Genetic analysis of leaffolder resistance in rice
Genetic analysis of leaffolder resistance in rice
复制标题
水稻叶螟抗性的遗传分析。
DOI：
10.1016/s1673-8527(09)60050-3
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发表时间：
2010-05-01
影响因子：
5.9
通讯作者：
Qian, Qian
中科院分区：
文献类型：
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作者：
Rao, Yuchun;Dong, Guojun;Qian, Qian
以120个典型籼粳杂交品种‘CJ06’/‘TN1’花药培养的双单倍体（DH）群体为材料，研究了水稻叶枯病抗性的遗传基础。利用构建的分子连锁图谱，在染色体1、2、3、4和8上检测到5个卷叶qtl。3、4、8号染色体上来自CJ06的阳性等位基因增强了对水稻叶枯病的抗性，1、2号染色体上来自TN1的阳性等位基因也增强了对叶枯病的抗性。鉴定和测试了qtl间的相互作用，获得了4个水稻叶枯病抗性的条件相互作用。这些位点分别位于第2、9、10和11号染色体上。QTL金字塔分析表明，阳性等位基因影响对叶病的抗性。并讨论了该数据在水稻育种中的应用前景。
A double haploid (DH) population, which consists of 120 lines derived from anther culture of a typical indica and japonica hybrid 'CJ06'/'TN1', was used to investigate the genetic basis for rice leaffolder resistance. Using a constructed molecular linkage map, five QTLs for rolled leaves were detected on chromosomes 1, 2, 3, 4, and 8. The positive alleles from CJ06 on chromosomes 3, 4, and 8 increased the resistance to rice leaffolder, and the alleles from TN1 on chromosomes 1 and 2 also enhanced resistance to leaffolder. The interactions between QTLs were identified and tested, and four conditional interactions were acquired for resistance to rice leaffolder. These loci were located on chromosomes 2, 9, 10, and 11, respectively. QTL pyramiding indicated that the positive alleles affect resistance to leaffolder. The prospective application of this data in rice breeding was also discussed.