CN105462995A - Barnea dilatata mitochondrial COI gene amplification primer - Google Patents
Barnea dilatata mitochondrial COI gene amplification primer Download PDFInfo
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- CN105462995A CN105462995A CN201610021309.8A CN201610021309A CN105462995A CN 105462995 A CN105462995 A CN 105462995A CN 201610021309 A CN201610021309 A CN 201610021309A CN 105462995 A CN105462995 A CN 105462995A
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Abstract
The invention provides a barnea dilatata mitochondrial COI gene. The nucleotide sequence of the gene is SEQ ID NO: 1. The base sequence is used for designing an amplification primer for detecting barnea dilatata. The primer is designed for barnea dilatata mitochondrial COI gene segments. Compared with a COI gene primer universal for mollusks, the amplification primer has the advantage of absolute specificity. The amplification efficiency of the primer reaches as high as 90% or above, amplification efficiency is high, and time and cost for amplification are greatly reduced.
Description
Technical field
The invention belongs to molecular marker screening technical field, be specifically related to a kind of Barnea dilatata mitochondrion COI gene amplification primers.
Background technology
Barnea dilatata (Barneadilatata) is under the jurisdiction of Mollusca (Mollusca), Bivalvia (Bivalvia), MYOIDA (Myoida), Pholadidae (Pholadidae), full piddock belongs to (GenreBarneaLeach), is distributed in Philippines, Japan and China coast; To hide at the bottom of many ooze near river mouth life, can dive in mud very dark.Barnea dilatata is as the shellfish of distribution coastal area of china, and rich in proteins and VITAMIN, meat flavour is delicious.All propagate artificially at China Fujian, zhejiang and other places.Research in Barnea dilatata artificial propagation, reproductive growth, Physiology and biochemistry a lot, but is carried out less based on the research of the genetic diversity of molecule marker, and this present situation is extremely unfavorable to the development and protection of Barnea dilatata germ plasm resource.Mitochondrial DNA (MitochondrialDNA and mtDNA) has monolepsis, without characteristics such as restructuring, Neutral Evolutions, plays an important role in molecule genetics research.COI gene in mtDNA is the relatively fast region of evolutionary rate, differentiates, is widely used in population genetic diversity clam molecular evolution in invertebrates phylogenetic systematics, kind.The amplification of universal primer COIL1490 and COIL2198 in Barnea dilatata designed due to Folmer (1994) is undesirable, and agarose gel electrophoresis detected result display major part is individual without amplified band.It is less that current Pholadidae COI Gene increases out, only has 12 sequences at US National Biotechnology Information center, and Barnea dilatata only 2 sequences.Exploitation practicality good COI gene amplification primer can effectively address these problems, and also can be the diversity evaluation of Barnea dilatata, conservation of resources and the aspect such as utilization, genetic breeding and lays the foundation.
Summary of the invention
The invention provides the good primer of a kind of Barnea dilatata mitochondrial COI gene suitability and discrimination method thereof, thus make up the deficiencies in the prior art.
First the present invention provides a kind of Barnea dilatata COI gene, and its nucleotides sequence is classified as SEQIDNO:1;
Above-mentioned gene order detects the amplimer of Barnea dilatata for designing;
Another aspect of the present invention provides a kind of Barnea dilatata mitochondrion COI gene amplification primers, and the sequence information of primer is as follows:
Upstream primer COIBF:5`-CGACGAATCATAAGGACAT-3` (SEQIDNO:2),
Downstream primer COIBR:5`-GCCCGAGGGATCAAAG-3` (SEQIDNO:5);
Above-mentioned upstream primer, its sequence can also be SEQIDNO:3 or SEQIDNO:4;
Above-mentioned downstream primer, its sequence can also be SEQIDNO:6 or SEQIDNO:7;
Above-mentioned primer is used for the multifarious detection of population genetic of Barnea dilatata.
Compared with prior art, tool of the present invention has the following advantages:
(1) high specificity, this primer is for the design of Barnea dilatata COI Gene, and the COI gene primer that relative mollusk is general, has absolute specificity advantage.
(2) efficiency is high, and the amplification efficiency of this primer is up to more than 90%, and amplification efficiency is high, greatly reduces time and the expense of amplification.
(3) easy and simple to handle, and cost is not high.Relative cloning and sequencing, utilizes Auele Specific Primer to carry out the method increased, simple to operate, saves time and expense.Be applicable to the experimental study of needs extensive amplification COI gene.
Embodiment
Below in conjunction with embodiment, the present invention is described in detail.
Embodiment 1: the amplification of Barnea dilatata COI gene fragment and other several shellfish genome C OI gene fragments and sequential analysis
Amplification to Barnea dilatata COI gene:
(1) by CTAB method, DNA extraction is carried out to the Barnea dilatata (number is 16, totally 32) picking up from Ningbo of Zhejiang and Qinhuangdao, add distilled water dilution for the working fluid of 100ng/ μ l for subsequent use.
(2) utilize above-mentioned primer pair DNA working fluid to carry out pcr amplification, the obtain solution of this reaction system comprises: 1 μ l template DNA, 0.05 μ lTaq polysaccharase, 1 μ l10 × PCRb μ ffer, 0.8 μ ldNTPs, each 1 μ l of upstream and downstream primer, 5.15 μ l distilled waters.Pcr amplification condition is: 94 DEG C of denaturation 3min, 94 DEG C of sex change 45s, 46-56 DEG C of annealing temperature 45s, and 72 DEG C extend 45s, totally 35 circulations, is finally 72 DEG C and extends 10min.
(3) detect amplified production with 1.5% biological agarose gel electrophoresis, amplified production transfers to Hua Da gene to carry out two-way order-checking.After the sequence BioEdit software splicing recorded, carry out multiple compare of analysis with the COI sequence that NCBI downloads, determine that gained sequence is Barnea dilatata COI sequence.
