CN104673913B - The molecular specificity labeled primers and detection method of a Flowering Cherry Cultivars " Misaki Ji " - Google Patents
The molecular specificity labeled primers and detection method of a Flowering Cherry Cultivars " Misaki Ji " Download PDFInfo
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Abstract
The present invention relates to a pair of high Flowering Cherry Cultivars " Misaki Ji of specificity " molecular specificity labeled primers, and one kind can be to a Flowering Cherry Cultivars " Misaki Ji " method that carries out Rapid identification.The primer sequence is as follows：Sense primer：5′‑TGAGTCCAAACCGGACCGAGAAG‑3′；Anti-sense primer：5′‑GACTGCGTACGAATTGACGGGAAT‑3′.Molecular specificity labeled primers of the present invention can be to a Flowering Cherry Cultivars " Misaki Ji " quick Early Identification is carried out, method is simple, quick, accurate, is that appearance features distinguish the irreplaceable Molecular tools of Flowering Cherry Cultivars.
Description
(1) technical field
The present invention relates to a Flowering Cherry Cultivars " Misaki Ji " molecular specificity labeled primers and utilize the molecular specificity mark
The method that a note primer pair Flowering Cherry Cultivars " Misaki Ji " carries out Rapid identification.
(2) background technology
Oriental cherry is under the jurisdiction of the rose family (Rosaceae) cherry category (Cerasus), is world-renowned ornamental plant.It is currently known
Flowering Cherry Cultivars have more than 300, because its plant type is graceful, pattern is gorgeous, whole florescence duration is long, there is great application on gardens
Value.In recent years, China various regions large-scale plantation oriental cherry and applied in the greenery patches such as park, school, street, garden, as morning
One of spring main ornamencal flower and tree.The cities such as Beijing, Wuhan, Qingdao, Shanghai are held the Sacura Festival one after another every year, and oriental cherry industry obtains fast
Exhibition is hailed, this promotes increasing peasant income for building beautiful China, promotes Integrated Development of The Mountainous Region and building a New Socialist Countryside,
All tool is of great significance.
China's cherry platymiscium aboundresources, it is widely distributed, and cherry platymiscium phenotype has stronger plasticity, interspecific hybridization is held
Easily, kind is large number of, and Traits change is smaller between some kinds, and traditional form classification is difficult quick, accurate and effective evaluation and area
Point.Academia at present plantation Flowering Cherry Cultivars Name and Description it is all very chaotic, " synonym " or " homonym " phenomenon compared with
For serious, the title of shortage unified standard and the taxonomic hierarchies of scientific system, cultivar identification, popularization, exchange and new product are not easy to
Kind cultivation, therefore need badly and set up a scientific and reasonable Flowering Cherry Cultivars taxonomic identification system.
Flowering Cherry Cultivars investigation and classification just in the whole country is also merely by traditional morphological feature, peroxide at present
The method such as compound enzyme and Esterase Isoenzyme Technique, electron-microscope scanning pollen grain and Q type clusterings, these methods in spite of with, but
It is difficult to carry out correctly identifying and applying to Flowering Cherry Cultivars.And the DNA molecular mark being had been widely used in recent years in plant classification circle
Note technology is not yet applied in the researchs such as Flowering Cherry Cultivars classification, product Interspecific relationship and genetic diversity so far.Therefore,
It is necessary to utilize molecular marking technique means, Flowering Cherry Cultivars existing to China carry out science discriminating, not only facilitate oriental cherry product
The foundation of taxonomic identification system is planted, the also further research for cherry platymiscium resource provides molecule foundation.
