Background technology
The fish Mitochondrial Genome Overview by 13 proteins encoded plasmagenes, 22 tRNA genes, 2 rRNA genes (12S rRNA and 16S rRNA) totally 37 encoding genes and one section main non-coding region (control region) form, have matrilinear inheritance simple in structure, that copy number is many, strict, recombinate hardly, coding efficiency is high, rate of evolution is fast and the different zones rate of evolution such as there are differences at the characteristics.Because these characteristics that the fish Mitochondrial Genome Overview has make it become the important molecular markers of the research fields such as fish molecular population genetics, phylogenetics and conservation biology.
Gobioidei is under the jurisdiction of Perciformes, goby suborder, is most species in the world, and one of the widest Fish assemblage distributes.Global goby kind estimates at kind more than 2000, and they form a huge biological group, occupy an important position in the water surrounding especially marine eco-environment.Goby mostly is carnivorous small fish, is found everywhere through the world, and especially take the torrid zone as many, is mainly sea water fish, the life of dwelling at the end of most of battalion, and principal character is that its abdomeinal fin heals into a sucker shape.In recent years, owing to reasons such as overfishing, climatope variations, many traditional tuna fisheries resources can not form fishing news, some in addition exhausted, but the reasons such as Gobioidei is adaptable because of it, life cycle is short, reproductivity is strong, stock number but increase year by year.Because the Gobioidei economic worth is not high, relatively less relevant for the research of Gobioidei both at home and abroad, of a great variety because of it, the formalness feature is very similar, causes being difficult for differentiating and assert.At present, the classification of Gobioidei is also very not clear, and the classification position of many types is also relatively more chaotic.
Genes involved on the full genome of plastosome and the Mitochondrial Genome Overview has been widely used in the research fields such as population genetics, phylogenetics and conservation biology of fish as molecule marker.ND1 is as 7 one of genes of NADH reductase enzyme complex subunits of encoding in the vertebrates encoding mitochondrial protein gene, and it is comparatively conservative on evolving, and can be applicable to phyletic evolution and the sort research of animal.Yet the universal primer of reporting the mitochondrial ND1 gene complete sequence that increases had not been arranged, the Gobioidei especially extensive for species distribution, that kind is numerous.Therefore design the universal primer of specific amplification Gobioidei mitochondrial ND1 gene complete sequence, thereby lay the foundation for efficiently obtaining goby mitochondrial ND1 gene complete sequence and mitochondrial genome complete sequence.
Summary of the invention
Vacancy for above-mentioned prior art existence, the present invention aims to provide the nucleotide primer of the multiple Gobioidei mitochondrial ND1 gene of a pair of efficiently specific amplified complete sequence, thereby provides a powerful for effectively obtaining fast Gobioidei mitochondrial ND1 gene complete sequence to carry out phyletic evolution and sort research.The present invention also aims to provide the method for design of described Gobioidei mitochondrial ND1 gene complete sequence amplimer, and the method for utilizing described Gobioidei mitochondrial ND1 gene complete sequence amplimer that Gobioidei mitochondrial ND1 gene complete sequence is increased.
For realizing goal of the invention of the present invention, the contriver provides following technical scheme:
Gobioidei mitochondrial ND1 gene complete sequence amplimer is comprised of two single stranded oligonucleotide chains, and wherein the light chain primer is the nucleotide sequence shown in the SEQ ID No.1; The heavy chain primer is the nucleotide sequence shown in the SEQ ID No.2.
Shown in the light chain primer Gobies-ND1-F(SEQ ID No.1 of the present invention) 19 base: CGGAGAAATCCAGGTCAGT are arranged, be positioned on the 16S rRNA gene; Heavy chain primer Gobies-ND1-R (shown in the SEQ ID No.2) has 19 base: CCAACATGTTTGGGGTATG, is positioned on the tRNA-Met gene.
The 15 seed shrimps tiger fish of Gobioidei mitochondrial ND1 gene complete sequence amplimer of the present invention to gathering at Area of The East China Sea, all can obtain fragment length and be the specific amplification products about 1300 bp, through order-checking and with GenBank in the comparison of homologous sequence, confirm as and comprise the mitochondrial ND1 gene complete sequence, tRNA-Val gene complete sequence, tRNA-Ile gene complete sequence, tRNA-Gln gene complete sequence and length are the amplified production of 16S rRNA gene 3 ' the end parts sequence about 115 bp, embody the wider amplification scope of the present invention and stronger amplification ability, thereby provide a powerful for effectively obtaining fast Gobioidei line grain ND1 gene complete sequence to carry out phyletic evolution and sort research.
