Articles tagged with Genome Sequencing
A reference genome for the wild relative of cultivated tomatoes has been developed to improve crop yields and disease resistance. Researchers have also created online tools to facilitate gene discovery and analysis.
A Brazilian patient with a rare genetic disease was treated with breast milk donated by a vaccinated woman, boosting her IgA levels and eliminating the virus. The treatment was successful after a week, with the patient testing negative twice at ten-day intervals.
Researchers analyzed DNA of Demodex folliculorum mites living in human hair follicles, finding unusual body features and behaviors due to their isolated existence. The study suggests these mites may transition from external parasites to internal symbionts as they shed unnecessary genes and cells.
A 1,700-year-old genome study from Korea reveals greater genetic heterogeneity among ancient Gaya confederacy individuals compared to modern Koreans. The findings suggest that the Korean peninsula experienced more genetic diversity in the past, with ancient Koreans intermixing within the region.
Ancient DNA analysis reveals that an epidemic devastated a local community in Kyrgyzstan in 1338 and 1339, linked to the Black Death. The study suggests that the Black Death's ancestor originated in Central Asia, close to Lake Issyk Kul.
Researchers at Cornell University named a new green alga species after poet Amanda Gorman, who inspired them during a challenging year. The discovery was made by accident while studying hornwort plants and contains unique DNA from fungi and bacteria.
Researchers used nanopore sequencing to detect specific genomic disorders in a fraction of the time it takes traditional testing. The study showed that diagnosis of larger chromosomal alterations could be made in one day, while smaller CNVs took two days.
Scientists have analyzed whole genome sequences of 98 wild house mice from across Europe and Asia, revealing a greater genetic diversity than previously thought. The study confirms three primary subspecies and infers the population history, with strong evidence for interbreeding between subspecies in East, Southeast, and South Asia.
A Galapagos giant tortoise species previously believed to be extinct has been confirmed to still exist, thanks to genetic research that sequenced the genome of a single specimen and compared it with living individuals. The study's findings offer hope for the recovery of this species.
A group of researchers discovered a new species of green algae, Gormaniella terricola, in Central New York State. The alga's unique chloroplast genome was found to contain DNA from fungi and bacteria, highlighting the importance of horizontal transfer.
A giant tortoise from the Fernandina Island species, believed extinct for over a century, has been confirmed alive through genetic sequencing. The discovery opens up new questions about its evolutionary relationship to other Galápagos tortoises and provides hope for conservation efforts.
Researchers at the Center for Genomic Regulation (CRG) found that chromatin, a genetic architecture that protects DNA and regulates gene expression, originated in ancient microbes between 1-2 billion years ago. This eukaryotic innovation has been essential for life since its emergence.
The study creates a catalogue of genomic diversity for endangered chimpanzees, allowing researchers to pinpoint the origin of confiscated animals within 100 kilometers. This information can support conservation efforts and combat the illegal trade of chimpanzees.
An international research team has created the largest and most detailed genomic diversity atlas of wild chimpanzees, revealing their evolutionary history and genetic diversity. The study sheds light on demographic past, genetic differentiation, and exchanges between subspecies, providing valuable insights for conservation.
A team of researchers has identified the ancient bird species behind giant prehistoric eggs in Australia, resolving a years-long debate. The study found that the eggs belonged to a unique duck-like line of megafauna known as the 'Demon Ducks of Doom', which was laid by the Genyornis newtoni bird.
A study comparing whole genomes of several mustelids, including the tayra and wolverine, identifies multiple sources of genomic variation contributing to species-specific traits. The research sheds light on how these adaptations evolved in response to different ecological challenges.
Researchers mapped out the natural history of drywood termites, revealing oceanic voyages that accelerated their evolution and confirmed recent dispersals via humans. The study also challenged the common assumption of primitive lifestyles, highlighting the diversity and complexity of termite social behavior.
Researchers from Edith Cowan University, CSIRO, and WEHI have decoded the genome of oats, revealing why they may be a suitable alternative to wheat for those with coeliac disease. The study found that oats contain fewer gluten-like proteins, making them a potentially healthier option.
The oat genome has been fully sequenced, revealing key genes responsible for its health-promoting properties, including beta-glucans that reduce cholesterol and alleviate metabolic diseases. This breakthrough enables targeted breeding for more nutritious and sustainable oats.
A new study has identified genomic modifications in the transgenic papaya 'SunUp', which was developed to resist the papaya ringspot virus. The researchers used advanced sequencing technologies to read long stretches of DNA and found that the insertion did not cause any change in gene expression.
