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73 results about "Genomewide association" patented technology

Large-scale genetic typing method based on SLAF-seq (Specific-Locus Amplified Fragment Sequencing) technology

The invention provides a method for carrying out large-scale gene typing based on an n SLAF-seq (Specific-Locus Amplified Fragment Sequencing) technology. Complexity of the genome is reduced by utilizing the SLAF-seq technology, and genetic typing is carried out on large-scale products. High-throughput sequencing is carried out on the genome, marker-developing, genetic map drawing and whole genome association analyzing are carried out on the samples by utilizing the technology. Compared with the conventional method, the large-scale genetic typing method disclosed by the invention has the advantages that the throughput is greatly improved, and the cost is greatly reduced. The method is mainly applied to marker-developing, genetic map drawing and whole genome association analyzing.
Owner:BIOMARKER TECH

Method for developing waxy1-gene internal molecular markers on basis of association analysis and KASP

The invention discloses a method for developing waxy1-gene internal molecule markers on the basis of association analysis and KASP. One indel and two snap markers located in waxy1 gene and remarkablyassociated with content of amylase are found out mainly through genome-wide association study and candidate gene association analysis techniques; the detected indel is marked as a major mutant type ofglutinous maize in China; glutinous maize materials can be identified through agarose gel by the markers developed on the basis of the indel, and convenience and rapidness is achieved as compared with that of original polyacrylamide gel identification; meanwhile, paired linkage disequilibrium test of 59 parts of waxy1-gene sequence regions of maize hybrid line materials is performed, close linkage of the indel marker and the two snp markers is tested, primers of the two snps are developed on the basis of the KASP technology, the glutinous maize materials can be identified rapidly, efficientlyand accurately, and molecular breeding of glutinous maize is facilitated.
Owner:SHANGHAI JIAO TONG UNIV

Efficient high-accuracy whole-genome selection method capable of performing parallel operation

The invention relates to the technical field of animal and plant breeding and human disease prediction, and provides an efficient high-accuracy whole-genome selection method capable of performing parallel operation. The method comprises the following steps: firstly, reading an original genotype file and a phenotype file, constructing a new genotype file and a new phenotype file, and calculating agenetic relationship matrix of all individuals; then, extracting all individuals in the new phenotypic file as a reference group, and extracting all individuals without phenotypic data in the originalgenotypic file as a prediction group; carrying out whole genome association analysis by utilizing the reference group data, and extracting result characteristics of the whole genome association analysis; constructing a model library with specific characters, sequentially optimizing an optimal fixed effect and an optimal random effect by adopting a cross validation strategy, and selecting an optimal prediction model from the model library; and finally, calculating genome estimated breeding values of the prediction group by utilizing the optimal prediction model. The method can quickly, accurately and stably predict individual genome breeding values, and thus the accuracy and efficiency of whole genome selection are improved.
Owner:武汉影子基因科技有限公司

Method for breeding high-reproductive-performance breeding rabbits through SNP assistant selection breeding technology

The invention belongs to the technical field of livestock breeding and relates to a method for breeding high-reproductive-performance breeding rabbits based on SNP. The method comprises the following steps that firstly, resource group establishing and character measuring are conducted, wherein 1, resource group establishing is conducted, and 2, character measuring is conducted; secondly, target SNP selecting and whole genome correlation analyzing are conducted, wherein 1, genome SNP finding and whole genome SNP chip customizing are conducted, 2, whole genome correlation analyzing and verifying are conducted, and 3, SNP gathering is conducted; thirdly, a BLUP method is conducted, wherein a marginal effect value is calculated based on the principles of economics, and the animal model BLUP method is used for studying rabbit breeding value comprehensive selecting indexes; fourthly, a new M-BLUP rabbit breeding method is conducted, wherein the genetic effect of significant SNP locuses is estimated, molecule marking and BLUP are combined, and the new M-BLUP rabbit breeding method is established; fifthly, the new M-BLUP rabbit breeding method is used for breeding the high-reproductive-performance rabbits. The SNP assistant selection breeding method is adopted, special strains can be bred, and a high-reproductive-performance meat rabbit matched system can be established.
Owner:JILIN KANGDA FOOD CO LTD +1

Method for discovering pharmacogenomic biomarkers

The present invention relates to a method of discovering pharmacogenomic biomarkers that are correlated with varied individual responses (efficacy, adverse effect, and other end points) to therapeutic agents. The present invention provides a mean to utilize archived clinical samples to perform genome-wide association study in order to identify novel pharmacogenomic biomarkers. The newly discovered biomarkers can then be developed into companion diagnostic tests which can help to predict drug responses and apply drugs only to those who will be benefited, or exclude those who might have adverse effects, by the treatment.
Owner:DENOVO BIOPHARMA HANGZHOU LTD

