Targeted mutagenesis of Arabidopsis thaliana using engineered TAL effector nucleases.

Targeted mutagenesis of Arabidopsis thaliana using engineered TAL effector nucleases.
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使用工程化 TAL 效应核酸酶对拟南芥进行靶向诱变

DOI:
10.1534/g3.113.007104
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发表时间:
2013-10-03
期刊:
G3 (Bethesda, Md.)
影响因子:
--
通讯作者:
Voytas DF
Voytas DF
中科院分区:
其他
文献类型:
--
作者:
Christian M;Qi Y;Zhang Y;Voytas DF

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自定义TAL效应核酸酶(TALEN)越来越多地被用作体内基因组操纵的试剂。在这里,我们使用TALENS来修改模式植物拟南芥的基因组。我们设计了7个针对5个拟南芥基因的TALEN,分别是ADH1、TT4、MAPKKK1、DSK2B和NAA2。在表达TALEN的池苗中,我们观察到所有七个TALEN的预定靶点的体细胞突变频率从2-15%不等。在表达TALENS的单株转基因植株中,体细胞诱变率高达41%-73%。此外,一对针对随机复制基因的TALEN在体细胞中诱导了4.4kb的缺失。对于最活跃的TALEN对,即针对ADH1和NAA2的TALEN对,我们发现TALEN诱导的突变以1.5-12%的频率传递给下一代。我们的工作表明,TALEN是在这个重要的植物模型中实现定向突变的有用试剂。
Custom TAL effector nucleases (TALENs) are increasingly used as reagents to manipulate genomes in vivo. Here, we used TALENs to modify the genome of the model plant, Arabidopsis thaliana. We engineered seven TALENs targeting five Arabidopsis genes, namely ADH1, TT4, MAPKKK1, DSK2B, and NATA2. In pooled seedlings expressing the TALENs, we observed somatic mutagenesis frequencies ranging from 2–15% at the intended targets for all seven TALENs. Somatic mutagenesis frequencies as high as 41–73% were observed in individual transgenic plant lines expressing the TALENs. Additionally, a TALEN pair targeting a tandemly duplicated gene induced a 4.4-kb deletion in somatic cells. For the most active TALEN pairs, namely those targeting ADH1 and NATA2, we found that TALEN-induced mutations were transmitted to the next generation at frequencies of 1.5–12%. Our work demonstrates that TALENs are useful reagents for achieving targeted mutagenesis in this important plant model.
DOI: 10.1101/gr.089417.108
发表时间: 2009-07-01
期刊: GENOME RESEARCH
影响因子: 7
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影响因子: 11.1
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DOI: 10.1126/science.1232033
发表时间: 2013-02-15
期刊: Science (New York, N.Y.)
影响因子: --
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通讯作者: Church GM