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http://dx.doi.org/10.5423/PPJ.2003.19.6.301

Loss-of-function and Gain-of-function Rice Mutants from Gamma-Ray Mutagenesis  

Lee, Seon-Woo (Biological Function Research Team, Korea Research Institute of Chemical Technology)
Park, Gyung-Ja (Biological Function Research Team, Korea Research Institute of Chemical Technology)
Kim, Jin-Cheol (Biological Function Research Team, Korea Research Institute of Chemical Technology)
Kim, Heung-Tae (Department of Agricultural Biology, Chungbuk National University)
Park, Yong-Ho (Biological Function Research Team, Korea Research Institute of Chemical Technology)
Cho, Kwang-Yun (Biological Function Research Team, Korea Research Institute of Chemical Technology)
Publication Information
The Plant Pathology Journal / v.19, no.6, 2003 , pp. 301-304 More about this Journal
Abstract
Gamma-ray irradiation is known to induce various mutations in plants caused by chromosome alterations. This study investigated disease responses of selected gamma-ray induced rice mutants generated from seven Japonica-type rice cultivars against three plant diseases. Among the tested 22 mutants, three gain-of-function mutants and six loss-of-function mutants against rice blast were obtained, as well as three loss-of-function mutants against bacterial leaf blight (BLB). Two of the loss-of-function mutants were susceptible to both rice blast and BLB. Gain-of-function mutation has not been frequently observed in rice plants, thus, the mutants can be used to identify loci of novel genes for the regulation of disease resistant response.
Keywords
Gain-of-function; gamma-ray; loss-of-function; rice mutants;
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