As preferably, according to Gobioidei mitochondrial ND1 gene complete sequence amplimer of the present invention, wherein said Gobioidei includes but not limited to following: Bostrichthys sinensis, blue or green mudskipper, speckle tongue goby, moustache thin white silk used in ancient China goby, hole goby, the thin sour jujube goby of green statin, red wolf's fang goby, the thin sour jujube goby of Pu Shi, spot acanthogobius, mudskipper, Zhoushan reins goby, tack pole goby, lance acanthogobius, biobelt thin white silk used in ancient China goby, the not easily seen goby of canine tooth.
The present invention also provides the method for design of above-mentioned Gobioidei mitochondrial ND1 gene complete sequence amplimer, namely login 16S rRNA gene and the tRNA-Met gene order of the Mitochondrial Genome Overview of the Gobioidei of other species that GenBank database (http://www.ncbi.nlm.nih.gov/) search in the NCBI website announced and nearly edge fish species, through homology relatively, find conserved sequence, and utilize Premier Primer5.0 software design to go out Gobioidei mitochondrial ND1 gene complete sequence amplimer.Used Premier Primer5.0 software is downloaded at biosoftware net http://www.bio-soft.net/.
The present invention also provides a kind of method that Gobioidei mitochondrial ND1 gene complete sequence is increased, and comprises adopting above-mentioned Gobioidei mitochondrial ND1 gene complete sequence amplimer that the dna profiling solution of testing sample is carried out pcr amplification.
As preferably, according to a kind of method that Gobioidei mitochondrial ND1 gene complete sequence is increased of the present invention, wherein the condition of pcr amplification is: 95 ℃ of denaturation 5min, then 95 ℃ of sex change 30s, 56 ℃ of annealing 30s, 72 ℃ are extended 1min30s, totally 35 circulations, and last 72 ℃ are extended 5min.
As preferably, according to a kind of method that the Gobioidei mitochondrial ND1 gene is increased of the present invention, wherein the reaction composition of pcr amplification is: the PCR reaction system is 25 μ L, includes dNTP(2.5mM) light chain primer and heavy chain primer each 1 μ L, Taq archaeal dna polymerase (5U/ul) 0.2 μ L of 2 μ L, 10 * Taq archaeal dna polymerase Buffer, 2.5 μ L, 10 μ M, contain dna profiling solution 1 μ L and the ddH of 100ng
2O 17.3 μ L.
As preferably, according to a kind of method that the Gobioidei mitochondrial ND1 gene is increased of the present invention, wherein said Gobioidei includes but not limited to following: Bostrichthys sinensis, blue or green mudskipper, speckle tongue goby, moustache thin white silk used in ancient China goby, hole goby, the thin sour jujube goby of green statin, red wolf's fang goby, the thin sour jujube goby of Pu Shi, spot acanthogobius, mudskipper, Zhoushan reins goby, tack pole goby, lance acanthogobius, biobelt thin white silk used in ancient China goby, the not easily seen goby of canine tooth.
Compared with prior art, the present invention has following advantage:
Gobioidei mitochondrial ND1 gene complete sequence amplimer provided by the invention, multiple Gobioidei mitochondrial ND1 gene complete sequence specifically can efficiently increase, rather than the Partial Fragment sequence of the ND1 that only increases, can be applied to the different taxonomic category phyletic evolutions of shrimp tiger and sort research.Universal primer of the present invention and method of design thereof also can be used as the specific examples of universal primer PCR amplification principle and key parameter research simultaneously, promote the progressive development of the field that the invention relates to, thereby possess important invention value and theory significance.
Embodiment
Below in conjunction with embodiment and Figure of description, be described more specifically content of the present invention.Should be appreciated that enforcement of the present invention is not limited to the following examples, any pro forma accommodation and/or change that the present invention is made all will fall into protection domain of the present invention.
In the present invention, if not refer in particular to, all part, per-cents are weight unit, and all equipment and raw material etc. all can be buied from market or the industry is commonly used.If without specializing, the method that embodiment adopts is this area current techique.
Main raw, reagent and plant and instrument:
Software and sequence resource: Premier Primer5.0 primer-design software (downloading from biological software net http://www.bio-soft.net/), Gobioidei Mitochondrial Genome Overview sequence resource (downloading Genbank database http://www.ncbi.nlm.nih.gov/ in NCBI), sequence analysis software MEGA5.0(downloads from biological software net http://www.bio-soft.net/).
Pcr amplification detects the related reagent instrument: marine animal genome DNA extracting reagent kit (TIANGEN, Beijing), and sepharose DNA reclaims test kit (TIANGEN, Beijing), conventional desk centrifuge (Thermo), the Bio-Rad C1000TM Thermal Cycler instrument (Bio-Rad, the U.S.) that increases, micropipet (Eenppdorf, Germany), 96 hole PCR plates (Axygen), dNTP(TIANGEN, Beijing), 10 * Taq archaeal dna polymerase Buffer(TIANGEN, Beijing), Taq archaeal dna polymerase (TIANGEN, Beijing), the sterilization distilled water, DL2000 DNA marker(TIANGEN, Beijing), agarose (Biowest, Hong Kong), electrophoresis apparatus (DYY-6C type, Beijing 6 1), gel imaging instrument (Bio-Rad GD2000, the U.S.).
