Articles tagged with Dna Sequencing
Researchers at Johns Hopkins University have discovered over 230,000 DNA differences across 100 tomato varieties, allowing for rapid identification and evaluation of genetic mutations. This breakthrough enables breeders to create new crops with desirable traits, such as increased size and flavor.
Researchers at NIST developed a benchmark to detect large genetic mutations, which can be challenging to identify. The new method enables laboratories to measure their accuracy in detecting these mutations, reducing false detections and improving disease diagnosis.
Researchers at NC State University developed DORIS, a new approach to DNA data storage that enables users to read or modify files without destroying them. This allows for increased information density and easier scalability.
Researchers have developed a DNA-based method to identify food components and specify their origin. The technique used k-mers for analysing genomic DNA data, allowing for the quick identification of plant or bacterial DNA in food samples.
A new study reveals that most cultural changes in the Near East had no lasting effect on the genetics of local people in Beirut. Only three periods - Iron Age, Alexander the Great's arrival, and Ottoman Empire domination - left a lasting genetic impact.
A new sequencing method has been developed to map the spatial organization of DNA in the cell nucleus, revealing areas prone to mutation and damage. The technique identifies a continuum of increasing activity from the nuclear periphery towards the center, challenging previous assumptions about inactive chromatin's location.
A new study using DNA metabarcoding reveals the dynamics of metacommunities in a threatened boreal wetland, detecting a broader range of biodiversity per sample compared to traditional methods. The study found that patterns of community assembly were nearly random, suggesting a strong role of randomness in the metacommunity.
Researchers at the University of Nottingham have discovered a potential treatment for myotonic dystrophy by inhibiting the CDK12 molecule. The study found that inhibiting this molecule reduces the symptoms of the condition, suggesting a possible route to therapy.
Researchers at IBS South Korea successfully dissected SARS-CoV-2 RNA genome, mapping subgenomic RNAs to viral proteins. The study reveals dozens of unknown RNAs with potential roles in immune evasion.
The Quantum-Si ecosystem enables sensitive and accurate research tools and diagnostics through digital proteomics, transforming the study of proteins on a large scale. The company's platform offers a complete solution for sample preparation, sequencing, and data analysis, reducing costs and increasing accessibility.
A new study analyzes ancient packrat middens for DNA, revealing a mix of bacterial and eukaryotic organisms, including plants and vertebrates. The findings provide valuable insights into past ecosystems and the impact of human-caused climate change.
The University of Utah Health is launching a project that uses rapid whole genome sequencing to identify genetic disorders in newborns, aiming to cut diagnosis time to 72 hours or less. The goal is to personalize treatment and improve outcomes for critically ill infants with genetic-related diseases.
A recent study found that clinical whole exome sequencing at major commercial labs inadequately analyzes more than a quarter of genes, affecting the accuracy of genetic disorder diagnoses. The reanalysis revealed stark inconsistencies in gene coverage across different labs, with some testing only 34% of genes.
A new method called ON-rep-seq enables the precise identification of bacteria using selective, strain-specific fragments of the bacterial genome. This approach reduces analysis time and costs to less than $2 per bacterium, increasing accuracy to over 99%.
Scientists have developed a method to identify all 20 amino acids in proteins using nanopores, a major breakthrough towards protein sequencing. The technology allows for precise differentiation of modified forms of amino acids, potentially identifying hundreds of modifications.
A genetic study of ancient bone samples in Finland discovered separate populations during the Iron Age, influencing modern Finns' gene pool. The study found lineages typical of hunter-gatherers and European farmers coexisted in different regions.
A new portable DNA sequencer has been developed to rapidly diagnose wheat viruses with high accuracy. The technology has been tested on four wheat samples from western Kansas and detected three different viruses, including a new strain. This breakthrough has broad applications for plant disease identification and field diagnostics.
Researchers have developed a new genomic method, CUTseq, that can assess the amount and type of copy number alterations in tumors, helping identify highly heterogeneous and aggressive cancers. The technique is cheaper than existing technologies and can be applied to multiple biopsies or small tissue sections.
Using whole genome sequencing, scientists can pinpoint populations that need an influx of new genes or identify the best pumas to move between populations. This approach may help prevent inbreeding and its consequences, such as health defects.
The All of Us Research Program awards $7 million to HudsonAlpha to evaluate leading-edge DNA sequencing technologies. The project aims to generate genetic data on 6,000 participants, revealing elusive genetic variations associated with rare diseases.
