CN1607252A - Method for breeding transgenic zebra fish and its special plasmid - Google Patents
Method for breeding transgenic zebra fish and its special plasmid Download PDFInfo
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- CN1607252A CN1607252A CN 200310100452 CN200310100452A CN1607252A CN 1607252 A CN1607252 A CN 1607252A CN 200310100452 CN200310100452 CN 200310100452 CN 200310100452 A CN200310100452 A CN 200310100452A CN 1607252 A CN1607252 A CN 1607252A
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- apoaequorin
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Abstract
A method for culturing transgene zebra fish and special plasmid. The process is that, 1, construction of apoaequori express carrier which contains apoaequori coding gene, GATA2 control sequence of zebra fish and GFP expression frame led by Africa xenopus EF-1 alpha gene control sequence, 2, obtaining FO generation by recombined expression carrier transferred zebra fish fertilized egg in step 1, 3, FO generaton mating with zebra fish to get transgene zebra fish capable of expressing apoaequorin.
Description
Technical field
The present invention relates to a kind of method and special-purpose plasmid thereof of cultivating genetically engineered fish, particularly a kind of method and special-purpose plasmid thereof of cultivating transgenic zebrafish relates in particular to a kind of method and special-purpose plasmid thereof of the apoaequorin of cultivation transgenic zebrafish.
Background technology
Calcium ion is counted as the second messenger in the cell, at cell, transmits signal of interest between histoorgan, and the communication between mediation internal body and outside atmosphere is coordinated normal development, the functionating of biont by the expression of the quick transcription factor gene of regulation and control calcium.
Apoaequorin (E14215.1 GI:5708898 inGenbank) is a kind of luminescent protein of finding in the jellyfish, it and a kind of cofactor coelenterazine are combined into aequorin, aequorin produces coelenteramide with can decomposing automatically after calcium ion combines, apoaequorin, carbonic acid gas and a kind of blue-fluorescence.Can this optical signal be amplified and note by micro-imaging equipment.Therefore aequorin can be used as the calcium ion acceptor and detects calcium ion concn and variation.Mature methods is that apoaequorin and coelenterazine are injected directly in the viable cell or zygote to be studied now, detects the calcium ion signal by the photon picture reproducer.But along with cellular segregation, the apoaequorin in the daughter cell and coelenterazine can be fewer and feweri, detectable calcium signal can be more and more a little less than.
Transgenic technology can change a foreign gene in the host genome over to, and the foreign gene that changes over to can be expressed as host's endogenous gene in host cell.Zebra fish is the desirable vertebrates material that is used for transgenosis.In general, the transgenic technology of comparative maturity has the microinjection of linearizing recombinant plasmid and has the infecting of retrovirus of foreign gene.These two kinds of methods all are competent in the transgenic zebrafish kind system that obtains some amount, and wherein the former is relatively simple.
Expression of gene mainly is subjected to the cis-acting elements of the upstream of gene or intron (as promotor, enhanser etc.) regulation and control, the expression of foreign gene in transgenic animal is so equally, and its expression is subjected to being implemented in the control of the promotor in the expression vector.
The innovation and creation content
The method that the purpose of this invention is to provide the transgenic zebrafish that a kind of cultivation can stably express apoaequorin.
A kind of method of cultivating the apoaequorin transgenic zebrafish may further comprise the steps:
(1) make up the apoaequorin recombinant expression vector, described apoaequorin recombinant expression vector comprises GATA2 regulating and controlling sequence of apoaequorin encoding gene, zebra fish and the GFP expression cassette that is guided by Africa xenopus EF-1 α gene regulating sequence;
(2) transform zebra fish zygote with the recombinant expression vector in the step (1), obtain F0 generation;
(3), obtain to express the transgenic zebrafish of apoaequorin with the zebra fish mating of F0 generation with wild-type.
Wherein, the transgenic zebrafish that obtains in the step (3) can obtain the homozygote of transgenic zebrafish by traditional breeding method.The apoaequorin recombinant expression vector can pass through the apoaequorin encoding gene, GATA2 regulating and controlling sequence (the Anming M. of zebra fish, Hong T., Bruce A.O., Micheal J.F., Shuo L.. (1997) .Promoter analysis in living zebrafish embryos identifies a cis-acting motifrequired for neuronal expression of GATA-2.Proc.Natl.Acad.Sci..94,6267-6272.), Africa xenopus EF-1 α gene (XEX) regulating and controlling sequence (Johnson A.D., Krieg P.A.. (1995) .A Xenopus laevis gene encoding EF-1 alpha S, the somatic form ofelongation factor l alpha:sequence, structure, and identification ofregulatory elements required for embryonic transcription.Dev Genet.17 (3), 280-90.) and GFP expression cassette (Amsterdam A., Lin S., Hopkins N.. (1995) .The Aequoreavictoria green fluorescent protein can be used as a reporter in live zebrafishembryos.Dev Biol.171 (1) 123-9.) inserts carrier pGEM-7Zf (-) (X65311.2 GI:6687355in the Genbank) and obtains.The apoaequorin recombinant expression vector can import zebra fish zygote by several different methods, as microinjection, protoplastis fusion method, high voltage electric perforation method etc., is preferably microinjection.
