars, studies are currently being made regarding the genetics of A. sharonensis and the mode of inheritance of the resistance genes.
Read the article published by the journal Plant Disease at http://www.apsnet.org/pd/SubscriberContent/2007/PDIS-91-8-0942.pdf
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