CN113005219A - SSR marker fingerprint identification method of hypsizigus marmoreus Rongbai 001(F) strain, construction method and application thereof - Google Patents

Abstract

The invention discloses a method for identifying an SSR marker fingerprint of a Hypsizigus marmoreus Rong & white 001(F) strain, and a construction method and application thereof. The construction method comprises the following steps: (1) culturing hyphae; (2) extracting genome DNA; (3) detecting SSR molecular markers; (4) and (5) detecting by capillary electrophoresis. The application comprises the following steps: and performing SSR marker amplification on the hypsizigus marmoreus strain, comparing the obtained banding pattern with the fingerprint spectrum, and obtaining the hypsizigus marmoreus rong-white 001(F) strain if the banding pattern is consistent with the fingerprint spectrum. Compared with conventional morphological detection, antagonism test and fruiting test, the method has the advantages of short detection time, high accuracy and good repeatability, and has the specificity of the honor 001(F) strain of hypsizygus marmoreus in the collected 59 hypsizygus marmoreus cultivation main cultivation strains at home and abroad.

Description

SSR marker fingerprint identification method of hypsizigus marmoreus Rongbai 001(F) strain, construction method and application thereof

Technical Field

The invention belongs to the technical field of detection of hypsizigus marmoreus strains, and particularly relates to an SSR marker fingerprint identification method of hypsizigus marmoreus rong-white 001(F) strains, and a construction method and application thereof.

Background

Hypsizigus marmoreus (Peck) H.E.Bigelow, a species of Basidiomycota, Agaricales, Lyophyllaceae, is named due to marble patches on the surface of its pileus. The seafood soup is attractive in appearance, crisp and tender in texture, unique in seafood flavor and economical in price, and is popular with consumers. The hypsizigus marmoreus not only contains abundant vitamins and 18 amino acids, but also has the functions of hemolysis, antioxidation, leukemia and lymphoma cell inhibition, blood fat reduction, inflammation resistance, antioxidation and the like in components such as micromolecular compounds, polysaccharide, polypeptide and the like contained in the hypsizigus marmoreus through recent research, and is edible and medicinal fungi with high economic value. Since the first industrialized hypsizigus marmoreus cultivation enterprise in China established in 2001, hypsizigus marmoreus becomes one of the novel edible fungi which are rapidly developed in the market in China. The total industrial production of the hypsizigus marmoreus in 2019 is 32.8 ten thousand tons, the yield is increased by 58.63% in comparison with that in 2018, the yield accounts for 9.6% of the total industrial production of the edible fungi, and the hypsizigus marmoreus is ranked the third in the total production of the edible fungi in industrial cultivation in China.

The high-quality strain plays a very important role in the industrial cultivation of hypsizigus marmoreus. At present, hypsizigus marmoreus strains used by industrialized production enterprises in China are mainly introduced into Japan or further bred by hybridization on the basis of the introduced strains, the cultivated hypsizigus marmoreus has brown fruiting bodies called as crab-flavor mushrooms, and the cultivated hypsizigus marmoreus has white fruiting bodies called as white beech mushrooms or yulong mushrooms. Although the yield of factory production is improved year by year, partial strains still have the problems of long cultivation period, low yield per unit, poor appearance uniformity of single fruiting body, easy occurrence of cap formation and the like, and the defects can cause the increase of production cost and reduce the market competitiveness of products. On the other hand, the strain diversity of the hypsizigus marmoreus factory production strain is not high, the product appearance is similar, and the diversified demands of market consumers cannot be met. The method has rich wild and natural hypsizigus marmoreus cultivation resources in China, efficiently utilizes the high-quality resources, expands the genetic basis of strains, and is beneficial to breeding of high-yield, high-quality and characteristic hypsizigus marmoreus strains in China.

With the promulgation and implementation of the protection law of new species of international plants, the establishment of a mature, rapid and accurate molecular biology identification technical system becomes a powerful means for protecting the intellectual property rights of edible fungus varieties.

Disclosure of Invention

Hypsizygus marmoreus (Hypsizygus marmoreus) Ronga 001(F) was deposited at the China center for type culture Collection on 26 months 10 and 2020, address: wuhan, Wuhan university; the preservation number is CCTCC NO: m2020640.

