Vol.26 No.4（2004 August）：362-366

Breeding Strategies of Resistance to Plant Virus

Xiang-Tan Yao, Jia-Shu Cao*, Jin-Yu Li, Shen-Yun Wang

（Institute of Vegetable Science, Zhejiang University, Hangzhou 310029, China）

Abstract: To obtain virus-resistant host plants, many studies have been done by plant breeders, and a range of operational strategies were found now. Plants obtain resistance by using natural immune hypersensitivity and dominant resistance genes. The resistance might be obtained by plant pathogen-derived resistance (PDR) strategies, such as the use of the virus coat protein genes, virus replicase genes, virus movement protein genes, virus satellite RNA and antisense RNA. The phenomenon of post-translational RNA silencing to mediate virus resistance (RMVR) have been wildly studied for virus resistance as well. In addition to using of R-genes, PDR and RMVR, other strategies, including the use of pokeweed antiviral protein (PAP), 2', 5'-oligoadenylate synthetase, "plantibodies" and peptide, were applied in some case.

Key words: plant virus; resistance genes (R genes); pathogen-derived resistance; coat-protein derived resistance; RNA mediated virus resistance

*Corresponding author. Tel: 86-571-86971188, Fax: 86-571-86971188, E-mail: jshcao@zju.edu.cn