共 45 条
Targeted transgene integration in plant cells using designed zinc finger nucleases
被引:157
作者:
Cai, Charles Q.
[1
]
Doyon, Yannick
[2
]
Ainley, W. Michael
[1
]
Miller, Jeffrey C.
[2
]
DeKelver, Russell C.
[2
]
Moehle, Erica A.
[2
]
Rock, Jeremy M.
[2
]
Lee, Ya-Li
[2
]
Garrison, Robbi
[1
]
Schulenberg, Lisa
[1
]
Blue, Ryan
[1
]
Worden, Andrew
[1
]
Baker, Lisa
[1
]
Faraji, Farhoud
[2
]
Zhang, Lei
[2
]
Holmes, Michael C.
[2
]
Rebar, Edward J.
[2
]
Collingwood, Trevor N.
[2
]
Rubin-Wilson, Beth
[1
]
Gregory, Philip D.
[2
]
Urnov, Fyodor D.
[2
]
Petolino, Joseph F.
[1
]
机构:
[1] Dow AgroSci LLC, Indianapolis, IN 46268 USA
[2] Sangamo BioSci, Richmond, CA 94804 USA
关键词:
Double strand DNA breaks;
Homology-directed repair;
Site-directed transgene integration;
Zinc finger nucleases;
DOUBLE-STRAND BREAKS;
AGROBACTERIUM-MEDIATED TRANSFORMATION;
HOMOLOGOUS RECOMBINATION;
ARABIDOPSIS-THALIANA;
GENE;
EXPRESSION;
GENOME;
RICE;
REPAIR;
DISRUPTION;
D O I:
10.1007/s11103-008-9449-7
中图分类号:
Q5 [生物化学];
Q7 [分子生物学];
学科分类号:
071010 ;
081704 ;
摘要:
Targeted transgene integration in plants remains a significant technical challenge for both basic and applied research. Here it is reported that designed zinc finger nucleases (ZFNs) can drive site-directed DNA integration into transgenic and native gene loci. A dimer of designed 4-finger ZFNs enabled intra-chromosomal reconstitution of a disabled gfp reporter gene and site-specific transgene integration into chromosomal reporter loci following co-transformation of tobacco cell cultures with a donor construct comprised of sequences necessary to complement a non-functional pat herbicide resistance gene. In addition, a yeast-based assay was used to identify ZFNs capable of cleaving a native endochitinase gene. Agrobacterium delivery of a Ti plasmid harboring both the ZFNs and a donor DNA construct comprising a pat herbicide resistance gene cassette flanked by short stretches of homology to the endochitinase locus yielded up to 10% targeted, homology-directed transgene integration precisely into the ZFN cleavage site. Given that ZFNs can be designed to recognize a wide range of target sequences, these data point toward a novel approach for targeted gene addition, replacement and trait stacking in plants.
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页码:699 / 709
页数:11
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