The invention aims to solve the technical problem of providing an SSR marker fingerprint of a hypsizigus marmoreus Rongbai001 (F) strain and a construction method and application thereof.

The SSR marker fingerprint of the 'Rongbai 001 (F)' strain of hypsizigus marmoreus disclosed by the invention consists of 6 pairs of SSR markers, SSR primers are developed based on simple repeated sequence segments of hypsizigus marmoreus genomes, the SSR primers are good in amplification band type and high in repeatability, and detailed marker information is shown in a table 1:

TABLE 1 SSR tag detailed information List

The invention relates to a method for constructing an SSR marker fingerprint of a 'Rongbai 001 (F)' strain of hypsizigus marmoreus, which comprises the following steps:

(1) hypha culture: inoculating Hypsizigus marmoreus strain to potato glucose agar solid culture medium, culturing at 22 deg.C for 8d, and collecting mycelium;

(2) extraction of genomic DNA: genomic DNA is extracted by using a Mayjie fungus DNA extraction kit according to the kit experimental steps, and 2 mu l of DNA is taken for carrying out 1.2% agarose gel electrophoresis detection. Detecting the concentration and purity of the total genome DNA by an ultraviolet spectrophotometry, and adjusting the concentration of the sample DNA to be consistent;

(3) SSR molecular marker primer development: selecting a polymorphic sequence to design 20 pairs of SSR primers and synthesizing according to the genome re-sequencing result of the hypsizigus marmoreus strain;

(4) detection of SSR molecular markers: carrying out PCR amplification of the gene SSR marker on the extracted DNA;

(5) and (3) electrophoresis detection: mixing the product obtained by PCR amplification with formamide sample adding buffer solution, denaturing, and detecting on a computer;

(6) GeneMapper data analysis.

The method for constructing the SSR marker fingerprint of the Hypsizigus marmoreus Rong & white 001(F) strain is characterized by comprising the following steps of: the step (2) of extracting the genome DNA comprises the following specific steps:

(1) adding a fungus sample into liquid nitrogen for fully grinding;

(2) adding 360 μ l of Buffer STE and 40 μ l of Buffer SDS into the ground powder rapidly, quickly whirling and mixing uniformly, placing the centrifuge tube in a water bath at 65 ℃ for 15min, and reversing the centrifuge tube in the water bath process to mix the sample for several times;

(3) adding 5 μ l RNase Solution into the lysate, mixing by vortex, and standing at room temperature for 15-30 min;

(4) adding 140 μ l of buffer PS, vortexing and shaking for 30s, and standing on ice for 10 min;

(5) 13000g was centrifuged for 5min at room temperature, and 400. mu.l of the supernatant was carefully transferred to a new centrifuge tube;

(6) add 600. mu.l of BufferPBD to the sample, vortex and mix for 30 s;

(7) loading the DNA binding column in a collecting tube, transferring half of the mixed solution to the column, and centrifuging at 8000g for 1 min;

(8) pouring off the filtrate, putting the column back into the collecting pipe, transferring the residual mixed solution into the column, and centrifuging for 1min at 8000 g;

(9) pouring the filtrate and putting the column back into the collecting pipe, adding 600 mul Buffer GW2 into the column, and centrifuging for 1min at 8000 g;

(10) repeating the step 9;

(11) pouring off the filtrate, putting the column back into the collecting pipe, centrifuging for 2min at 10000g to remove the residual ethanol in the column;

(12) transferring the column to a new 1.5ml centrifuge tube, adding 30 μ l of Buffer AE preheated to 65 ℃ to the center of the membrane of the column, standing at room temperature for 2min, centrifuging at 10000g for 1 min;

(13) mu.l of DNA was subjected to 1.2% agarose gel electrophoresis, 2. mu.l of DNA was subjected to NanoDrop spectrophotometry, and the remaining DNA was stored at-20 ℃.