The present invention is directed to along with apoaequorin in the cellular segregation daughter cell and coelenterazine meeting problem less and less, cultivate the apoaequorin transgenic zebrafish by the method for gene recombination, can stably express apoaequorin.Comprise the GATA2 promotor in the apoaequorin recombinant expression vector of the present invention, the transgenic zebrafish of preparing is expressed apoaequorin at muscle and neural system respectively.For the ease of identifying the apoaequorin transgenic zebrafish, all comprise GFP expression cassette on each expression vector by the guiding of Africa xenopus EF-1 α gene (XEX) regulating and controlling sequence, in the transgenic zebrafish of success, can be observed the green fluorescence that general is expressed.
Apoaequorin transgenic zebrafish of the present invention will be studied at biological development, zebra fish live body calcium picture plays important effect in studying, and have important significance for theories and practical significance.Apoaequorin transgenic zebrafish of the present invention can be at specific histoorgan and the specific synthetic in a large number apoaequorin of developmental stage, can be used on active somatic cell, organ even individual integral level research, to illustrate the effect of calcium signal in processes such as growth, growth to calcium signal (calcium picture).Apoaequorin transgenic zebrafish of the present invention and existing mutant zebra fish can obtain the relation of relevant specific gene sudden change and calcium abnormal signal by genetic breeding, on the mechanism of genetic diseases is set forth and treated important meaning are arranged.
Description of drawings
Fig. 1 is the physical map that can express the recombinant expression vector of apoaequorin
Fig. 2 is the in situ hybridization result who contains the apoaequorin transgenic zebrafish of GATA2 promotor
Fig. 3 is the expression photo that contains the apoaequorin transgenic zebrafish GFP of GATA2 promotor
Embodiment
The apoaequorin transgenic zebrafish is expressed in embodiment 1, cultivation
Cultivate the method for expressing the apoaequorin transgenic zebrafish, may further comprise the steps:
(1) makes up the recombinant vectors that to express apoaequorin
PolyA (pA) and apoaequorin coding region fragment that the clone is obtained are inserted among the carrier pGEM-7Zf (-), obtain plasmid pGEM-Aeq-pA.With XhoI and BamHI digested plasmid pGATA2-GM2, obtain the GATA2 promoter fragment of about 2.1kb; With XhoI and SacI digested plasmid pBKS-GM2, obtain the XEX-GM2-pA fragment of about 1.6kb; With BamHI and SacI digested plasmid pGEM-Aeq-pA, obtain the fragment of about 3.9kb; Connect this three fragments, obtain recombinant vectors pGATA2-Aeq-GM2.
The physical map of constructed recombinant expression vector of expressing apoaequorin as shown in Figure 1, the GATA2 regulating and controlling sequence that comprises zebra fish, also comprise a GFP expression cassette, be used to screen transgenic zebrafish by the guiding of Africa xenopus EF-1 α gene (XEX) regulating and controlling sequence.
(2) recombinant expression vector pGATA2-Aeq-GM2 transforms zebra fish zygote
The linearizing recombinant plasmid of microinjection is fed to sexual maturity in zebra fish zygote, obtains F0 generation.
(3) acquisition of transgenic zebrafish
With the zebra fish mating of F0 generation with wild-type, whether have GFP to express to identify GFP male F1 generation by observing its filial generation embryo F1 generation, the result obtains the positive F1 generation that general is expressed GFP as shown in Figure 3.(with apoaequorin is template to use the apoaequorin antisense RNA probes of digoxigenin labeled again, the RNA sequence that obtains by 3 '-5 ' direction in-vitro transcription) does whole embryo in situ hybridization according to a conventional method, check the apoaequorin expression of F1 for the embryo, the result as shown in Figure 2, finally identify the transgenic zebrafish of expressing apoaequorin, among the figure, the black-dyeing position is neural neurone.Obtain the homozygote of transgenic zebrafish again by traditional breeding method.
