Chinese Science Bulletin

, Volume 46, Issue 2, pp 101–106 | Cite as

Inheritance and expression of multiple disease and insect resistance genes in transgenic rice



2–3 anti-fungal disease genes are coinserted with hygromycin phosphotransferase in the same vector. Two insecticidal genes and PPT acetyl transferase genes are placed in another one. The vectors are co-delivered to rice embryonic cellus tissue at a molar ratio of 1 : 1 using the particle gun method. 55 independent regenerated lines have been obtained through screening for hygromycin resistance. Of these, 70% transgenic plants harbor 6–7 foreign genes. The genes on the same vectors are always co-delivered to rice plant. Northern blot analysis has indicated that the multiple foreign genes give stable expression. In the 6 transgenic plants carrying 6–7 foreign genes, multiple foreign genes tend to integrate in 1 or 2 genetic loci. Progeny segregation is consistent with Mendel’s 3 : 1 segregation law. 8 homozygous R1 transgenic plants harboring 2–3 anti-fungal and 2 insecticidal genes are selected from large number of transgenic progeny screening for hygromycin and Basta resistance.


rice biolistic multiple gene transfer anti-fungal gene insecticidal gene 


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Copyright information

© Science in China Press 2001

Authors and Affiliations

  • Daorong Feng
    • 1
  • Xinping Xu
    • 1
  • Guohua Qiu
    • 1
  • Baojian Li
    • 1
  1. 1.Biotechnology Research CenterZhongshan UniversityGuangzhouChina

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