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Acta Agron Sin ›› 2010, Vol. 36 ›› Issue (10): 1786-1790.doi: 10.3724/SP.J.1006.2010.01786

• RESEARCH ACTIVITIES • Previous Articles     Next Articles

Genetic Analyses of Silk Vigor in Maize

WU Xin1, 2,CUI Zi-Tian1,HU Yan-Min1,LIU Zong-Hua1,LI Shao-Wei2,WANG Jian-Wen2,TANG Ji-Hua1,*   

  1. 1 College of Agronomy, Henan Agricultural University, Zhengzhou 450002, China; 2 Institute of Food Crops, Kaifeng Academy of Agricultural and Forestry Sciences, Kaifeng 475004, China
  • Received:2010-01-02 Revised:2010-05-23 Online:2010-10-12 Published:2010-08-04

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Abstract: Silk vigor is an important trait that effects hybrid seed production and hybrid production in maize. For dissecting the genetic basis of silk vigor, a set of 203 recombinant inbred lines (RIL) population, which derived from the elite hybrid Nongda 108 (Huang C × Xu 178), were evaluated at three environments. The results showed that silk vigor of genotype had significant distinct at different environments. Eight different QTL were detected for silk vigor using composite interval mapping method, and located on chromosomes 3, 5, 6, 7, and 8, with 11.06%–20.82% phenotypic contribution of silk vigor, this study can aid to seed vigor selection in maize breeding.

Key words: Maize, silk vigor, QTL, analysis

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