Applicant analyzes Barnea dilatata COI Gene Partial sequence (SEQIDNO:1) that amplification obtains; Blast comparison is carried out in ncbi database, the COI gene fragment of DNASTAR software to Barnea dilatata and other several shellfishes is utilized to be analyzed, the COI gene nucleotide consistence of discovery Barnea dilatata and the full piddock of crisp shell is 84%, be 87% with the consistence of the COI gene nucleotide of short tube callistin shellfish, be 79% with the COI gene nucleotide consistence of decorative pattern dish clam, result shows that the COI gene nucleotide series of Barnea dilatata and the COI gene nucleotide series of other several shellfishes exist obvious difference.
Embodiment 2: the design of primer
(1) by CTAB method, DNA extraction is carried out to the Barnea dilatata (number is 16, totally 32) picking up from Ningbo of Zhejiang and Qinhuangdao, add distilled water dilution for the working fluid of 100ng/ μ l for subsequent use.
(2) COI universal primer (LCO1490F and HCO2198R, Folmer1994) is utilized to amplify the partial sequence of Barnea dilatata.
(3) from the part Barnea dilatata sequence of above-mentioned gained, by software BioEdit (http://www.Mbio.Ncsu.edu/BioEdit/bioedit.html), multi-contrast's analysis is carried out to above-mentioned sequence, the conservative region before and after determining.
(4) through comparison, each 150 base pairs in front and back end, at conservative region, devise 3 pairs of primers with primer-design software PrimerPremier5, all do not occur primer dimer, hairpin structure and mismatching phenomenon during the primer of design as far as possible.The primer of design transfers to Shanghai Sheng Gong Bioisystech Co., Ltd to synthesize, and the sequence information of primer is as follows:
Upstream primer: COIBF:5`-CGACGAATCATAAGGACAT-3` (SEQIDNO:2);
COIBF-1:5`-CGACGAATCATAAGGAC-3`(SEQIDNO:3);
COIBF-2:5`-CGACGAATCATAAGGACAT-3`(SEQIDNO:4)。
Downstream primer: COIBR:5`-GCCCGAGGGATCAAAG-3` (SEQIDNO:5);
COIBR-1:5`-GCCGAAGAATCAAAA-3`(SEQIDNO:6);
COIBR-2:5`-GGATGGCCGAAGAATC-3`(SEQIDNO:7)。
(5) in 10 μ lPCR reaction systems, to increase respectively the individual COI gene fragment of Barnea dilatata 32 with 3 pairs of primers of synthesis, the obtain solution of this reaction system comprises: 1 μ l template DNA, 0.05 μ lTaq polysaccharase, 1 μ l10 × PCRbuffer, 0.8 μ ldNTPs, each 1 μ l of upstream and downstream primer, 5.15 μ l distilled waters.Pcr amplification condition is: 94 DEG C of denaturation 3min, 94 DEG C of sex change 45s, 46-56 DEG C of annealing temperature 45s, and 72 DEG C extend 45s, totally 38 circulations, is finally 72 DEG C and extends 10min.
(6) by product that each primer amplification goes out, detect with 1.5% biological agarose gel electrophoresis, by the result observation analysis of gel electrophoresis, three pairs of primers can amplify single band, but the band that COIBF and COIBR amplifies is the most clear, the more other two pairs of primers of amplification efficiency are high, and the individual amount of amplification is far above other two pairs of primers, amplify 29 individualities, amplification efficiency is up to 90%; Show that the amplification efficiency of COIBF and COIBR amplimer is higher.
(7) amplified production transfers to Hua Da gene to carry out two-way order-checking.After the sequence BioEdit software splicing recorded, carry out multiple compare of analysis with the COI sequence that NCBI downloads, determine that gained sequence is Barnea dilatata COI sequence, thus show that COIBF and COIBR amplimer has the specificity of amplification.
Claims (6)
1. a Barnea dilatata COI gene, is characterized in that, the nucleotides sequence of described Barnea dilatata COI gene is classified as SEQIDNO:1.
2. Barnea dilatata COI gene according to claim 1 detects the application in the amplimer of Barnea dilatata in design.
3. detect a primer for Barnea dilatata, it is characterized in that, the sequence information of described primer is as follows:
The sequence of upstream primer be SEQIDNO:2,
The sequence of downstream primer is SEQIDNO:5.
4. primer as claimed in claim 3, it is characterized in that, the sequence of described upstream primer is SEQIDNO:3 or SEQIDNO:4.
5. primer as claimed in claim 3, it is characterized in that, the sequence of described downstream primer is SEQIDNO:6 or SEQIDNO:7.
6. the application of the primer described in any one of claim 3-5 in the population genetic diversity detecting Barnea dilatata.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110438062A (en) * | 2019-08-01 | 2019-11-12 | 北京林业大学 | A kind of extraction purification and identification method of moso bamboo shoot high activity mitochondria |
CN114698580A (en) * | 2022-04-12 | 2022-07-05 | 世倍(厦门)海洋科技有限公司 | Artificial breeding method for large-size seeds of Meretrix Linnaeus |
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Patent Citations (5)
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CN101942432A (en) * | 2010-08-12 | 2011-01-12 | 中国海洋大学 | Method for screening tegillarca granosa mitochondria COI gene amplification primers |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110438062A (en) * | 2019-08-01 | 2019-11-12 | 北京林业大学 | A kind of extraction purification and identification method of moso bamboo shoot high activity mitochondria |
CN114698580A (en) * | 2022-04-12 | 2022-07-05 | 世倍(厦门)海洋科技有限公司 | Artificial breeding method for large-size seeds of Meretrix Linnaeus |
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