Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2007, Vol. 23 ›› Issue (6): 601-601.

Special Issue: 生物技术 玉米

• 农业信息科学 • Previous Articles     Next Articles

Construction of Consensus Map of Resistance Gene in Maize

Zhang Shuhong, Zhang Shihuang, Li Xinhai, Xi Zhangying   

  • Online:2007-06-05 Published:2007-06-05

Abstract: Identification and fine mapping of resistance genes could provide useful information for setting molecular breeding strategy. In this paper, resistance genes in maize genomic database and references were explored, and the consensus map was constructed with the aid of high-density linkage map IBM 2005 neighbors and the adjacent markers to each major gene or QTL. Consequently, a total of 78 major genes or QTLs involving in resistance to 14 maize diseases were screened out. The results demonstrated that the number of resistance gene distributed on 10 chromosomes asymmetrically, large number of major resistance genes was located on chromosome 3, 6 and 10, and few on chromosome 5 and 7, and resistance gene cluster were found obviously. The results would be valuable for identification of new resistance gene and construction molecular marker-assisted selection strategy for disease resistance in maize.

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