Cloning and sequencing related reagent instrument: high-pressure steam sterilizing pot (SANYO, Japan), the antibiotic sterilization LB of ammonification benzyl (Amp) substratum, LB solid culture plate (worker is given birth in Shanghai), Bechtop (SW-CJ-1G type, the star of famous brand, China), thermostat water bath (upper Nereid is grand), DH5 α competent cell (TIANGEN), Amp microbiotic (worker is given birth in Shanghai), 5-bromo-4-chloro-3-indoles-β-D-galactoside (worker is given birth in Shanghai), isopropylthio-β-D-galactoside (worker is given birth in Shanghai), pGEM-T carrier (Promega, the U.S.), constant incubator (PH070A type, Shanghai Yiheng Scientific Instruments Co., Ltd), constant temperature oscillation shaking table (training English, Taicang experimental installation factory) automated DNA sequenator (ABI 3730 types, the U.S.).
The experimental technique of unreceipted actual conditions among the embodiment, according to normal condition, molecular cloning laboratory manual (New York:Cold Spring Harbor Laboratory Press such as authors such as Sambrook, 1989) condition described in, or according to the condition of manufacturer specification sheets suggestion.
Embodiment 1
1, the design of Gobioidei mitochondrial ND1 gene complete sequence amplimer and synthetic:
16S rRNA gene and the tRNA-Met gene order of the Gobioidei of other species that the GenBank database search in the login NCBI website has been measured and the Mitochondrial Genome Overview of nearly edge fish species, sequence is loaded among the analysis software MEGA5.0, utilize the ClustalW algorithm to carry out multisequencing contraposition compare of analysis, find conserved sequence, the conserved sequence that finds is loaded into Premier Primer5.0 software (namely under the manual option, is selecting Low under the manual designs pattern, design parameter is default setting) design Gobioidei mitochondrial ND1 gene complete sequence amplimer: wherein shown in the light chain primer Gobies-ND1-F(SEQ ID No.1) and 19 base: CGGAGAAATCCAGGTCAGT are arranged, be positioned on the 16S rRNA gene; Heavy chain primer Gobies-ND1-R (shown in the SEQ ID No.2) has 19 base: CCAACATGTTTGGGGTATG, is positioned on the tRNA-Met gene.
Synthesize the primer that meets nucleotide sequence shown in SEQ ID No.1 and the SEQ ID No.1 by Nanjing Genscript Biotechnology Co., Ltd. according to contriver's requirement.
2, the Gobioidei mitochondrial ND1 gene is increased
15 samples to be tested among the present invention all are collected in the Area of The East China Sea of China.Wherein the Gobioidei of amplification is following kind: Bostrichthys sinensis, blue or green mudskipper, speckle tongue goby, moustache thin white silk used in ancient China goby, hole goby, the thin sour jujube goby of green statin, red wolf's fang goby, the thin sour jujube goby of Pu Shi, spot acanthogobius, mudskipper, Zhoushan reins goby, tack pole goby, lance acanthogobius, biobelt thin white silk used in ancient China goby, the not easily seen goby of canine tooth.
Utilize the marine animal genome DNA extracting reagent kit to extract the genomic dna of sample to be tested, method is carried out according to the test kit specification sheets, the genomic dna of agarose electrophoresis Detection and Extraction.
PCR reaction system and reaction conditions for the multiple Gobioidei mitochondrial ND1 gene complete sequence that increases are as follows: the PCR reaction system is 25 μ L, include dNTP(TIANGEN), 10 * TaqDNA polysaccharase Buffer(TIANGEN), the heavy chain primer Gobies-ND1-R of the light chain primer Gobies-ND1-F of 10 μ M and 10 μ M, Taq DNA polysaccharase (TIANGEN), the genomic dna template solution that contains the said extracted of 100ng, ddH
2O, wherein:
10 * TaqDNA polysaccharase Buffer, 2.5 μ L
dNTP 2μL
Gobies- ND1-F 1μL
Gobies- ND1-R 1μL
Template DNA 1μL
ddH
2O 17.3μL
Taq DNA polysaccharase 0.2 μ L.
Amplified reaction is at Bio-Rad C1000
TMCarry out on the Thermal Cycler instrument, amplification condition is: 95 ℃ of denaturation 5min, and 95 ℃ of sex change 30s then, 56 ℃ of annealing 30s, 72 ℃ are extended 1min30s, totally 35 circulations, last 72 ℃ are extended 5min.Amplified production detects its size and purity with 1% agarose gel electrophoresis.The electrophoretogram of different Gobioidei mitochondrial ND1 gene complete sequence amplified productions is seen Fig. 1.