The PCR amplification system in the step (3) is as follows: total volume 10 μ l, including: 10 XPCR buffer 1 mul, 2.5mmol/l dNTP 0.8 mul, 5U/mul TAKARA HSTaq enzyme 0.1 mul, 5 mul mol/l TP-M130.5 mul, 5 mul mol/l SSR mark specific primer total volume 0.6 mul respectively, concentration 20 ng-30 ng/mul extracted template DNA 1.2 mul, ddH₂O 5.2μl；

And (3) PCR reaction conditions: 5min at 95 ℃; 30 cycles of 95 ℃ for 30s, 60 ℃ for 30s, and 72 ℃ for 30 s; 5min at 95 ℃; 30s at 95 ℃, 30s at 53 ℃, 30s at 72 ℃ and 10 cycles; 30min at 60 ℃.

The sample adding buffer solution in the step (5) is 9 mul of mixed solution of molecular weight internal standard and formamide (0.5: 8.5); the amount of the PCR amplification product added was 1. mu.l.

The specific process of denaturation in the step (5) is to denature at 95 ℃ for 3min, and then to cool in an ice-water mixture for 3 min.

The electrophoresis in the step (5) has the following process parameters: the modified polyacrylamide gel is commercial POP7 gel, the electrophoresis buffer solution is 3730buffer EDTA, the injection voltage is 2000V, the running voltage is 15000V, the sample injection time is 10s, the temperature is 60 ℃, the capillary length is 50cm, the power is 200W, the electrophoresis is performed for 20min, and the current and the power are dynamic.

The data analysis in the step (6) is specifically as follows: and (3) importing the detected original data file into analysis software GeneMapper ID3.2, and performing group structure analysis, clustering and heterozygosity analysis and core germplasm resource calculation analysis by using software such as POPGENE, NTSYS and the like. Allele factors (Na, Ne), Nei's genetic diversity index (He), shannon's diversity information index (I) and gene observation heterozygosity (Ho) were analyzed.

TABLE 2 summary of allelic fragment information from SSR primer amplification

The invention discloses an application of SSR labeled fingerprint of a hypsizygus marmoreus Rongbai 001(F) strain, which is characterized in that 6 pairs of SSR primers developed by simple repetitive sequence fragments of hypsizygus marmoreus genomes are utilized, a large number of SSR primers are screened, the number and the number of allelic fragments amplified by the 6 pairs of SSR primers in each hypsizygus marmoreus cultivar are determined by performing banding amplification on the SSR primers of 59 collected hypsizygus marmoreus main cultivars (table 2), and the Rongbai 001(F) strain can be effectively identified in the 59 collected hypsizygus marmoreus cultivars through the number combination of different SSR allelic sites. The relative molecular weight of the amplified allelic locus of each SSR primer can be determined by analyzing by capillary electrophoresis combined software, the strain with the specific SSR allelic fragment combination of the strain Rongbai 001(F) is the hypsizigus marmoreus strain Rongbai 001(F), and the numbering combination of the strain is as follows: (8+16)/(1+2)/2/(14+11+13)/4/1.

The invention has the beneficial effects that: compared with conventional morphological detection, antagonism test and fruiting test, the method has the advantages of short detection time, high accuracy and good repeatability. The operation time required for detection is within 24h (including genome DNA extraction, PCR amplification, electrophoresis analysis and data analysis), while the time required for a conventional antagonism test is at least two weeks, and the time required for a fruiting test is at least 3 months; the method has the specificity of 'Rongbai 001 (F)' strains in the 59 commercial hypsizigus marmoreus main culture strains, and has good application prospect.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise. Wherein:

FIG. 1 is a diagram showing the relative molecular weight peaks of the allelic sites of primer HMSSR5 detected in sequence in selected Hypsizygus marmoreus cultivation material Rongbai 001(F) and several main cultivation commercial varieties;

FIG. 2 is a diagram showing the relative molecular weight peaks of the allelic sites of the primer HMSSR11 detected in sequence in the selected Hypsizygus marmoreus cultivation material Rongbai 001(F) and several main cultivation commercial varieties;

FIG. 3 is a diagram showing the relative molecular weight peaks of the allelic sites of the primer HMSSR36 detected in sequence in the selected Hypsizygus marmoreus cultivation material Rongbai 001(F) and several main cultivation commercial varieties;

