Single/low-copy integration of transgenes in Caenorhabditis elegans using an ultraviolet trimethylpsoralen method.
Single/low-copy integration of transgenes in Caenorhabditis elegans using an ultraviolet trimethylpsoralen method.
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DOI:
10.1186/1472-6750-12-1
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发表时间:
2012-01-05
影响因子:
3.5
通讯作者:
Mitani S
中科院分区:
文献类型:
--
作者:
Kage-Nakadai E;Kobuna H;Funatsu O;Otori M;Gengyo-Ando K;Yoshina S;Hori S;Mitani S
Transgenic strains of Caenorhabditis elegans are typically generated by injecting DNA into the germline to form multi-copy extrachromosomal arrays. These transgenes are semi-stable and their expression is silenced in the germline. Mos1 transposon or microparticle bombardment methods have been developed to create single- or low-copy chromosomal integrated lines. Here we report an alternative method using ultraviolet trimethylpsoralen (UV/TMP) to generate single/low-copy gene integrations. We successfully integrated low-copy transgenes from extrachromosomal arrays using positive selection based on temperature sensitivity with a vps-45 rescue fragment and negative selection based on benzimidazole sensitivity with a ben-1 rescue fragment. We confirmed that the integrants express transgenes in the germline. Quantitative PCR revealed that strains generated by this method contain single- or low-copy transgenes. Moreover, positive selection marker genes flanked by LoxP sites were excised by Cre recombinase mRNA microinjection, demonstrating Cre-mediated chromosomal excision for the first time in C. elegans. Our UV/TMP integration method, based on familiar extrachromosomal transgenics, provides a useful approach for generating single/low-copy gene integrations.
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DOI:
10.1006/bbrc.2000.2260
发表时间:
2000-03-05
影响因子:
3.1
作者:
Gengyo-Ando, K;Mitani, S
通讯作者:
Mitani, S
DOI:
10.1016/0027-5107(91)90131-7
发表时间:
1991-07-01
期刊:
MUTATION RESEARCH
影响因子:
--
作者:
STEWART, HI;ROSENBLUTH, RE;BAILLIE, DL
通讯作者:
BAILLIE, DL
影响因子:
3.7
作者:
Zeiser E;Frøkjær-Jensen C;Jorgensen E;Ahringer J
通讯作者:
Ahringer J
影响因子:
10.5
作者:
WAY, JC;WANG, L;WANG, A
通讯作者:
WANG, A
DOI:
10.1073/pnas.91.4.1381
发表时间:
1994-02-15
影响因子:
11.1
作者:
YANDELL, MD;EDGAR, LG;WOOD, WB
通讯作者:
WOOD, WB