It is domestic at present to introduce substantial amounts of Flowering Cherry Cultivars, transplanted extensively in each Grand Duchy such as Beijing, Qingdao, Wuhan, Shanghai,
Ornamental value is high, wherein in the majority with late cherry kind, generally with flower amount is big, pattern is gorgeous, petal is more, florescence length, resistance,
The features such as wide adaptability.We pass through long-term investigation work, it is found that 20 evening cherry kinds include red large bamboo hat with a conical crown and broad brim (Cerasus
Serrulata ' Benigasa '), red magnificent (C.serrulata ' Kouka '), a leaf (C.serrulata ' Hisakura '), good fortune
It is green longevity (C.serrulata ' Contorta '), Samantabhadra as (C.serrulata ' Albo-rosea '), Song Yue (C.serrulata
' Superba '), root tuber of aromatic turmeric (C.serrulata ' Grandifora '), red rich (Cerasus × sieboldii ' Beni-
Yutaka '), Yu Yihuang (C.serrulata ' Gioiko '), frontier passes and mountains (C.serrulata ' Kanzan '), big hand lamp
(C.serrulata ' Ojochin '), the red branch of eightfold hang down (C.spachiana ' Plena Rosea '), the former brave tail in city
(C.serrulata ' Albo Plena '), Misaki Ji (Cerasus × yedoensis ' Sakuyahime '), rosefinch
(C.serrulata ' Shujaku '), poplar highest-ranking imperial concubine (C.serrulata ' Mollis '), the vertical (C.spachiana ' Ujou- of rain condition branch
Shidare '), chrysanthemum hang down cherry (C.serrulata ' Plena-pendula '), open country younger sister the back of the body (C.serrulata ' Imose '), the rising sun
The application of mountain cherry (C.serrulata ' Asahiyama ') in gardens is extremely extensive, but " homonym " of these kinds, " same
Thing different name " phenomenon is also abnormal serious, is difficult to discriminate between in terms of phenotypic characteristic, gives the choosing of Landscape Plants Applied, popularization and new varieties
Educate and bring many difficulties, thus put forth effort to develop these stable varieties from molecular level, special DNA fingerprint mark is only reality
The Scientific Approaches of the accurate Rapid identification of existing Flowering Cherry Cultivars.
(3) content of the invention
It is an object of the present invention to provide a Flowering Cherry Cultivars " Misaki Ji " molecular specificity labeled primers, and utilize this pair of primer
To a Flowering Cherry Cultivars " Misaki Ji " carry out Rapid identification method.
The technical solution adopted by the present invention is：
The molecular specificity labeled primers of a Flowering Cherry Cultivars " Misaki Ji ", the primer sequence is：
Sense primer：5′-TGAGTCCAAACCGGACCGAGAAG-3′；
Anti-sense primer：5′-GACTGCGTACGAATTGACGGGAAT-3′.
The primer pair is to use round pcr, and a Flowering Cherry Cultivars " Misaki Ji is obtained by a large amount of screening tests " specific DNA
After fragment, by the fragment cloning and sequencing, specific primer is designed based on obtained DNA sequence dna, with the specific primer
Flowering Cherry Cultivars are entered with performing PCR amplification, only " a Misaki Ji " can obtain the specific fragment of 491bp sizes, and other Flowering Cherry Cultivars are not
Specific fragment can be obtained.It should be noted that molecular specificity labeled primers of the present invention are only limitted to the identification (mirror of Flowering Cherry Cultivars
It is fixed its whether a Wei " Misaki Ji "), i.e., testing sample is only limitted to oriental cherry.
The invention further relates to it is a kind of using described molecular specificity labeled primers to a Flowering Cherry Cultivars " Misaki Ji " carry out it is fast
The method of speed identification, methods described is：The genomic DNA of Flowering Cherry Cultivars blade to be measured is extracted as template, it is special with the molecule
Different in nature labeled primer enters performing PCR amplification, electrophoresis detection is carried out to amplified production as amplimer, if electrophoresis result occurs
The DNA bands of 491bp sizes, then Flowering Cherry Cultivars to be measured are a Flowering Cherry Cultivars " Misaki Ji ", it is on the contrary then no；The molecular specificity mark
Remember that primer sequence is：
Sense primer：5′-TGAGTCCAAACCGGACCGAGAAG-3′；
Anti-sense primer：5′-GACTGCGTACGAATTGACGGGAAT-3′.
The inventive method key is that the selection of amplimer, DNA are extracted, PCR reaction systems and reaction condition are determined, with
And electrophoresis detection, it can be carried out according to this area conventional method.