Use the most Gobioidei line of the primer amplification grain ND1 gene complete sequence of design, all obtained single purpose fragment, the product size is about 1300 bp, and pcr amplification product directly checked order, after the steps include: that pcr amplification product tentatively quantitatively, concentration reaches the sample of about 100ng/ μ l, sends Nanjing Genscript Biotechnology Co., Ltd., entrust it to carry out two-way order-checking, sequencing primer is Gobies-ND1-F(10 μ M) and Gobies-ND1-R(10 μ M).Comprise the amplified production that mitochondrial ND1 gene complete sequence, tRNA-Val gene complete sequence, tRNA-Ile gene complete sequence, tRNA-Gln gene complete sequence and length are 16S rRNA gene 3 ' the end parts sequence about 115 bp through checking order and compare with the homologous sequence among the GenBank, confirming as.
In addition, use the thin sour jujube goby of primer amplification Pu Shi and the blue or green mudskipper mitochondrial ND1 gene of design, all obtained single purpose fragment, the product size is about 1300 bp, and uses sepharose DNA to reclaim test kit (TIANGEN, Shanghai) pcr amplification product is carried out glue recovery purifying, purified product and pGEM-T carrier (Promega company, the U.S.) connect, transform, identify positive colony and order-checking.The steps include: that the pcr amplification product that reclaims purifying through glue carries out ligation with the pGEM-T carrier under the effect of T4 dna ligase.The ligation system is carrier 1 μ l, and T4 dna ligase 1 μ l connects Buffer 5ul, PCR purified product 3 μ l.Ligation is in operation on ice, and reaction solution places 4 ℃ of refrigerators to connect spend the night (at least 12 hours).Get DH5 α competent cell (TIANGEN, Beijing), the heat shock method transforms, carry out the white screening of indigo plant with containing ammonia benzyl microbiotic (Amp) LB dull and stereotyped (evenly being coated with in advance the isopropylthio-β-D-galactoside (IPTG) of 5-bromo-4-chloro-3-indoles-β of 40ul 20mg/ml-D-galactoside (X-Gal) and 30ul 0.2mol/L before the use), and sub by the positive colony of bacterium liquid pcr amplification affirmation picking.The bacterium liquid of positive colony after enlarged culturing is sent Nanjing Genscript Biotechnology Co., Ltd. and is carried out two-way direct Sequencing.Sequencing primer is SP6/T7.Sequenator is ABI 3730 full-automatic DNA sequencers.Comprise the amplified production that mitochondrial ND1 gene complete sequence, tRNA-Val gene complete sequence, tRNA-Ile gene complete sequence, tRNA-Gln gene complete sequence and length are 16S rRNA gene 3 ' the end parts sequence about 115 bp through checking order and compare with the homologous sequence among the GenBank, confirming as.
Practicality
Gobioidei mitochondrial ND1 gene complete sequence amplimer of the present invention carries out pcr amplification to the dna profiling solution at 15 kinds of ocean Gobioideis of Area of The East China Sea collection, all can obtain the specific amplification products of fragment about 1300 bp, through order-checking and with GenBank in the comparison of homologous sequence, confirm as and comprise the mitochondrial ND1 gene complete sequence, tRNA-Val gene complete sequence, tRNA-Ile gene complete sequence, tRNA-Gln gene complete sequence and length are the amplified production of 16S rRNA gene 3 ' the end parts sequence about 115 bp, embody the wider amplification scope of the present invention and stronger amplification ability, because selected 15 seed shrimps of the present invention tiger fish belong to respectively below the goby suborder the not species of equal genus, therefore, Gobioidei mitochondrial ND1 gene complete sequence amplimer of the present invention all can be used at the different taxonomic category phyletic evolutions of Gobioidei and sort research field.
Although the contriver has done comparatively detailed elaboration to technical scheme of the present invention and has enumerated, be to be understood that, for the those skilled in the art in this area, above-described embodiment is modified and/or flexible or to adopt the replacement scheme that is equal to be obvious, the essence that all can not break away from spirit of the present invention, the term that occurs among the present invention is used for elaboration and the understanding to technical solution of the present invention, can not be construed as limiting the invention.
SEQUENCE LISTING
<110〉Oceanography Institute Of Zhejiang
<120〉Gobioidei mitochondrial ND1 gene complete sequence amplimer and design thereof and amplification method
<130> Z122340
<160> 2
<170> PatentIn version 3.3
<210> 1
<211> 19
<212> DNA
<213〉artificial sequence
<400> 1
cggagaaatc caggtcagt 19
<210> 2
<211> 19
<212> DNA
<213〉artificial sequence
<400> 2
ccaacatgtt tggggtatg 19