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CN105886614B - A kind of identification method and its primer special of upland cotton Asia chicken foot leaf germplasm materials - Google Patents

A kind of identification method and its primer special of upland cotton Asia chicken foot leaf germplasm materials Download PDF

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CN105886614B
CN105886614B CN201610246829.9A CN201610246829A CN105886614B CN 105886614 B CN105886614 B CN 105886614B CN 201610246829 A CN201610246829 A CN 201610246829A CN 105886614 B CN105886614 B CN 105886614B
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chicken foot
sub
leaf
foot leaf
asia
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CN105886614A (en
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赵军胜
姜辉
高明伟
王家宝
王秀丽
陈莹
张超
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Shandong Cotton Research Center
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Shandong Cotton Research Center
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    • C12Q1/6888Nucleic acid products used in the analysis of nucleic acids, e.g. primers or probes for detection or identification of organisms
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    • C12Q2600/13Plant traits

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Abstract

The present invention provides the identification method and its primer special of a kind of upland cotton Asia chicken foot leaf germplasm materials, and the sub- chicken foot leaf character that all to upland cotton Asia chicken foot leaf germplasm materials can have carries out early stage Rapid identification, accelerates breeding process.Using the genomic DNA of upland cotton to be measured as template, PCR amplification is carried out using specific primer, is judged according to the banding pattern that PCR product is presented on gel, containing only 230bp banding pattern is sub- chicken foot leaf homozygote, it is normal broad-leaved containing 200bp banding pattern, the two all has plenty of sub- chicken foot leaf heterozygote.The present invention can indoors identify sub- chicken foot leaf germplasm materials purity with seed or seedling, accelerate breeding process, improve the efficiency of selection of excellent sub- chicken foot leaf homozygosis material.

