关键词: 玉米;病害;抗病QTL;抗病基因

Abstract:

A wide range of pathogenic microorganisms, including fungi, bacteria, viruses and oomycetes, induce diseases on leaf, florescence, stalk and root of maize, and pose a grave threat on maize production. Maize is a cross-pollinated crop and rich in genetic resource. Maize has highly diverse in genome architecture and contains a huge number of qualitative and quantitative resistance loci. During the past few years, a great progress has been made towards the gene-mapping and exploration of major disease resistance gene/QTL in maize. Until now, at least 4 major resistance genes were cloned and a number of candidate genes were obtained, along with large-scale mapping of numerous resistance gene/QTL. These researches greatly accelerated marker-assisted introgression or polymerization of resistance genes/QTLs into high-yield potential but susceptible maize lines, and this is proved to be very efficiency in resistance breeding program. In this paper, we summarized the recent progress on maize resistance to major diseases caused by fungi, viruses, bacteria and oomycetes.

Key words: maize, disease, disease resistant QTL, disease resistant gene