The US Department of Agriculture's Agricultural Research Service has published the first genome of the invasive Spotted Lanternfly, obtained from a single caught-in-the-wild specimen. The genome sequencing was made possible by Pacific Biosciences' new platform that produces 10 times more data from a single run.
Researchers have created a new method for imaging biological molecules in cells or tissue samples using DNA snippets, allowing for the study of molecule abundance and distribution. The 'DNA microscopy' approach enables rapid screening and analysis of specific molecules within larger materials.
The completed brown trout reference genome will enable scientists to identify sub-species and understand the genetic roots of this highly specialised species. This knowledge will facilitate targeted conservation efforts, particularly in light of rapid climatic change.
The SING workshop brings together Indigenous and non-Indigenous scientists to discuss genomic tools and their social and political ramifications. Participants learn about the limitations of genomics research and its applications in health and environmental policy.
A previously unrecognized species of medicinal leech has been discovered in North America, with specimens found in freshwater wetlands from Georgia to New York. The new species, Macrobdella mimicus, is less than 50 miles from the National Museum of Natural History and is closely related to other native leeches.
A novel open-source computational framework promotes affordable and routine NIPT applications in clinics, detecting fetal trisomies and parental chromosome origin from maternal blood samples. The framework incorporates machine learning methods to estimate euploidy or trisomy for each studied chromosome.
Scientists developed a machine-learning method to analyze protein structures and predict pathogenic mutations. This approach helps identify disease-associated amino acid substitutions in membrane proteins, which account for 25-30% of all cellular proteins.
A new study demonstrates dual DNA barcoding improves diagnosis of invasive fungal diseases, enabling faster treatment and reducing morbidity and mortality. The technique uses two specific regions of DNA to identify fungal pathogens, increasing accuracy and speed of diagnosis.
Researchers found high genetic diversity within and between baitfish assemblages from different locations around Bermuda. The study suggests that the island's baitfish species are highly mixed populations with limited gene flow to other regions.
University of Illinois researchers discovered that tiny defects formed during fabrication can be used to direct molecules into membrane pores. Their findings could lead to devices that quickly sequence DNA for personalized medicine, increasing capture throughput by several orders of magnitude.
A study of Finns with their similar DNA identified 26 potentially harmful genetic variations relevant to cardiovascular and metabolic health. These variations are more common in Finland than elsewhere in Europe, making them a valuable resource for understanding disease risk.
A recent study published in Applied and Environmental Microbiology found that genetics has a greater impact on the microbiome of mice than their maternal birth environment. The researchers tested two different inbred laboratory strains of mice and found that the offspring's microbiomes were similar regardless of which parent was black ...
A recent study published in Weed Science has made significant progress in understanding the genetic basis of sex determination in Palmer amaranth and waterhemp. The researchers were able to distinguish between male and female plants with a high degree of accuracy, paving the way for new control strategies.
Researchers at the University of Illinois identified genetic signatures that distinguish male from female waterhemp and Palmer amaranth plants, a crucial step in developing genetic control. The discovery aims to introduce genetically modified male plants that would contain a gene drive to control the damaging weeds.
Scientists have captured atomic-level images of active CRISPR enzyme Cas9, providing new structural information on its mechanism. The images show how the enzyme cuts DNA strands and reveals the importance of domain movement during reaction, which could lead to improved genome-editing tools.
Researchers analyzed Y chromosome sequences of modern Japanese men to estimate ancient human population size around 2,500 years ago. The study revealed a significant decrease in ancestral Jomon DNA before the arrival of the Yayoi people, supporting an actual population decline.
A recent study published in Nature reveals that ancient bones found in a Finnish lake contain DNA from the modern Sámi people, dating back to around 500-700 AD. The discovery contradicts previous theories about local populations and sheds light on the colonization history of Siberia.
Researchers developed DNA Enrichment and Nested Separation (DENSe) techniques to label and retrieve DNA data files, increasing estimated file names from 30,000 to 900 million. The system uses nested primer-binding sequences and molecular tags for efficient data retrieval.
Inbred Isle Royale wolves have fewer harmful genes than expected, with a higher proportion of paired recessive alleles. This discovery has broader implications for conservation efforts, suggesting individuals from smaller populations may be more beneficial due to fewer potentially harmful alleles.
Researchers sequenced DNA of over 2,000 Group A Streptococcus samples from 22 countries to identify common genetic targets for a global vaccine. The study reveals that current vaccine candidates may have limited coverage in low-income areas where Strep A is most prevalent.