Description

A kind of identification method and its primer special of upland cotton Asia chicken foot leaf germplasm materials
Technical field
The present invention relates to the identification methods and its primer special of a kind of upland cotton Asia chicken foot leaf germplasm materials, belong to cotton point Sub- biological applications field.
Background technique
Cotton is the important industrial crops in China, and major product cotton fiber is important textile industry raw material, is produced in weaving The effect that can not be substituted is played in industry.Blade is the photosynthetic organs that heavy cotton is wanted, and is responsible for luminous energy being converted to carbohydrate For plant growth and development.The variation of blade shape has a significant impact to the growth and development of cotton, and then influences cotton fiber production Amount and quality.Upland cotton is leaf to be divided into normal leaf and drastic crack leaf.It is duck's foot type that normal leaf is leaf, and leaf splits shallower, and leaf area is big, Mismanagement is typically easy to cause Cotton Canopy is strongly fragrant to cover, and so that middle and lower part cotton boll is generated severe detachment because of illumination deficiency, overcast and rainy year Part be easy to cause rotten bell, is easy to influence the spraying effect of defoliant, influences machine pick cotton quality.
Sub- chicken foot leaf belongs to cotton drastic crack leaf, and leaf is split relatively deeply, and leaf-area coefficient is moderate;It is being effectively improved Architecture of Cotton Canopy While, the problem of chicken foot leaf cotton Efficient leaf area deficiency can be made up to a certain extent;In addition, sub- chicken foot leaf phenotype can be used as Morphological markers have larger purposes in cotton hybrid vigor utilization for distinguishing true and false hybrid.
Currently, generally identifying sub- chicken foot leaf material by investigating leaf phenotype in flower bud phase and florescence in production.To sub- chicken The identification of foot leaf homozygosis material and hybrid material is usually required preferred material kind at plant, in leaf point of next season plant It can determine whether the single plant is homozygous type from phenotypic evaluation rear.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of identification method of upland cotton Asia chicken foot leaf germplasm materials and its Primer special, the sub- chicken foot leaf character that all to upland cotton Asia chicken foot leaf germplasm materials can have carry out early stage Rapid identification, add Fast breeding process.
Therefore, the technical solution adopted by the present invention is as follows: a kind of identification method of upland cotton Asia chicken foot leaf germplasm materials, with The genomic DNA of upland cotton to be measured be template, using primer pair: forward primer 5 '-GATGCACCAGATCCTTTTAT -3 ' and Reverse primer 5 '-GGTACATCGGAATCACAGT -3 ' carries out PCR amplification, the banding pattern presented on gel according to PCR product Judged, it is normal broad-leaved containing 200bp banding pattern that containing only 230bp banding pattern, which is sub- chicken foot leaf homozygote, and the two has It is sub- chicken foot leaf heterozygote.
Above-mentioned banding pattern is master tape banding pattern.
The pcr amplification reaction system and program are as follows:
PCR system is 20ul, includes 2 × EasyTaqPCR Supermix 10ul, DNA profiling 1ul, the forward primer With each 1ul of reverse primer, DDH2O 7ul;
PCR program is 94 DEG C of initial denaturation 5min, 94 DEG C of denaturation 30s, 55 DEG C of annealing 30s, 72 DEG C of extension 50s (35 recycle) Extend 10min after 72 DEG C;
Another object of the present invention is to provide the primer in preparation for identifying or assisting identification upland cotton Asia chicken foot leaf kind Application in the kit of material.
The present invention also provides a kind of for identifying or assisting the kit of identification upland cotton Asia chicken foot leaf germplasm materials, contains The primer.
The existing method identified sub- chicken foot leaf material has the following disadvantages:
1. not being that too obviously, can only identify, can not sieve since flower bud phase since leaf splits phenotype in cotton fertility performance early period Select the sub- chicken foot leaf single plant that wheat seeding is excellent.
It is easily protected from environmental 2. leaf phenotype belongs to morphological markers, brings certain difficulty to the stability of phenotypic evaluation.
3. from hereditary angle, sub- chicken foot leaf is incomplete dominant lnheritance to normal leaf, but in crop field breeding process Middle homozygous sub- chicken foot leaf is homozygous larger with the differentiation difficulty of heterozygous, affects the screening effect of excellent homozygous sub- chicken foot leaf material Rate affects breeding process.
Therefore, for above-mentioned prior art the shortcomings that, the present invention have selected the sub- chicken foot leaf material of based on PCR molecular labeling Screening technique, the method for the present invention can in advance identify sub- chicken foot leaf material, and ensure sub- chicken foot leaf material screening simultaneously Accuracy and high efficiency.
Compared with prior art the invention has the following advantages that
1. can be identified indoors with seed or seedling sub- chicken foot leaf germplasm materials purity by the invention, big The identification period of sub- chicken foot leaf material can be advanceed to seedling stage by Tanaka, filter out the sub- chicken foot leaf material being excellent in seedling stage;
2. the DNA molecular marker that the present invention uses belongs to neutral label, do not influenced by period, environment and histoorgan, Qualification result is reliable and stable;
3. the present invention can distinguish sub- chicken foot leaf homozygote and heterozygote material, convenient for accelerating breeding process, excellent Asia is improved The efficiency of selection of chicken foot leaf homozygosis material.
Detailed description of the invention
Fig. 1 is the form phenotype and marker genetype Statistical Comparison of part single plant.
Specific embodiment