Molecular marker influencing feed conversion ratio character of pig and application

The invention discloses a molecular marker influencing the feed conversion ratio character of a pig and application, and belongs to the technical field of marker-assisted selection technologies and genetic breeding. The molecular marker is obtained through the genome-wide association study (GWAS), the nucleotide sequence of the molecular marker is shown in SEQ ID NO:1, the C>A nucleotide single-base mutation (named as g.690C>A) is located at the 690bpth position of the genomic sequence of the pig, and the feed conversion ratio character of the pig is remarkably influenced through mutation. The invention discloses preparation and application of the molecular marker.
Owner:SOUTH CHINA AGRI UNIV

Method for improving aquatic animal whole-genome selective breeding efficiency

The invention discloses a whole-genome selective breeding method suitable for aquatic animals. Specifically, high-density SNP typing is carried out on individuals of a breeding basic group or a core group; the phenotypic value of the target character is determined; whole-genome association analysis (GWAS) is carried out by utilizing the SNP typing data and the phenotypic data to obtain a significance P value of each SNP marker; the marks are sorted from low to high according to P values; according to different traits, different marker number combinations sorted in the top are selected according to the P values, analysis is performed by adopting methods such as GBLUP, Bayes B and the like, the prediction accuracy of the different marker numbers selected according to the P values is evaluated through cross validation, and finally, the marker combination with the highest prediction accuracy is determined. SNP typing is conducted on the candidate population or the next-generation breedingpopulation through the screened optimal marker combination, breeding value prediction is conducted on the candidate population or the next-generation breeding population through adoption of GBLUP or BayesB or ssGBLUP or other methods, and therefore, the prediction accuracy can be remarkably improved.
Owner:INST OF OCEANOLOGY - CHINESE ACAD OF SCI

Method for effectively anchoring candidate gene region of peanut quantitative traits

The invention relates to the field of biotechnology, and in particular to a method for effectively anchoring a candidate gene region of a quantitative trait. The method is co-localized with a genome-wide association study and a quantitative trait localization method to achieve efficient anchoring of the quantitative trait candidate gene regions. The method achieves effective anchoring of the candidate gene region of the peanut quantitative trait by co-localization with the genome-wide association study and the quantitative trait localization. The method is exemplified by quantitative granule weight, firstly, through a simplified genome sequencing technology, the genome-wide SNP marker development of 165 cultivar peanut core collections in China is carried out; based on a principle of linkage disequilibrium, combined with peanut 100-fruit weight and 100-kernel weight breeding value, the related gene regions related to peanut weight traits are associated; in the previous reports, the QTLmapping results of the grain weight traits are converted to the corresponding genomic physical locations, the co-localization region of the two methods can be obtained, and the method can effectivelyand accurately realize the localization of the genome-wide particle weight-related trait genes.
Owner:SHANDONG PEANUT RES INST

Gene recognition method based on empirical Bayesian and Mendel randomization fusion

The invention relates to a gene recognition method based on empirical Bayesian and Mendel randomization fusion. The method comprises the following steps: analyzing whole genome association analysis data by adopting empirical Bayesian meta-information to obtain an analysis result; correcting a statistical value of each SNP in the whole genome based on comprehensive hierarchical meta-information analysis of empirical Bayesian; integrating the whole genome association analysis data based on the Mendel randomization with the eQTL data and the mQTL data respectively, and obtaining a gene recognition result according to the overlapping part of the integration results of the whole genome association analysis data based on the Mendel randomization integrating with the eQTL data and the mQTL data.According to the method, the recognition speed of AD related genes can be greatly increased, existing data are fully utilized and the recognition speed of disease related genes is increased, and the research and development cost is saved; and the calculation result can screen out a great part of genes, so that a valuable research range is provided for subsequent biological experiments.
Owner:HARBIN INST OF TECH

Method for identifying golden silk yak variety by using MC1R gene mononucleotide genetic marker

The invention discloses a method for identifying a golden silk yak variety by using an MC1R gene mononucleotide genetic marker. According to the invention, two methods of whole-genome association analysis and whole-genome selective clearance signal calculation are utilized to analyze the whole-genome SNP of the golden-hair Yuyak, and finally a specific mutation which enables MC1R gene codons to terminate in advance on the 20# chromosome of the Yuyak is identified, so that a basis is provided for variety identification of Yuyak. Meanwhile, according to the SNP site where the mutation is located, molecular marker-assisted selective breeding can be carried out on the golden hair color character of the Yuyak on the DNA level, so that a golden yak population with excellent genetic resources is rapidly established.
Owner:NORTHWEST A & F UNIV
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