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Citation:

Variation of Non-target Wood Properties of Multi-gene Transgenic Populus × euramericana ‘Guariento’

  • Received Date: 2014-08-01
  • In this study, the transgenic poplar (Populus × euramericana‘Guariento’) harboring five exogenous genes (SacB, Vgb, BtCry3A, OC-I and JERF36#) and the control plants were selected, comparing the wood property variation of 5-year-old trees, and trying to understand whether the transgenic of exogenous genes produce unintended effects. The results showed that the transgenic of exogenous genes caused a wide range of variation in non-target wood properties, the variations were found not only between transgenic and wild-type lines, but also among transgenic lines. Compared with the control, the transgenic lines, the contents of holocellulose and cellulose increased, the total lignin and acid soluble lignin decreased, the fiber length, the fiber width, the microfibril angle and the acid insoluble lignin varied uncertainly. It is concluded that the introduced exogenous gene could generate unintended effects on corresponding non-target target traits.
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Variation of Non-target Wood Properties of Multi-gene Transgenic Populus × euramericana ‘Guariento’

  • 1. State Key Laboratory of Tree Genetics and Breeding Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China
  • 2. Forestry Science Academy of Shandong, Shandong Provincial Key Lab. of Forest Tree Genetic Improvement, Ji'nan 250014, Shandong, China

Abstract: In this study, the transgenic poplar (Populus × euramericana‘Guariento’) harboring five exogenous genes (SacB, Vgb, BtCry3A, OC-I and JERF36#) and the control plants were selected, comparing the wood property variation of 5-year-old trees, and trying to understand whether the transgenic of exogenous genes produce unintended effects. The results showed that the transgenic of exogenous genes caused a wide range of variation in non-target wood properties, the variations were found not only between transgenic and wild-type lines, but also among transgenic lines. Compared with the control, the transgenic lines, the contents of holocellulose and cellulose increased, the total lignin and acid soluble lignin decreased, the fiber length, the fiber width, the microfibril angle and the acid insoluble lignin varied uncertainly. It is concluded that the introduced exogenous gene could generate unintended effects on corresponding non-target target traits.

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