43 results about "Chromosome Structures" patented technology

The invention discloses a task decoupling-based multi-robot collaboration welding path generation method. The method includes the following steps that: first step, based on a to-be-welded workpiece model, a chord tolerance and minimum step-combined method is adopted to perform discretization processing on welding seams through non-equidistant point sampling, so that space curve welding seam features can be extracted; second step, a multi-robot cooperative welding task planning model is established; third step, a multi-operator multi-chromosome structured improved genetic algorithm is adopted to distribute multi-robot welding tasks; and fourth step, a motion closed chain-based multi-robot master-slave type collaboration motion model is established, so that multi-robot cooperation paths under tight coupling and loose coupling are generated. According to the method of the invention, the unified multi-robot cooperation welding model is established according to the coupling relations of multiple master-slave robots, and therefore, task planning efficiency of multi-robot cooperation welding can be effectively improved.

The systems and methods may include receiving an initial population of parent chromosome data structures, where each parent chromosome data structure provides a plurality of genes; selecting pairs of parent chromosome data structures; applying at least one evolutionary operator to the genes of the selected pairs to generate a plurality of child chromosome data structures; allocating, the generated plurality of child chromosome structures to a plurality slave processors, where each slave processor evaluates one or more of the plurality of child chromosome data structures and generates respective objective function values; receiving objective function values for a portion of the plurality of allocated child chromosome data structures; merging the parent chromosome data structures with the received portion of the child chromosome data structures for which objective function values have been received; and identifying a portion of the merged set of chromosome data structures as an elite set of chromosome data structures.

The invention discloses a chromosome sorting method based on stripe recognition, and belongs to the technical field of chromosome image processing. According to an existing chromosome sequencing method, due to the fact that manual recognition is prone to interference, selection and arrangement accuracy is low, and structural comparison of doctors is affected. The method comprises the following steps: step 1, obtaining a chromosome karyotype diagram; step 2, carrying out chromosome cutting on the karyotype diagram to obtain a plurality of chromosome images, and identifying chromosome types; 3,extracting a plurality of images of chromosomes of the same number, and identifying chromosome stripe types based on an intelligent algorithm model; and step 4, sorting the plurality of divided chromosome images according to the chromosome stripe type changes of the chromosome images. The strip types of the chromosome images can be predicted, the chromosome strip number can be accurately recognized, reasonable sorting is performed according to the chromosome strip number, a doctor can conveniently observe the chromosome structure, the burden of the doctor can be effectively reduced, and time and labor are saved.

The invention provides a method for determining chromosome structure variation signal intensity and insert fragment length distribution characteristics of a sample, and application thereof. Specifically, the invention relates to a method for determining a sample source. The method comprises the following steps: (1) comparing sequencing read data of chromosomes in a sample with a reference genome,and determining a low-quality comparison rate and a high-quality comparison rate of the sequencing read data of the chromosomes of the sample; (2) determining the structural variation proportion of the chromosomes of the sample, the content of mitochondrial DNA and the proportion of an insert fragment with a predetermined length based on reads corresponding to the high-quality comparison rate; (3)determining the probability of sample sources based on a predetermined tumor prediction model, the structural variation proportion of the chromosomes obtained in the step (2), the content of the mitochondrial DNA and the proportion of the insert fragment with the predetermined length; and (4) determining the source of the sample based on the probability of the sample source.

The invention provides a method for determining an individual chromosome structure abnormity. The method includes the following steps: (1) determining first candidate chromosome structure abnormity types of an individual by using at least one of karyotyping and microarray chip analysis to obtain a first candidate chromosome abnormality type set; (2) performing whole genome sequencing on tissue samples of the individual and preforming first data analysis on obtained sequencing results to obtain a second candidate chromosome abnormality type set; (3) performing whole genome sequencing on singlecell samples of the individual and preforming second data analysis on obtained sequencing results to obtain a third candidate chromosome abnormality type set; and (4) determining a final chromosome structure abnormity type of the individual based on the first candidate chromosome abnormality type set, the second candidate chromosome abnormality type set and the third candidate chromosome abnormality type set.

