Editing of the urease gene by CRISPR-Cas in the diatom Thalassiosira pseudonana.
Editing of the urease gene by CRISPR-Cas in the diatom Thalassiosira pseudonana.
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DOI:
10.1186/s13007-016-0148-0
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发表时间:
2016
期刊:
影响因子:
5.1
通讯作者:
Mock T
中科院分区:
文献类型:
--
作者:
Hopes A;Nekrasov V;Kamoun S;Mock T
CRISPR-Cas is a recent and powerful addition to the molecular toolbox which allows programmable genome editing. It has been used to modify genes in a wide variety of organisms, but only two alga to date. Here we present a methodology to edit the genome of Thalassiosira pseudonana, a model centric diatom with both ecological significance and high biotechnological potential, using CRISPR-Cas. A single construct was assembled using Golden Gate cloning. Two sgRNAs were used to introduce a precise 37 nt deletion early in the coding region of the urease gene. A high percentage of bi-allelic mutations (≤61.5%) were observed in clones with the CRISPR-Cas construct. Growth of bi-allelic mutants in urea led to a significant reduction in growth rate and cell size compared to growth in nitrate. CRISPR-Cas can precisely and efficiently edit the genome of T. pseudonana. The use of Golden Gate cloning to assemble CRISPR-Cas constructs gives additional flexibility to the CRISPR-Cas method and facilitates modifications to target alternative genes or species. The online version of this article (doi:10.1186/s13007-016-0148-0) contains supplementary material, which is available to authorized users.
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影响因子:
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通讯作者:
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Jinek, Martin;Chylinski, Krzysztof;Charpentier, Emmanuelle
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