Pyramiding Resistance Genes to Northern Leaf Blight and Head Smut in Maize
文献类型: 外文期刊
第一作者: Wu Suwen
作者: Wu Suwen;Zhang Chunyu;Li Nan;Sun Quan;Miao Qing;Lin Feng;Khalid, Hussain;Jiang Min
作者机构:
关键词: Maize;Northern corn leaf blight;Head smut;Pyramiding;MAS
期刊名称:INTERNATIONAL JOURNAL OF AGRICULTURE AND BIOLOGY ( 影响因子:0.822; 五年影响因子:0.906 )
ISSN: 1560-8530
年卷期: 2012 年 14 卷 3 期
页码:
收录情况: SCI
摘要: Northern leaf blight (NLB) and head smut are two important diseases of maize (Zea mays) in China. The use of resistant cultivars is the most effective, economical and environmentally friendly means to cope with these diseases. For combining alleles for resistance to both NLB and head smut, parental inbred Ent17 with NLB resistance and parental inbred Ent12 with head smut resistance were crossed. The resistance screening for F-2, F-3 generations of the cross Ent17xEnt12 were conducted based on the phenotypic values and marker assisted-selection. Two pyramided lines carrying Ht1, Ht2 and head smut resistance QTL, three lines carrying Ht1 and head smut resistance QTL were found. The result revealed that lines carrying Ht1, Ht2 and head smut QTL had resistance level and yield over donor Ent17, Ent12, lines carrying Ht1 and Ht2, and lines carrying Ht1 and head smut QTL, suggesting that marker assisted-selection strategy can be used effectively to select high yielding and resistance level in breeding materials in maize. (C) 2012 Friends Science Publishers
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