Claims (6)
1, a kind of method of cultivating the apoaequorin transgenic zebrafish may further comprise the steps:
(1) make up the apoaequorin recombinant expression vector, described apoaequorin recombinant expression vector comprises GATA2 regulating and controlling sequence of apoaequorin encoding gene, zebra fish and the GFP expression cassette that is guided by Africa xenopus EF-1 α gene regulating sequence;
(2) transform zebra fish zygote with the recombinant expression vector in the step (1), obtain F0 generation;
(3), obtain to express the transgenic zebrafish of apoaequorin with the zebra fish mating of F0 generation with wild-type.
2, method according to claim 1, it is characterized in that: in the described step (1), GATA2 regulating and controlling sequence and the Africa xenopus EF-1 α gene regulating sequence of apoaequorin encoding gene, zebra fish are inserted among the carrier pGEM-7Zf (-), obtain described apoaequorin recombinant expression vector.。
3, method according to claim 1 and 2 is characterized in that: described apoaequorin recombinant expression vector imports zebra fish zygote by microinjection, protoplastis fusion method, high voltage electric perforation method, obtains F0 generation.
4, method according to claim 3 is characterized in that: described apoaequorin recombinant expression vector imports zebra fish zygote by microinjection, obtains F0 generation.
5, a kind of plasmid of cultivating the apoaequorin transgenic zebrafish, it comprises GATA2 regulating and controlling sequence of apoaequorin encoding gene, zebra fish and the GFP expression cassette that is guided by Africa xenopus EF-1 α gene regulating sequence.
6, plasmid according to claim 5 is characterized in that: described plasmid is pGATA2-Aeq-GM2.
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| Application Number | Priority Date | Filing Date | Title |
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| CNB2003101004529A CN1304571C (en) | 2003-10-16 | 2003-10-16 | Method for breeding transgenic zebra fish and its special plasmid |
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| CNB2003101004529A CN1304571C (en) | 2003-10-16 | 2003-10-16 | Method for breeding transgenic zebra fish and its special plasmid |
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| CN1607252A true CN1607252A (en) | 2005-04-20 |
| CN1304571C CN1304571C (en) | 2007-03-14 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363792A (en) * | 2011-11-11 | 2012-02-29 | 中国水产科学研究院淡水渔业研究中心 | Lentivirus method for preparing IGF2b transgenic fish |
| CN105925607A (en) * | 2016-06-02 | 2016-09-07 | 贵州医科大学 | Establishment method for transgenic zebrafish model with glucose-6-phosphate dehydrogenase deficiency |
| CN106035233A (en) * | 2016-06-22 | 2016-10-26 | 贵州医科大学 | Transgenic zebra fish model with g6pd1303-1497 locus deletion and construction method |
| CN106070063A (en) * | 2016-07-07 | 2016-11-09 | 贵州医科大学 | Transgenic zebrafish system with abcb4 and method for building up thereof |
| CN112430624A (en) * | 2020-11-25 | 2021-03-02 | 汕头大学 | Zebra fish muscle specific inducible expression vector and application |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE60135652D1 (en) * | 2000-06-01 | 2008-10-16 | Pasteur Institut | Chimeric GPF aequorin as a bioluminescent Ca ++ marker at single cell level |
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2003
- 2003-10-16 CN CNB2003101004529A patent/CN1304571C/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102363792A (en) * | 2011-11-11 | 2012-02-29 | 中国水产科学研究院淡水渔业研究中心 | Lentivirus method for preparing IGF2b transgenic fish |
| CN105925607A (en) * | 2016-06-02 | 2016-09-07 | 贵州医科大学 | Establishment method for transgenic zebrafish model with glucose-6-phosphate dehydrogenase deficiency |
| CN106035233A (en) * | 2016-06-22 | 2016-10-26 | 贵州医科大学 | Transgenic zebra fish model with g6pd1303-1497 locus deletion and construction method |
| CN106035233B (en) * | 2016-06-22 | 2019-10-29 | 贵州医科大学 | Transgenic zebrafish model and construction method with g6pd1303-1497 site deletion |
| CN106070063A (en) * | 2016-07-07 | 2016-11-09 | 贵州医科大学 | Transgenic zebrafish system with abcb4 and method for building up thereof |
| CN106070063B (en) * | 2016-07-07 | 2019-03-05 | 贵州医科大学 | Transgenic zebrafish system and its method for building up with abcb4 |
| CN112430624A (en) * | 2020-11-25 | 2021-03-02 | 汕头大学 | Zebra fish muscle specific inducible expression vector and application |
| CN112430624B (en) * | 2020-11-25 | 2023-08-18 | 汕头大学 | Zebra fish muscle specific induction type expression vector and application thereof |
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| CN1304571C (en) | 2007-03-14 |
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