It is preferred that, PCR amplification system composition of the present invention is as follows：
Surplus is ddH2O。
The PCR amplification conditions are as follows：95 DEG C of pre-degeneration 3min；95 DEG C of denaturation 40s, 57 DEG C of annealing 40s, 72 DEG C of extensions
2min, totally 35 circulations；Most after 72 DEG C of filling-in 7min, final temperature is 4 DEG C.
PCR Buffer final concentration of 1 ×, refer in PCR Buffer concentration of each component in reaction system with 1 ×
PCR Buffer are identical, generally from 10 × PCR Buffer that volume is reaction system volume 1/10.10×PCR Buffer
Composition is：100mM Tris-HCl(pH 8.5)、500mM KCl、25mM MgCl2And 1.0%Triton-X-100, solvent is
ddH2O。
Specifically, methods described is as follows：
(1) oriental cherry blade to be measured is taken, liquid feeding nitrogen is ground, the genomic DNA of oriental cherry blade to be measured is extracted with SDS-CTAB methods；
(2) genomic DNA using step (1) extraction is drawn as template using the molecular specificity labeled primers as amplification
Thing, enters performing PCR amplification：
The every 25 μ L compositions of PCR reaction systems are as follows：
ddH2O complements to 25 μ L；
PCR reaction conditions are as follows：
95 DEG C of pre-degeneration 3min；95 DEG C of denaturation 40s, 57 DEG C of annealing 40s, 72 DEG C of extension 2min, totally 35 circulations；Most after
72 DEG C of filling-in 7min, final temperature is 4 DEG C；
(3) the μ L of step (2) amplified production 5 are taken, are mixed with the bromjophenol blue buffer solutions of 1 μ L 0.25%, point sample is in 1.5% fine jade
On sepharose, the electrophoresis in 1 × TAE buffer solutions, under 5V/cm voltages, electrophoresis terminates rear EB dyeing, in automatic gel images point
Taken a picture in analyzer, if 491bp DNA bands, a Flowering Cherry Cultivars Wei " Misaki Ji to be measured occurs in electrophoresis result "；It is on the contrary then no.
Beneficial effect of the present invention is mainly reflected in：Molecular specificity labeled primers of the present invention can be to a Flowering Cherry Cultivars " Misaki Ji "
Quick discriminating is carried out, method is simple, quick, accurate, be that appearance features distinguish the irreplaceable Molecular tools of Flowering Cherry Cultivars.
(4) illustrate
Fig. 1 is the result that 20 kinds of Flowering Cherry Cultivars are entered with performing PCR amplification；M is DNA molecular amount standard；Numbering 14 is oriental cherry product
A Zhong " Misaki Ji ", has amplified the specific DNA band that molecular weight is 491bp；Remaining numbering is other Flowering Cherry Cultivars, be there are no
The specific DNA band of many sizes of 400bp is produced.
(5) embodiment
With reference to specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This：
Embodiment 1：
(1) extraction of Flowering Cherry Cultivars genomic DNA：
Flowering Cherry Cultivars young leaflet tablet 0.01g to be measured is taken, liquid feeding nitrogen is thoroughly ground, and the extraction of genomic DNA uses SDS-
CTAB methods, through repeatedly extracting, to extract the genomic DNA crude extract for obtaining Flowering Cherry Cultivars.DNA crude extracts are again through Magabio cores
Sour purification kit is purified after (rich day Bioer, Hangzhou, China), passes through 1.5% agarose gel electrophoresis and DNA/
RNA ultraviolet specrophotometers (GeneQuant Pro, GE Healthcare) detect integrality, purity and concentration.OD260/
OD280>1.8 DNA sample is used for subsequent PCR amplification.DNA extracts are standby in -20 DEG C of refrigerator storages.
(2) specific PCR amplification primer is designed, the sequence of primer pair is：
Sense primer：5 '-TGAGTCCAAACCGGACCGAGAAG-3 ' and anti-sense primer：5′-
GACTGCGTACGAATTGACGGGAAT-3 ', by Shanghai, biotechnology Co., Ltd synthesizes.
