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Acta Prataculturae Sinica ›› 2009, Vol. 18 ›› Issue (6): 51-58.

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Cloning of a chitinase gene and the acquisition of transgenic potato plants

ZHANG Ru1,2, LI Jin-hua1,3, CHAI Zhao-xiang3, ZHANG Jun-lian1,2, ZHANG Jin-wen2 , WANG Di1,2   

  1. 1.Gansu Key Lab of Crop improvement and Germplasm Enhancement, Gansu Agricultural University,
    Lanzhou 730070, China;
    2.College of Agronomy, Gansu Agricultural University, Lanzhou 730070,
    China;
    3.College of Grassland Science, Gansu Agricultural University, Lanzhou 730070, China
  • Received:2009-05-04 Online:2009-12-20 Published:2009-12-20

Abstract: The antagonistic ability of potato against fungal disease was enhanced by acquiring transgenic potato plants via gene engineering. A chitinase gene was cloned via PCR products from cDNA of Trichoderma atroviride. This gene was recombined into the plant expression vector p33ECR and transferred into micro tubers from flasks of two varieties (Favorita and Shepody) of potato via Agrobacterium tumefaciens-mediated transformation. After infection and co-culture, 18 transformed plants were acquired through Kanamycin and Carbenicillin screening tests. After PCR tests for transgenic plants, 67% of the plants (12 plantlets) were positive. This will give support for obtaining high biologically effective potato varieties in future research.

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