Induction of chromosomal inversion by integration of T-DNA in the rice genome

Chuanfeng Zhu; Jiahe Wu; Chaozu He

doi:10.1016/S1673-8527(09)60037-0

Volume 37 Issue 3

Mar. 2010

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Article Navigation > Journal of Genetics and Genomics > 2010 > 37(3): 189-196

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Induction of chromosomal inversion by integration of T-DNA in the rice genome

doi: 10.1016/S1673-8527(09)60037-0

State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China

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Corresponding author: E-mail address: hecz@im.ac.cn (Chaozu He)
Received Date: 2009-11-25
Accepted Date: 2010-02-18
Rev Recd Date: 2010-02-02

Available Online: 2010-03-27

Publish Date: 2010-03-20

Abstract

Abstract

Transfer DNA (T-DNA) of Agrobacterium tumefaciens integration in the plant genome may lead to rearrangements of host plant chromosomal fragments, including inversions. However, there is very little information concerning the inversion. The present study reports a transgenic rice line selected from a T-DNA tagged population, which displays a semi-dwarf phenotype. Molecular analysis of this mutant indicated an insertion of two tandem copies of T-DNA into a locus on the rice genome in a head to tail mode. This insertion of T-DNA resulted in the inversion of a 4.9 Mb chromosomal segment. Results of sequence analysis suggest that the chromosomal inversion resulted from the insertion of T-DNA with the help of sequence microhomology between insertion region of T-DNA and target sequence of the host plant.
- T-DNA,
- chromosomal inversion

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References(24)

References

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