The invention relates to the field of molecular biology, in particular to a saccharomyces cerevisiae mating type conversion method. According to the saccharomyces cerevisiae mating type conversion method, a Cas9 protein is utilized to produce a double-strand break at an MAT locus, the double-strand break is repaired by an exogenous introduced MAT fragment for conversion of saccharomyces cerevisiae mating types. The saccharomyces cerevisiae mating type conversion method can efficiently and quickly convert saccharomyces cerevisiae haploid mating types and does not rely on saccharomyces cerevisiae chromosome structures HML alpha and HMRa itself, a diploid saccharomyces cerevisiae stage is omitted, induction and other treatment conducted on saccharomyces cerevisiae strains to be converted are not needed, anti-mating type saccharomyces cerevisiae strains are directly obtained, and an experiment period is short.

The present invention relates to a method for analyzing chromosomes by preparing a chromosome preparation, measuring at least one interference property of the chromosome preparation and characterizing at least one chromosome structure by way of the interference property. Also, the invention relates to the use of a near field microscope for analyzing unstained chromosomes.

The present invention relates to systems and methods for measuring chromosome structure and gene expression. In one embodiment, the present invention includes an assay for determining the spatial organization of gene expression in the nucleus. The present invention also includes a method based on fluorescence in situ hybridization (FISH) that simultaneously yields information on the physical position and expression of individual genes. By lighting up a large number of targets on a particular chromosome using a bar-coding scheme, the large scale structure of an entire chromosome can be determined.

The invention belongs to the field of plant genetic engineering and molecular biology, particularly relates to an identification method for identifying whether the filial generation has white tomato fruits or not, specific primers used by the method and application of the specific primers and the method, and provides a chromosome structure variation (SV) molecular marker related to tomato fruit color. The molecular marker utilizes the 208kb inversion, at chromosome 10, of a white-fruit mutant, and the physical position of the inversion is located from the 62736140th base of chromosome 10 to the 62527986th base of chromosome 10. The two pairs specific primers can be used to identify whether the tomato filial generation has white fruits or not and whether the tomato filial generation is in a heterozygosis state or not. The method uses the molecular marker and the specific primers to identify whether the tomato filial generation has white fruits. By the molecular marker, the specific primers and the method, the white-fruit tomato materials can be fast selected, breeding cycle can be shortened, and breeding efficiency can be increased.

The invention discloses a porcine endometrium epithelial cell line susceptible to PRRSV and a construction method of the cell line. The porcine endometrium epithelial cell line is obtained by taking porcine endometrium epithelial cells as host cells, transfecting lentivirus expression plasmids with SV40T antigen genes, and performing Puromycin drug screening and cell expansion culture. The porcineendometrial epithelial cell line has the function of infinite passage, can maintain the characteristics of the porcine endometrial epithelial cells, can maintain normal karyotype in the passage process, and does not have changes in chromosome structure and number; and moreover, the porcine endometrial epithelial cell line is sensitive to PRRSV virus, and can be used for the passage of PRRSV and related research.

The invention discloses a method for automatically generating a Bug repair plan and a Bug repair method, belonging to the field of computer software engineering. The method for automatically generating the Bug repair plan comprises the following steps: 1) using a resource modeling module to extract the attribute information of an input Bug report set; 2) using the resource modeling module to extract the attribute information of stored human resources; 3) using a task scheduling module to acquire a candidate human resource set required by each Bug repair activity in accordance with the extracted attribute information; 4) configuring a binary-system chromosome structure which can be identified by a genetic algorithm, wherein the binary-system chromosome structure comprises candidate resources of the repair activities and executed priority of the repair activities; and 5) using the task scheduling module to optimize the binary-system chromosome structure by the genetic algorithm to obtain the optimal repair plan of the input Bug report set. Through the invention, the accuracy of configuring the human resources is improved, the dependence on subjective consciousness of the human in the planning process is reduced, and the utilization rate of the human resources is improved.