Technical solution of the present invention and its generated technical effect are carried out below with reference to specific test method further Elaboration, the following description is only intended to explain the invention, but the present invention is limited in any way, based on the present invention religion It is any made by leading to transform or replace, it all belongs to the scope of protection of the present invention.
Method used in the present invention is conventional method in that art unless otherwise specified.
Test material as used in the following examples, reagent etc., are commercially available unless otherwise specified.Institute Each water article kind (strain) used is conventional use of kind (strain) in breeding field, by country authorization assert or Technical appraisement, can be in species bank acquisition or market purchasing.
A kind of identification method of upland cotton Asia chicken foot leaf germplasm materials of one, of embodiment, steps are as follows:
1. seed or seedling stage take upland cotton fresh material tender leaf, genomic DNA is extracted, and detect to DNA mass, It is diluted to 50ng/ul;
2. according to known cotton EST series, a pair of special SSR label primer of SSRhunter software design, forward primer: 5'—GATGCACCAGATCCTTTTAT—3'(SEQ ID No.1);Reverse primer: 5 '-GGTACATCGGAATCACAGT- 3’(SEQ ID No.2)。
The est sequence of design primer is following (SEQ ID No.3), and underscore indicates primer location.
CTGGACTAACACCAATAATCACTAAACTTTGATTAAAATAACATTTCAGTTACTAAACTTTCAAAAGTG ACAAATCAGTCATTAACATTTACGAAAAGTGACAAATTAGTCACCTGAGAGTGGACATCTGACGTGGCCCGTTAGGG TGCCACGTTGAACATGATCGGATGCACCAGATCCTTTTATTAGTTTATAAGGATTACCAACTAAATAGAAGAAGAAG AAGAAGAGGAAGAAGAAGAAGAAAAGGAAGAAGAAGAAGAAGAATAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAA GAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAGAAAAAGAGAAATGGAAATA CCCACTGTGATTCCGATGTACCGTCATTTGGACGGAATTTAAAAGACACTTTAGTTGTTATTAAGAACTGATTTTTA TTTGGATTTAAAAGAC
3. carrying out PCR amplification using diluted DNA as template, reaction system and operation program are as follows:
PCR system is 20ul, includes 2 × EasyTaqPCR Supermix 10ul, DNA profiling 1ul, upstream primer is under Swim each 1ul of primer, DDH2O 7ul;
PCR program is 94 DEG C of initial denaturation 5min, 94 DEG C of denaturation 30s, 55 DEG C of annealing 30s, 72 DEG C of extension 50s (35 recycle) Extend 10min after 72 DEG C;
4.PCR product is separated by electrophoresis in 8% PAGE glue, and voltage 120V, 2h are dyed using argentation;
5. marker genetype is identified, is judged according to the banding pattern that PCR product is presented on gel, contain only 230bp band Type is sub- chicken foot leaf homozygote, is normal broad-leaved containing 200bp banding pattern, and the two all has plenty of sub- chicken foot leaf heterozygote.
Two, of embodiment carries out the identification of sub- chicken foot leaf with the method for the present invention to 100 samples
1. material:
No. 28 are ground as female parent with normal broad-leaved material Shandong cotton, and sub- chicken foot leaf homozygosis material S131189 system is male parent, building packet Contain the sub- chicken foot leaf and normal broad-leaved separation F of 229 single plants2Group.
2.DNA is extracted:
100 single plants are randomly selected in seedling stage, extract young leaflet tablet, extract genomic DNA with CTAB method, and to DNA matter Amount is detected, and concentration is adjusted to 50ng/ul.
3.PCR reaction:
PCR reaction carries out on ABI9700PCR instrument, system 20ul, 2 × EasyPCR mix including 10ul, 1ul's DNA profiling, upstream primer and downstream primer each 1ul, the DDH of 7ul2O.Response procedures are 94 DEG C of initial denaturation 5min, 94 DEG C of denaturation 30s, 55 DEG C of annealing 30s, 72 DEG C of extension 50s, 35 recycle, 72 DEG C of extension 10min.
4. electrophoresis and genotype identification:
PCR product is separated by electrophoresis on 8% polyacrylamide gel, as shown in Figure 1, statistic mass 230bp (Brazil 014 genotype) and 200bp (S131189) banding pattern.Only 230bp banding pattern genotype is denoted as B;Only 200bp banding pattern genotype is A;H is denoted as comprising two kinds of 230bp and 200bp banding patterns simultaneously.
5. leaf phenotypic evaluation:
It is identified respectively at flower bud phase and seedling stage the separation phenotype leaf to group.Normal broad-leaved is labeled as B, sub- chicken foot leaf Homozygosis label is that sub- chicken foot leaf hybrid marker is H.
6. data statistics:
The form phenotype and genotype of segregating population are counted respectively, and check the identical situation of genotype and phenotype.
7. result and analysis:
The statistics display of form phenotype, in 100 single plants, 23 plants of normal broad-leaved, sub- chicken foot leaf is 32 plants homozygous, sub- chicken foot leaf 45 plants of heterozygosis.Genotype statistics shows that in 100 individuals, the individual that genotype is A is 40, and gene is the individual 36 of H, gene Type is individual 23 of B.The phenotype of normal broad-leaved is consistent with genotypic expression, the phenotype and gene of sub- chicken foot leaf homozygosis and heterozygosis Type has 8 single plant performance differences, and the Phenotypic Expression that 6 genotype are A is sub- chicken foot leaf heterozygosis, the phenotype table that 2 genotype are H It is now homozygous for sub- chicken foot leaf.By 100 single plant kinds at plant, the coincide plant phenotype of single plant of 92 genotype and phenotype does not occur Separation, the plant for the single plant that 6 genotype are A do not occur all sub- chicken foot leafs of leaf separation, illustrate that 6 single plants are all Sub- chicken foot leaf homozygosis single plant.2 genotype are H, and phenotypic evaluation is the single plant of A, all sub- chicken foot leafs of the plant of 1 single plant, Other 1 shows as sub- chicken foot leaf and normal leaf separation.
By comparing it is known that the accuracy rate that routine phenotypic is identified is 92%, and genotype identification of the present invention is accurate Rate is 99%;And routine phenotypic identification can only be identified since flower bud phase, can not screen the excellent sub- chicken foot leaf single plant of wheat seeding, And genotype identification of the present invention can advance to seedling stage, filter out the sub- chicken foot leaf material being excellent in seedling stage.This illustrates this hair It is bright more more reliable than Morphological Identification based on the identification method of molecular labeling.