(4) PCR is expanded：
PCR reaction solutions are constituted：10 × PCR Buffer, 2.5 μ L, 10mmol/L dNTPs 2.5 μ L, 25mmol/L
MgCl2μ L, the 10mM special primers of 2.5 μ L, 5U/ μ L Taq DNA enzymatics 0.2 are to each 1 μ L, 20ng/ μ L template DNAs 3 μ L, ddH2O is mended
Enough to 25 μ L.
Amplified reaction is carried out on TC-XP type amplification instruments.Amplification condition：95 DEG C of pre-degeneration 3min；95 DEG C are denatured 40s, 57
DEG C annealing 40s, 72 DEG C extension 2min, totally 35 circulation；Most after 72 DEG C of filling-in 7min, final temperature is 4 DEG C.
(4) electrophoresis detection：The μ L of step (3) pcr amplification product 5 are taken, are mixed with the bromjophenol blue buffer solutions of 1 μ L 0.25%, point sample
In on 1.5% Ago-Gel, in 1 × TAE buffer solutions, electrophoresis under 5V/cm voltages, after electrophoresis terminates, containing 0.5 μ g/
Dyed in the mL EB aqueous solution 30 minutes, then train and taken a picture on the clear automatic gel image analysis instrument of JS-380A in Shanghai.
According to the method described above, to 20 Flowering Cherry Cultivars, (numbering 1~20 represents Flowering Cherry Cultivars and is followed successively by respectively：1st, red large bamboo hat with a conical crown and broad brim
(C.serrulata ' Benigasa '), 2, red magnificent (C.serrulata ' Kouka '), 3, one leaf (C.serrulata
' Hisakura '), 4, the good fortune green longevity (C.serrulata ' Contorta '), 5, it is Samantabhadra as (C.serrulata ' Albo-
Rosea '), 6, Song Yue (C.serrulata ' Superba '), 7, root tuber of aromatic turmeric (C.serrulata ' Grandifora '), 8, Hong Feng
(Cerasus × sieboldii ' Beni-yutaka '), 9, Yu Yihuang (C.serrulata ' Gioiko '), 10, frontier passes and mountains
(C.serrulata ' Kanzan '), 11, big hand lamp (C.serrulata ' Ojochin '), 12, the red branch of eightfold hang down
(C.spachiana ' Plena Rosea '), 13, the former brave tail (C.serrulata ' Albo Plena ') in city, a 14, Misaki Ji
(Cerasus × yedoensis ' Sakuyahime '), 15, rosefinch (C.serrulata ' Shujaku '), 16, poplar highest-ranking imperial concubine
(C.serrulata ' Mollis '), 17, rain condition branch vertical (C.spachiana ' Ujou-shidare '), 18, the vertical cherry of chrysanthemum
(C.serrulata ' Plena-pendula '), 19, the open country younger sister back of the body (C.serrulata ' Imose '), 20, rising sun mountain cherry
The PCR AFLP systems of (C.serrulata ' Asahiyama ') carry out electrophoresis detection, as a result see Fig. 1.
A clear bright, stable molecular weight has been amplified in the Flowering Cherry Cultivars " Misaki Ji for being only wherein 14 from numbering "
About 491bp specific DNA band, and the Flowering Cherry Cultivars of remaining numbering, there are no the special DNA bands production of many sizes of 400bp
It is raw, there are not other non-purpose bands to produce, it is seen that the molecular specificity marker that the present invention is developed is used for Flowering Cherry Cultivars " Misaki yet
The identification of a Ji ", its stability, specificity are very high.
Claims (1)
1. the molecular specificity labeled primers of a Flowering Cherry Cultivars " Misaki Ji ", the primer sequence is as follows：
Sense primer：5′-TGAGTCCAAACCGGACCGAGAAG-3′；
Anti-sense primer：5′-GACTGCGTACGAATTGACGGGAAT-3′.
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| RAPD、SRAP和ISSR标记在香菇种质资源的应用及其SCAR标记的建立;应正河;《中国优秀硕士学位论文全文数据库》;20061215;D048-120 * |
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