The invention relates to a chromosome structure variation identification method taking a breakpoint as a center. Specifically, the invention relates to a computer-implemented method for identifying chromosome structural variation by taking a breakpoint as a center. The invention also relates to a computer system or device for implementing the method, and a computer readable medium storing a computer program capable of implementing the method.

The invention discloses a method for displaying centromeres and short arms of large yellow croaker, and belongs to the field of molecular cytogenetics. A molecular marker is a segment of a 28S rDNA sequence cloned from human saliva, and is processed to prepare a probe (named as H-P3K), and the probe is crossed with metaphase chromosomes of Larimichthys crocea to obtain a positive signal. The positive signal in the centromeres and the short arms of every metaphase chromosome can be detected when FISH of the Larimichthys crocea chromosomes is carried out by the probe, the short arm signal intensity of one chromosome is weaker than the centromere signal intensity of the same chromosome, and the centromere signal intensities of different chromosomes are different. The method is used for determining the position of the centromere, analyzing the chromosome karyotype and researching the chromosome structure; and the positive signal can be used as a chromosome identifying and pairing marker.

The invention discloses a method for detecting fetal chromosome balance structure variation through pregnant woman peripheral blood free DNA. The method comprises construction of a core family haplotype model and fetal structure variation detection. The method comprises the following steps: collecting chromosome structure rearrangement variation family carrying Fuffles, carrying out SNP (Single Nucleotide Polymorphism) genotyping on the family, defining haplotypes of structure rearrangement chromosomes and structure normal chromosomes, and constructing a whole genome haplotype model. Free DNA of peripheral blood of a pregnant woman is captured and sequenced, the genotype and haplotype of a fetus in the free DNA are calculated and analyzed according to a hidden Markov model, and embryo chromosome structure rearrangement is predicted by analyzing whether the fetus carries the haplotype near a structure rearrangement chromosome breaking point area or not. According to the invention, detection of fetal balance chromosome structure abnormity through the maternal peripheral blood cfDNA is provided for the first time, and important guidance is provided for prevention and diagnosis of chromosome diseases.

The invention provides an efficient sugarcane or sugarcane related species stem tip chromosome flaking method, and belongs to the technical field of cell biology. The invention provides an efficient sugarcane stem tip chromosome flaking method aiming at solving the problems that sugarcane chromosomes are large in number and small in form and ideal division phase metaphase cells are difficult to obtain through root tip flaking. Chromosome flaking is carried out by utilizing stem tip meristematic region tissues of sugarcane and sugarcane related species in a vigorous growth period, the method has the advantages of convenient material taking, large meristematic area tissue sample size, vigorous division, many metaphase cells and clear and dispersed chromosome structure, and the technical keypoints of material selection, pretreatment, fixation, dissociation dyeing, flaking and chromosome morphology microscopic observation are disclosed. The method is simple and convenient, accurate and reliable in result, good in repeatability, easy to operate and short in experiment period and improves the sugarcane chromosome genome analysis efficiency. Technical support is provided for sugarcane chromosome karyotype research, germplasm resource classification identification and protection utilization.

The invention relates to a novel method for identifying homologous recombination deficiency and application thereof. More particularly, the present invention relates to a characteristic genome recombination fingerprint which is related to hHRD type homologous recombination repair deficiency and is resolved by using high throughput genome re-sequencing, bioinformatics analysis and statistical correlation analysis. The characteristic hHRD recombination fingerprint is caused by the functional deficiency of a specific homologous recombination repair mechanism (namely CRL4WDR70-H2B mono-ubiquitination pathway), and comprises the total frequency of genome recombination in a single sample, the composition of chromosome structure variation types and site-specific copy number variation. The recombinant fingerprint is used for identifying infectious diseases or tumors with the characteristic mutant fingerprint, and is used for guiding targeted drug treatment of PARP inhibitors. The invention relates to the method and application thereof for diseases including but not limited to breast cancer, ovarian cancer, endometrial (like) cancer, ovarian clear cell cancer, prostate cancer, pancreatic cancer, skin cancer and gastric cancer with such characteristics, as well as hepatitis B virus infection or related liver fibrosis cirrhosis, liver cancer and cholangiocarcinoma.