FIG. 4 is a diagram showing the relative molecular weight peaks of the allelic sites of the primer HMSSR47 detected in sequence in the selected Hypsizygus marmoreus cultivation material Rongbai 001(F) and several main cultivation commercial varieties;

FIG. 5 is a diagram showing the relative molecular weight peaks of the allelic sites of the primer HMSSR48 detected in sequence in the selected Hypsizygus marmoreus cultivation material Rongbai 001(F) and several main cultivation commercial varieties;

FIG. 6 is a diagram showing the relative molecular weight peaks of the allelic sites of the primer HMSSR61 detected in sequence in the selected Hypsizygus marmoreus cultivation material "Rongbai 001 (F)" and several main cultivation commercial varieties, respectively.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.

Furthermore, reference herein to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one implementation of the invention. The appearances of the phrase "in one embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments.

Example 1:

(1) hypha culture: inoculating Hypsizigus marmoreus strain to potato glucose agar solid culture medium, culturing at 22 deg.C for 8d, and collecting mycelium;

(2) extraction of genomic DNA: genomic DNA is extracted by using a Mayjie fungus DNA extraction kit according to the kit experimental steps, and 2 mu l of DNA is taken for carrying out 1.2% agarose gel electrophoresis detection. Detecting the concentration and purity of the total genome DNA by an ultraviolet spectrophotometry, and adjusting the concentration of the sample DNA to be consistent;

the CTAB method for extracting genome DNA of hyphae comprises the following steps:

adding a fungus sample into liquid nitrogen for fully grinding;

quickly adding 360 mu l of Buffer STE and 40 mu l of Buffer SDS into the ground powder, quickly whirling and uniformly mixing, placing the centrifugal tube in a water bath at 65 ℃ for 15min, and reversing the centrifugal tube in the water bath process to mix the sample for multiple times;

③ adding 5 mul of RNase Solution into the lysate, mixing evenly by vortex, and standing for 15-30min at room temperature;

adding 140 mul of buffer PS, whirling and shaking for 30s, and standing on ice for 10 min;

at room temperature, 13000g is centrifuged for 5min, and 400 mul of supernatant is carefully transferred to a new centrifuge tube;

sixthly, adding 600 mu l of BufferPBD (diluted by absolute ethyl alcohol) into the sample, and uniformly mixing by vortex for 30 s;

seventhly, the DNA binding column is arranged in a collecting pipe, half of the mixed solution is transferred into the column, and 8000g of the mixed solution is centrifuged for 1 min;

eighthly, pouring the filtrate, putting the column back into a collecting pipe, transferring the residual mixed liquid into the column, and centrifuging for 1min at 8000 g;

ninthly, pouring the filtrate, putting the column back to the collecting pipe, adding 600 mu l of BufferGW2 (diluted by absolute ethyl alcohol) into the column, and centrifuging for 1min at 8000 g;

r repeats step 9;

pouring off the filtrate, putting the column back into the collecting pipe, centrifuging for 2min at 10000g to remove the residual ethanol in the column;

transferring the column to a new 1.5ml centrifuge tube, adding 30 μ l of BufferAE preheated to 65 ℃ to the center of the membrane of the column, standing at room temperature for 2min, and centrifuging at 10000g for 1 min;

mu.l of DNA was subjected to 1.2% agarose gel electrophoresis, 2. mu.l of DNA was subjected to NanoDrop spectrophotometry, and the remaining DNA was stored at-20 ℃.

(3) Detection of SSR molecular markers: carrying out PCR amplification of gene SSR markers on the extracted DNA;

the PCR amplification system is as follows: total volume 10 μ l, including: 10 XPCR buffer 1 mul, 2.5mmol/l dNTP 0.8 mul, 5U/mul TAKARA HSTaq enzyme 0.1 mul, 5 mul mol/l TP-M130.5 mul, 5 mul mol/l SSR mark specific primer total volume 0.6 mul respectively, concentration 20 ng-30 ng/mul extracted template DNA 1.2 mul, ddH₂O 5.2μl；

And (3) PCR reaction conditions: 5min at 95 ℃; 30 cycles of 95 ℃ for 30s, 60 ℃ for 30s, and 72 ℃ for 30 s; 5min at 95 ℃; 30s at 95 ℃, 30s at 53 ℃, 30s at 72 ℃ and 10 cycles; 30min at 60 ℃.

