J Integr Plant Biol. ›› 2007, Vol. 49 ›› Issue (1): 112-119.DOI: 10.1111/j.1744-7909.2006.00413.x

Special Issue: Rice Genomics and Agriculture

• Invited Expert Reviews • Previous Articles     Next Articles

Recent Advances in Cloning and Characterization of Disease Resistance Genes in Rice

Liang-Ying Dai, Xiong-Lun Liu, Ying-Hui Xiao and Guo-Liang Wang   

  • Published:2007-01-01

Abstract:

Rice diseases caused by fungi, bacteria and viruses are one of the major constraints for sustainable rice (Oryza sativa L.) production worldwide. The use of resistant cultivars is considered the most economical and effective method to control rice diseases. In the last decade, a dozen resistance genes against the fungal pathogen Magnaporthe grisea and the bacterial pathogen Xanthomonas oryzae pv. oryzae have been cloned. Approximately half of them encode nuclear binding site (NBS) and leucine rich repeat (LRR)-containing proteins, the most common type of cloned plant resistance genes. Interestingly, four of them encode novel proteins which have not been identified in other plant species, suggesting that unique mechanisms might be involved in rice defense responses. This review summarizes the recent advances in cloning and characterization of disease resistance genes in rice and presents future perspectives for in-depth molecular analysis of the function and evolution of rice resistance genes and their interaction with avirulence genes in pathogens.Author for correspondence. Tel: +1 614 292 9280; E-mail: wang.620@osu.edu

Key words: rice blast, bacterial blight, Oryza sativa, Magnaporthe grisea, Xanthomonas oryzae pv. oryzae.

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