The invention discloses a DNA (desoxyribonucleic acid) complex structure variation diagnosis method. 16 chromosome structure variation types are designed, and a corresponding judgment model is designed by aiming at each variation type. Comparison information is directly obtained in a sequencing data comparison file. Compared with the prior art, the method omits sequence re-splicing and re-comparing parts, DNA complex structure variation detection can be quickly finished, and time cost is saved. Meanwhile, since information required for deducing the variation type is fully obtained in the comparison, the problem that re-comparison information can not be completely obtained and wrong information is obtained in a traditional process can be avoided, and chromosome structure variation detectionaccuracy is improved.

The embodiment of the invention provides a cancer genome Hi-C data simulation method and device and electronic equipment, and relates to the technical field of genomics. According to the method, a specified variation mode can be adopted to simulate chromosome structure variation of a cancer genome and the interaction frequency matrix and the gene information of the reference enzyme digestion fragment are taken as templates; the simulated Hi-C data of the cancer genome is obtained in combination with the chromosome structure variation characteristics, various variation conditions of the chromosome are simulated, and the interaction characteristics of different positions of the cancer genome can be reflected, so that the accuracy of simulating the Hi-C data of the cancer genome is improved.

The invention provides a chromosome structure anomaly detection method and device based on deep learning. The detection method comprises the following steps: acquiring chromosome image data of a to-be-diagnosed user; according to the chromosome image data, obtaining a feature matrix of each chromosome through monomer sequence data, type data and stripe number data of sister dyeing monomers of each chromosome; obtaining a difference matrix representing the difference between the homologous chromosome pairs based on the two feature matrixes of the homologous chromosomes; and at least based on the difference matrix of the homologous chromosome pairs of various types in the at least one cell, judging whether the chromosome of the type of the user to be diagnosed has structural abnormality or not. According to the method, the chromosomes are represented through the feature matrix, and the difference between the homologous chromosome pairs is represented through the difference matrix, so that whether the chromosome structure abnormality exists in the user or not can be judged according to the difference matrix through deep learning, and the screening efficiency of the chromosome structure abnormality can be greatly improved.

The invention discloses a method for simultaneously identifying embryo chromosome structure abnormality and pathogenic gene carrying state. The present invention is in the field of genetic diagnosis and human assisted reproduction. On the basis of a family whole genome haplotype analysis model, a comprehensive general technical method is constructed, the method can detect the pathogenic gene of the embryo only through one-time detection, and also can detect the chromosome aneuploid and chromosome structure abnormality of the embryo. The method provides guidance for accurate embryo diagnosis of genetic illness patients, and has important clinical significance.

The invention relates to a method for early identification of cultivated peach fruit shape based on PCR technology. The PCR detection of the present invention uses 4 pairs of primers, including 1 pair of primers (P1) for identifying INV56F (Flat), and 3 pairs of primers (P2/3/4) for identifying INV56R (Round). The identification method is to use the peach genomic DNA to be tested as a template, first use P1 and P2 to amplify respectively, and detect the amplified products. If two specific amplification bands of 1391bp and 705bp are obtained, the fruit shape is flat; if only If there is a 705bp specific amplification band, the fruit shape is round; if no 705bp band is obtained, continue to amplify with the P3 primer pair, if a 981bp specific amplification product band is obtained, the fruit shape is round, otherwise Continue to amplify with the P4 primer; if a 651bp specific amplification product band is obtained, the fruit shape is round, otherwise the fruit shape cannot be judged temporarily. The method has high primer specificity, and the setting of control primers can effectively prevent the occurrence of false negatives, and has the characteristics of simple operation, rapid identification, and accurate results.