Claims (2)

1. a kind of identification method of upland cotton Asia chicken foot leaf germplasm materials, characterized in that the genomic DNA with upland cotton to be measured is Template, using primer pair: forward primer 5 '-GATGCACCAGATCCTTTTAT -3 ' and reverse primer 5 ' - GGTACATCGGAATCACAGT -3 ' carries out PCR amplification, is judged according to the banding pattern that PCR product is presented on gel, only It is sub- chicken foot leaf homozygote containing 230bp banding pattern, is normal broad-leaved containing 200bp banding pattern, the two some is sub- chicken feet Leaf heterozygote.
2. a kind of for identifying or assisting the kit of identification upland cotton Asia chicken foot leaf germplasm materials, characterized in that containing having the right It is required that 1 primer.
CN201610246829.9A 2016-04-20 2016-04-20 A kind of identification method and its primer special of upland cotton Asia chicken foot leaf germplasm materials Active CN105886614B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103757030A (en) * 2014-01-14 2014-04-30 浙江农林大学 Alleles for regulating and controlling two types of main stem table fur types of upland cotton, and single stranded conformational polymorphism (SSCP) molecular marker for identification thereof
WO2014172529A1 (en) * 2013-04-17 2014-10-23 Pioneer Hi-Bred International, Inc. Methods for characterizing dna sequence composition in a genome

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014172529A1 (en) * 2013-04-17 2014-10-23 Pioneer Hi-Bred International, Inc. Methods for characterizing dna sequence composition in a genome
CN103757030A (en) * 2014-01-14 2014-04-30 浙江农林大学 Alleles for regulating and controlling two types of main stem table fur types of upland cotton, and single stranded conformational polymorphism (SSCP) molecular marker for identification thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
Mapping and genomic targeting of the major leaf shape gene (L) in Upland cotton (Gossypium hirsutum L.);Andres RJ et al.;《Theoretical and Applied Genetics》;20140131;第127卷(第1期);摘要
陆地棉张氏鸡脚叶标记系的鉴定与比较;韩世杰等;《棉花科学》;20160229;第38卷(第1期);第11-14页

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