Researchers found a genetic link between long repeated DNA sequences and schizophrenia. The study discovered rare tandem repeat expansions near genes associated with the disorder, contributing to dysfunction at synapses and disrupting gene function.
Researchers identified a region of the mouse genome associated with higher mutation rates, which is linked to a specific gene called Mutyh. This finding supports the theory that genetic differences can affect mutation rates, and may also shed light on cancer susceptibility.
Whole genome sequences of ancient Uruguayan Indigenous people provide a genetic snapshot of populations before European military campaigns decimated them. The results support the theory of separate migrations into South America, contradicting the idea of a single Native American race across North and South America.
Researchers at Karolinska Institutet have mapped the formation of hybrid strains in Trypanosoma cruzi, a parasite causing chronic infection and severe symptoms. These hybrids are more effective at evading the immune system and causing disease, but understanding their formation can help develop new diagnostic and treatment methods.
Researchers at King Abdullah University of Science & Technology (KAUST) have identified a stem rust resistance gene in Aegilops sharonensis and transferred it to common wheat. The new transgenic wheat lines show high levels of resistance to the stem rust pathogen, providing hope for mitigating the devastating effects of climate change.
An international team led by BGI-Research has produced the first spatiotemporal maps of cellular dynamics in mice, Drosophila, zebrafish, and Arabidopsis using Stereo-seq technology. This breakthrough enables scientists to analyze the distribution and placement of molecules and cells in situ and over time.
Researchers studied the genomes of squid, octopus, and cuttlefish to understand how they developed complex behaviors and organs. The studies found that cephalopod genomes are highly rearranged, with novel gene families that contribute to their unique traits, such as large brains and camouflage capabilities.
A new species of dusky salamander has been discovered in the Gulf Coastal Plain of Mississippi and Alabama, increasing knowledge of the region's biodiversity. The species, Desmognathus pascagoula, is similar to another recently discovered species but has distinct morphological, genetic, and geographic characteristics.
Researchers have mapped the connections between DNA and blood proteins in two large populations, providing insights into disease causes and potential treatment targets. The study's findings could shed light on health disparities and help develop new therapies.
A team of researchers at UC Riverside has discovered that a protein complex called CAF-1 controls genome organization to maintain lineage fidelity in blood stem cells. The study found that CAF-1 keeps specific genomic sites compacted and inaccessible to transcription factors, ensuring the expression of lineage-specific genes.
Researchers found that somatic mutations accumulated at a faster rate in Alzheimer's disease patients' brain cells, leading to DNA damage and dysfunction. This discovery provides a window into the molecular events of AD pathogenesis, potentially leading to novel treatments targeting these pathways.
A recent study led by scientists at Albert Einstein College of Medicine suggests that some smokers have robust mechanisms to limit mutations, protecting them from lung cancer. The findings could help identify those with an increased risk for the disease and warrant close monitoring.
Australian researchers have discovered a new neurodevelopmental disorder linked to the tumor suppressor gene FBXW7. The condition causes mild to severe developmental delay, intellectual disability, and other symptoms, with genetic variations in this gene found in 28 individuals from 32 families worldwide.
Researchers have assembled a comprehensive genome of the false clownfish, providing insights into its ecological behavior, evolutionary history and adaptability. The genome comparison with its orange-clownfish cousin reveals unique genes related to neurobiology, affecting their behavior and ecology.
Researchers have discovered 15 genomic loci that either accelerate or decelerate brain aging, offering potential new drug targets to combat Alzheimer's disease and other degenerative brain disorders. The study, led by USC researchers, found overlap with genes involved in depression, schizophrenia, and cognitive functioning.
A new technique called Operational Genomic Units (OGU) allows for improved resolution and simplicity in analyzing microbiome samples. By using individual genomes as basic units, researchers can pinpoint biologically relevant characteristics such as age and sex with greater accuracy.
Researchers have completed the first complete sequence of a human genome, providing new information on genetic variation and its impact on diseases. The study, led by Johns Hopkins University scientists, reveals over a million previously unknown genetic variants.
The new T2T reference genome adds nearly 200 million base pairs of novel DNA sequences, including 99 genes likely to code for proteins. This completes the first truly complete sequence of a human genome, covering each chromosome from end to end with no gaps and unprecedented accuracy.
Scientists have deciphered the helmeted honeyeater's genome and created a genetic map to guide advanced genetic rescue methods. The new tools allow for precise breeding decisions, reducing inbreeding and its negative impact on population health.
A multicenter study found mutations in the SARS-CoV-2 N protein associated with increased viral loads and severe disease symptoms. The changes enabled the virus to hijack host cell translation machinery, leading to a life-threatening cytokine storm.