(4) And (3) electrophoresis detection: mixing 1 μ l of the product obtained by PCR amplification with 9 μ l of sample buffer solution, denaturing at 95 deg.C for 3min, and cooling in ice water mixture for 3 min; 3 mul of sample is applied to a modified polyacrylamide gel for electrophoresis, the modified polyacrylamide gel is commercial POP7 gel, the electrophoresis buffer solution is 3730buffer EDTA, the injection voltage is 2000V, the operation voltage is 15000V, the sample injection time is 10s, the temperature is 60 ℃, the length of a capillary is 50cm, the power is 200W, the electrophoresis is 20min, the current and the power are dynamic,

(5) analysis of results

Performing PCR amplification and capillary electrophoresis on the hypsizigus marmoreus strain by adopting 6 pairs of SSR primers, and finding a coincidence code combination by analyzing the allelic gene factors (Na, Ne), the Nei's genetic diversity index (He), the shannon's diversity information index (I) and the gene observation heterozygosity (Ho) in combination with the peak diagram of the relative molecular weight of the allelic site: HMSSR5, HMSSR11, HMSSR36, HMSSR47, HMSSR48, HMSSR61, the corresponding band types being: the strain of (8+16)/(1+2)/2/(14+11+13)/4/1 is determined to be the Hypsizigus marmoreus Rongbai 001(F) strain. To ensure the accuracy of the identification, three replicates were recommended.

Taking several main commercial varieties as examples, the peak diagrams of the relative molecular weights of the allelic sites obtained by sequentially detecting 6 pairs of primers are given as shown in the diagrams 1-6 (sequentially: Rongbai 001(F) ②K 2B 2R 15-X2R 14-X1G 13-X6R H2R BS 027X 5R DTG

B4)。

It should be noted that the above-mentioned embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.

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Claims (9)

1. A SSR marker fingerprint identification method of Hypsizigus marmoreus Rong & white 001(F) strain is characterized by comprising the following steps: the fingerprint comprises 6 pairs of SSR markers, and the specific sequence is as follows:

the corresponding combination of the belt type numbers is as follows: (8+16)/(1+2)/2/(14+11+13)/4/1.

2. The method for constructing SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain as claimed in claim 1, which is characterized in that: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

(1) hypha culture: inoculating Hypsizigus marmoreus strain to potato glucose agar solid culture medium, culturing at 22 deg.C for 8d, and collecting mycelium;

(2) extraction of genomic DNA: extracting genome DNA by using a Mayjie fungus DNA extraction kit according to the kit experimental steps, and taking 2 mu l of DNA to carry out 1.2% agarose gel electrophoresis detection; detecting the concentration and purity of the total genome DNA by an ultraviolet spectrophotometry, and adjusting the concentration of the sample DNA to be consistent;

(3) SSR molecular marker primer development: selecting a polymorphic sequence to design 20 pairs of SSR primers and synthesizing according to the genome re-sequencing result of the hypsizigus marmoreus strain;

(4) detection of SSR molecular markers: carrying out PCR amplification of gene SSR markers on the extracted DNA;

(5) and (3) electrophoresis detection: mixing the product obtained by PCR amplification with formamide sample adding buffer solution, denaturing, and detecting on a computer;

(6) GeneMapper data analysis.

3. The method for constructing an SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain according to claim 2, which is characterized in that: the step (2) of extracting the genome DNA comprises the following specific steps:

(1) adding a fungus sample into liquid nitrogen for fully grinding;

(2) adding 360 ul of Buffer STE and 40 ul of Buffer SDS into the ground powder rapidly, quickly whirling and mixing uniformly, placing the centrifuge tube in a water bath at 65 ℃ for 15min, and reversing the centrifuge tube in the water bath process to mix the sample for a plurality of times;

(3) adding 5 μ l RNase Solution into the lysate, mixing by vortex, and standing at room temperature for 15-30 min;

(4) adding 140 μ l Buffer PS, vortexing and shaking for 30s, and standing on ice for 10 min;