Researchers use cutting-edge sequencing technology and microscopy to discover the sequences of all centromeres in the fruit fly Drosophila melanogaster. They found that centromeres contain a high number of transposable elements, including retroelements, which may play a role in centromere function across species.
A new North Carolina State University study found that lionfish in the Atlantic and Pacific regions share genetic similarities, suggesting a population near Taiwan as the source of the invading species. The research also revealed that lionfish in the Atlantic exhibit rapid reproductive rates and voracious predation, devastating native ...
A recent study of ancient DNA from Crusader skeletons confirms they intermingled with local populations, forming families and fighting alongside them. The researchers found that the Crusaders' genetic presence was short-lived, with no lasting impact on Lebanese genetics.
Scientists at the University of Hawaii have developed a technique to measure living coral on reefs by analyzing DNA in small seawater samples. This new method, known as metabarcoding, can track changes in coral reef health and detect rare species.
Scientists discover a simple mechanism that allows prebiotic information-bearing DNA sequences to outcompete shorter molecules, enabling the survival and transmission of genetic information. Templated ligation promotes cooperation among complementary sequences, creating stable majorities through intermolecular assembly and replication.
Researchers constructed a massive family tree using DNA samples from 221 bird specimens, discovering two African species in a distinct new passerine family and five additional proposed families. This study reveals that global temperature changes and continent colonization were not the sole drivers of passerine diversification.
Researchers from Osaka University developed a tiny DNA reader using microscopic probes and an electrical current to locate anticancer drug molecules. The technology successfully identified individual molecules in short DNA strands, pinpointing exact insertion sites of trifluridine.
Researchers estimate 6856 arthropod species in soil samples, adding over 2500 new DNA sequences to GenBank. Traditional field methods combined with DNA sequencing reveal diverse insect and beetle populations on Hauturu Island.
A new sequencing method, TET-assisted pyridine borane sequencing (TAPS), detects chemical modifications to DNA that contribute to cancer progression and resistance to therapy. The method is less damaging and more efficient than bisulfite sequencing, enabling the detection of mutations and structural variations.
Researchers at the Wellcome Sanger Institute and Pacific Biosciences successfully assembled the genetic code of a single Anopheles coluzzii mosquito, opening doors to understanding genetic diversity in insects. The breakthrough reduces DNA needed for genome sequencing by an order of magnitude, enabling studies on previously inaccessibl...
Researchers at Salk Institute mapped the genomes and epigenomes of genetically modified plant lines with high resolution, revealing molecular-level changes when foreign DNA is inserted. This study provides new methods for minimizing potential off-target effects in transgenic plants.
Researchers developed a new concept called Ancient Ancestry Informative Markers (aAIMs) that can accurately identify and classify ancient populations. The tool enables testing of an individual's similarity to ancient people from various regions, providing insights into their primeval origins.
A recent study by WiKim has identified five yeast strains responsible for forming white colonies on the surface of kimchi. The research uses whole-genome sequencing and NGS technology to confirm that these yeasts do not produce toxin-related genes, making them safe for consumption.
A new 'Go Fish' tool confirms marine species presence in water samples within three days, complementing traditional monitoring systems. Experts at the first US National Conference on Marine Environmental DNA discuss the potential of emerging eDNA science to enhance ocean management and inform policy decisions.
New research by University of Alberta biologists reveals the Stone's sheep population is 20% less common than previously estimated. Genetic analysis shows significant overestimation of certain subspecies due to misclassification, leading to a more accurate estimate.
Ancient Andean populations adapted to high-altitude environment with distinct genetic changes, including a co-evolution between the potato and humans. The study suggests that these adaptations allowed them to thrive in extreme conditions.
MSU researchers developed a new course 'Integrative Biology: From DNA to Populations' featuring Avida-ED, a digital evolution software program. This approach allows students to engage with biological concepts in a familiar and interesting context, resulting in increased understanding of evolution-influenced topics.
Researchers at University of Pennsylvania have developed a new method to sequence epigenetic marks on DNA, allowing for more precise detection of disease earlier and with increased precision. The method uses APOBEC DNA deaminases to differentiate between two common epigenetic marks, methylation and hydroxmethylation.
Researchers at IST Austria identified two genes that determine magenta and yellow flower colors in snapdragons, which are separated by a hybrid zone. The study found that selection favored new variants of these genes, making the flowers more attractive to bees, while also creating barriers to gene exchange.
Researchers sequenced 141,431 women's genomes using non-invasive prenatal testing data, identifying patterns in ethnic groups' evolutionary history and novel genetic loci linked to height and BMI. The study provides insights into disease risk and epidemiology in Chinese populations.