The Bank of Okinawa has awarded ¥1 million grants to two startups, Genome Miner and Menopause and Beyond, participating in the OIST Innovation Square Startup Accelerator Program. The grants aim to support their entrepreneurial journey and contribute to the development of the local economy.
Dr. Kushani Jayasinghe, a nephrologist and trainee in clinical genetics, received the 2022 Richard King Award for her article on genomic testing in patients with suspected monogenic kidney disease. The award recognizes high-quality research published in Genetics in Medicine by trainees.
Researchers found that fruit flies underwent widespread physical and genomic adaptation within weeks, with changes documented in 60% of their genome. The study's findings suggest a new paradigm for understanding the timescale of evolution, highlighting rapid and dynamic adaptation to environmental conditions.
The African BioGenome Project aims to sequence the genomes of Africa's endemic plants, animals, fungi, and protists. This will build resilience in breeding, sustainable food systems, and biodiversity conservation, aligning with the post-2020 Global Biodiversity Framework and the United Nations Sustainable Development Goals.
Researchers at Rice University developed a new program called Variabel to accurately identify 'low-frequency' variants of the virus that causes COVID-19. By distinguishing true variants from sequencing errors, Variabel enables rapid characterization of within-host variation, which could aid in discovering future mutations.
A study reveals that new bird species arise in lowland habitats before moving higher into mountainous areas, where genetic differences accumulate. The research suggests that climate fluctuations, particularly during the Pleistocene era, contributed to the evolution of these high-altitude populations.
A team of paleogeneticists successfully sequenced the genome of the extinct Christmas Island rat, but found that key genes related to olfaction were missing. The study reveals the challenges and limitations of de-extinction across all species, highlighting the need for a more nuanced approach.
A new DNA test has been developed to identify a range of hard-to-diagnose neurological and neuromuscular genetic diseases quicker and more accurately than existing tests. The test uses Nanopore sequencing technology to scan for abnormally long repeats within patients' genes, which are the hallmarks of disease.
Researchers highlight recent advancements in pear genome sequencing, genetic transformation, and breeding technologies. The study provides a roadmap for future research, focusing on genome development, resequencing, and integrated omics technologies.
Scientists at Karolinska Institutet have developed a new high-precision tool to identify the function of noncoding DNA sequences, which may eventually contribute to the development of targeted drugs. The study reveals that these noncoding parts of patients' DNA are linked to genetic changes in diseases.
A study found that a subtype of Newcastle disease virus caused the deaths of dozens of pigeons in São Paulo City. The researchers sequenced the viral genome and identified tissue wounds to determine the cause of death, revealing subgenotype VI.2.1.2 as the responsible pathogen. The risk to humans and poultry is considered low.
Researchers have sequenced the genome of Candida glabrata, a deadly yeast infection that's resistant to antifungal drugs. The study found genes associated with virulence and drug resistance, shedding light on how the pathogen spreads and evolves.
A study by researchers at the University of Pennsylvania found that a domestic cat was infected with the SARS-CoV-2 delta variant, but without significant genetic changes. This discovery highlights the virus's ability to infect a wide range of hosts and raises questions about its evolution in different species.
A team of researchers from the University of Malta identified three high-risk gene variants associated with familial osteoporosis through whole genome sequencing. These variants were tested in a large case-control collection and found to be linked to bone mass and reduced protein function.
A genomic study found that England's 14-day quarantine measures for travelers helped prevent the spread of SARS-CoV-2, particularly among 16-20 year olds. The study analyzed contact-tracing data and genome sequences to track the spread of genomes from imported cases.
The Colorado potato beetle has evolved rapid resistance to insecticides by leveraging its existing genetic diversity, allowing different populations to quickly adapt and overcome new chemicals. This wealth of diversity will likely make the pest difficult to control in the future.
Researchers used Hi-C sequencing to identify three-dimensional chromosome structures in 11 carnivore species, showing conserved chromatin structures across families despite millions of years of evolution. This approach could facilitate identifying related genes and placing them in context.
A new bacterial strain, Noda2021, belonging to Candidatus phylum Dependentiae has been isolated and sequenced, revealing its genetic material and potential ecological significance. This discovery sheds light on the diversity of microorganisms in Japan's microbiological hotspots.
Researchers at UC Davis MIND Institute found a novel gene linked to autism spectrum disorder in newborns. The study analyzed DNA methylation signatures in the placenta, which reflected fetal brain development and early autism diagnosis.
Scientists found a protective gene that counters a deleterious mutation causing atrial septal defects, allowing some people with the mutation to thrive. The discovery provides valuable clinical information for families affected by congenital heart disease.