(5) 13000g was centrifuged for 5min at room temperature, and 400. mu.l of the supernatant was carefully transferred to a new centrifuge tube;

(6) adding 600 μ l Buffer PBD to the sample, vortex and mix for 30 s;

(7) loading the DNA binding column in a collecting tube, transferring half of the mixed solution to the column, and centrifuging at 8000g for 1 min;

(8) pouring off the filtrate, putting the column back into the collecting pipe, transferring the residual mixed solution into the column, and centrifuging for 1min at 8000 g;

(9) pouring the filtrate and putting the column back into the collecting pipe, adding 600 mul Buffer GW2 into the column, and centrifuging for 1min at 8000 g;

(10) repeating the step 9;

(11) pouring off the filtrate, putting the column back into the collecting pipe, centrifuging for 2min at 10000g to remove the residual ethanol in the column;

(12) transferring the column to a new 1.5ml centrifuge tube, adding 30 μ l of Buffer AE preheated to 65 ℃ to the center of the membrane of the column, standing at room temperature for 2min, centrifuging at 10000g for 1 min;

(13) mu.l of DNA was subjected to 1.2% agarose gel electrophoresis, 2. mu.l of DNA was subjected to NanoDrop spectrophotometry, and the remaining DNA was stored at-20 ℃.

4. The method for constructing an SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain according to claim 2, which is characterized in that: in the step (4), the PCR amplification is carried out by using an amplification system: total volume 10 μ l, including: 10 XPCR buffer 1 mul, 2.5mmol/l dNTP 0.8 mul, 5U/mul TAKARA HSTaq enzyme 0.1 mul, 5 mul mol/lTP-M130.5 mul, 5 mul mol/l SSR mark specific primer total volume 0.6 mul respectively, concentration 20 ng-30 ng/mul extracted template DNA 1.2 mul, ddH₂O 5.2μl；

And (3) PCR reaction conditions: 5min at 95 ℃; 30 cycles of 95 ℃ for 30s, 60 ℃ for 30s, and 72 ℃ for 30 s; 5min at 95 ℃; 30s at 95 ℃, 30s at 53 ℃, 30s at 72 ℃ and 10 cycles; 30min at 60 ℃.

5. The method for constructing an SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain according to claim 2, which is characterized in that: in the step (5), 9. mu.l of a molecular weight internal standard and formamide mixed solution (0.5: 8.5) and 1. mu.l of the PCR product are added into each hole of a 96-hole plate and mixed uniformly.

6. The method for constructing an SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain according to claim 2, which is characterized in that: in the step (5), the denaturation is carried out for 3min at 95 ℃, and then the mixture is placed in an ice-water mixture for cooling for 3 min.

7. The method for constructing an SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain according to claim 2, which is characterized in that: in the step (5), the modified polyacrylamide gel of the electrophoresis is commercial POP7 gel, the electrophoresis buffer solution is 3730buffer EDTA, the injection voltage is 2000V, the operation voltage is 15000V, the sample injection time is 10s, the temperature is 60 ℃, the length of the capillary is 50cm, the power is 200W, the electrophoresis is 20min, and the current and the power are dynamic.

8. The method for constructing an SSR marker fingerprint of Rongbai 001(F) hypsizigus marmoreus strain according to claim 2, which is characterized in that: in the step (6), the data analysis is to import the original data ". fsa" file into the analysis software GeneMapper ID3.2, perform group structure analysis, clustering and heterozygosity analysis by using POPGENE and NTSYS software, and perform core germplasm resource calculation analysis; allele factors (Na, Ne), Nei's genetic diversity index (He), shannon's diversity information index (I) and gene observation heterozygosity (Ho) were analyzed.

9. The application of SSR marker fingerprint spectrum of the Rongbai 001(F) hypsizigus marmoreus strain as claimed in claim 1, which is characterized in that: the SSR marker fingerprint of the Hypsizigus marmoreus Rong 001(F) strain is used for identifying the specific allelic variation of the Hypsizigus marmoreus Rong 001(F) strain and/or identifying the specificity of the Hypsizigus marmoreus Rong 001(F) strain.

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