ACTA AGRICULTURAE BOREALI-SINICA ›› 2019, Vol. 34 ›› Issue (S1): 1-5. doi: 10.7668/hbnxb.201751449

Special Issue: Rice Saline-alkali stress

• Crop Genetics·Germplasm Resources·Biotechnology • Previous Articles     Next Articles

Mapping of Salt Tolerance QTLs at Seedling Stage of Landrace Rice

LIN Jing, ZHANG Yunhui, CHEN Haiyuan, ZHU Xiaomei, ZHANG Suobing, WANG Yingjie, FANG Xianwen   

  1. Institute of Crop Germplasm and Biotechnology, Jiangsu Academy of Agricultural Sciences, Jiangsu Provincial Platform for Conservation and Utilization of Agriculture Germplasm, Nanjing 210014, China
  • Received:2019-10-26 Published:2019-12-28

Abstract: The identification of salt tolerant genetic loci in rice can provide study basis for the molecular mechanism of salt tolerance and gene resources for improving salt tolerant cultivars. Recombinant inbred lines (RILs) derived from Zhaxima, a landrace indica variety from Yunnan Province and Nanjing 46, an elite japonica varirty with superior grain quality from Jiangsu Province were used. The salt tolerance at seedling stage of the RIL population were investigated as the phenotypic value. Combined with the linkage map, a total of 4 QTLs were detected: qSST-1,qSST-3,qSST-5 and qSST-11 ,located in rice chromosome 1, 3, 5 and 11, respectively. All positive alleles were from the parent Nanjing 46. These QTLs were not included in the same chromosome interval as the cloned rice salt tolerance genes, and thus were described as new candidate gene loci associated with seedling stage salt tolerance. The results supplies important information for further exploration and utilization of new salt tolerant QTLs in rice.

Key words: Oryza sativa L., Seedling stage, Salt tolerant, QTL

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Cite this article

LIN Jing, ZHANG Yunhui, CHEN Haiyuan, ZHU Xiaomei, ZHANG Suobing, WANG Yingjie, FANG Xianwen. Mapping of Salt Tolerance QTLs at Seedling Stage of Landrace Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2019, 34(S1): 1-5. doi: 10.7668/hbnxb.201751449.

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