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

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

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 re- ports a transgenic rice line selected from...

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Veröffentlicht in:Journal of genetics and genomics 2010 (3), p.189-196
1. Verfasser: Chuanfeng Zhu Jiahe Wu Chaozu He
Format: Artikel
Sprache:chi
Schlagworte:
DNA整合
DNA片段
倒置
序列分析
植物基因组
植物染色体
水稻基因组
诱导
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creator Chuanfeng Zhu Jiahe Wu Chaozu He
description 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 re- ports 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.
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source Elsevier ScienceDirect Journals Complete; Alma/SFX Local Collection
subjects DNA整合
DNA片段
倒置
序列分析
植物基因组
植物染色体
水稻基因组
诱导
title Induction of chromosomal inversion by integration of T-DNA in the rice genome
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