Articles tagged with Genome Sequencing
A new virus has been discovered in the waters of Oahu, Hawaii, which infects common marine algae and contains the largest genome ever sequenced for a viral infection. The virus, named TetV-1, appears to have picked up genes from its host, allowing it to survive in low-oxygen conditions.
Researchers studying social defeat in broad-horned flour beetles may uncover insights into combat-induced PTSD. A UTA graduate student hopes her research could shed light on the molecular mechanisms behind changes in behavior, potentially leading to new treatments for post-traumatic stress disorders.
The study found that the Tsimshian population's genetic diversity recovered after a collapse, with intermarriage increasing genetic diversity in some individuals. This contradicts previous notions of Native American populations expanding until European colonization.
Researchers at Osaka University identified unique genetic traits that evolved rapidly in Japanese populations over the last few thousand years. The study found evolutionary changes related to alcohol metabolism, glucose, and lipid processing.
A new study casts doubt on a leading theory for bdelloid rotifers' evolution, suggesting DNA repair following desiccation may not be key to their success. The researchers found no evidence of the predicted differences between species that can and cannot survive desiccation.
Researchers in China have engineered a Chinese shrub to produce high levels of artemisinin, a potent antimalarial compound. The study's findings provide new insights into the metabolic pathway involved in artemisinin biosynthesis and offer a potential solution to address global malaria-related deaths.
The Earth BioGenome Project is a 10-year scientific grand challenge to document life on Earth. The project's challenges include international coordination and governance, economic benefits, and biodiversity conservation.
New sequencing technologies and image analysis techniques enable novel solutions to phylogenetics challenges, providing insights into plant genomes and evolution. The special issue highlights cutting-edge approaches for exploring the plant family tree.
Researchers discovered that sweet potatoes originated over 800,000 years ago in the Americas, challenging the long-held theory of pre-Columbian contacts between Polynesia and the American continent. The findings suggest that humans did not introduce sweet potatoes to Polynesia but rather allowed them to cross the ocean naturally.
Scientists successfully assembled and annotated the genome of California Yellowtail fish, a high-value species in the sashimi industry. The study improves understanding of sex determination and provides insights into developing more palatable farmed fish and optimizing aquaculture practices.
Researchers found that satellite DNA, once thought to be 'junk,' is essential for holding the genome together and ensuring cell survival. This conserved function is critical for chromosomes to bundle correctly inside the nucleus.
Researchers aim to develop an optimized cell-free platform to speed up synthetic biology design-build-test-analyze cycles, enabling faster characterization of novel and improved pathways. The proposed technology leverages advances in DNA synthesis, cell-free biosynthesis capabilities, and genome engineering tools.
The genome sequencing of the Atacama skeleton has uncovered novel mutations linked to dysplasia, highlighting the need for improved guidelines in publishing historical and ancient DNA samples. The study's publication in Genome Research has raised concerns about ethical standards and prompted discussions on journal policies.
A 6-inch human skeleton discovered in Chile had high-quality DNA suitable for modern sequencing technology, revealing insights into its ancestry and phenotype. Multiple genetic mutations linked to diseases such as dwarfism and musculoskeletal abnormalities were found.
The MedSeq Project analyzed costs six months after genetic information was returned to physicians and their patients. Sequencing did identify health-relevant genetic information, but downstream costs were similar between sequenced and unsequenced patients.
A new study reveals that pups with less maternal care have more repeated genetic sequences in their neurons. The researchers found a link between maternal care and transposon replication in the hippocampus, but not in other brain regions or organs.
Researchers sequenced the genomes of 57 platypuses across Eastern Australia and Tasmania, establishing a family history and kinship in unprecedented detail. The study provides insights into population structure, diversity, and evolutionary forces at work, shedding light on the conservation challenges facing this unique species.
The Hispaniolan solenodon's genome sequence reveals it survived the dinosaurs and provides crucial insights for conservation. The data supports subspecies split within the population, requiring independent breeding strategies to ensure their survival.
A genomic survey of living and extinct elephants reveals recurring genetic admixture, suggesting a more complex evolutionary history. The study confirms the distinctness of African savanna and forest elephants, while also uncovering signs of admixture among other elephant family members.
The study provides a comprehensive genomic portrait of elephants, including extinct mammoths and mastodons. Gene flow between species was more common than previously thought, contradicting simple tree-like relationships.
An ASU study has shed light on the biodiversity of anole lizard family trees by comparing their genomes with those of other animals. The research found that genes involved in interbrain development, color vision, and hormones may contribute to species boundaries.
A study of 20 ancient horses found they are direct ancestors of Przewalski's horses, contrary to previous thought. Their return to a wild state led to changes such as the loss of leopard spotting and night blindness.
A new study has found that Przewalski's horses are not the last wild horse species, but rather feral, descended from the earliest-known instance of horse domestication by the Botai people in northern Kazakhstan. The research also reveals that modern domesticated horses did not descend from these early domesticated horses.
Researchers sequenced an ancient Taino individual's genome, finding a strong genetic connection to present-day Arawakan speakers from northern South America. The study suggests the Taino people originated from this ancestral population, illuminating early Caribbean peopling and European colonization impacts.
The Amazon molly's unique reproductive method has allowed it to thrive for millennia, defying expectations that asexual reproduction would lead to extinction. The fish's hybrid genome and high genetic diversity have enabled it to adapt to environmental changes without accumulating harmful mutations.
A Wits University PhD student has solved part of the evolutionary puzzle of multicellularity by studying the genomic sequence of a four-celled algae. The research identified the ubiquitin proteasomal pathway as a process controlling cell division, which played a key role in the evolution of multicellularity.
Researchers discover piRNAs, small RNA molecules that identify and silence foreign genetic sequences in cells. The study sheds light on a basic mechanism affecting fertility in animals.
A comparative genome study between two corals, Stylophora pistillata and Acropora digitifera, reveals significant genetic disparities. The findings suggest that corals exhibit high levels of genetic variation within the same species, affecting their resilience to climate change.
Scientists have isolated a new botulinum neurotoxin, BoNT/En, from a strain of Enterococcus, sparking concern over the potential for multi-drug resistance. The toxin, found in cow feces, was unexpectedly discovered to resemble the toxin that causes botulism, with experts warning of its potentially deadly consequences.
The study provides a complete genome assembly of the planarian flatworm Schmidtea mediterranea, revealing novel giant repeat elements, new genes, and the absence of certain essential genes. The discovery has potential implications for understanding regeneration research and stem cell biology.
A team of researchers sequenced and annotated the genomes of six Aspergillus species, identifying biosynthetic gene clusters for secondary metabolites of interest. The study highlights a new analysis method that pinpointed candidate genes for diverse compounds, providing potential tools for improving biofuel production.
A new study reveals that DNA mismatch repair (MMR) preferentially protects genes from mutations, rather than non-genic regions of the genome. The research, led by Prof. Nicholas Harberd at the University of Oxford, has important implications for understanding cancer development and human health.
Researchers sequenced ancient HBV genome from 16th-century mummified child, confirming pathogen's long history in humans. The findings suggest the evolution of this virus is complex and has changed little over 450 years.
Research on the mangrove killifish found a remarkable amount of genetic diversity across different lineages, contradicting expectations. The fish's ability to fertilize itself and its eggs suggests a complex behavior that allows it to adapt to changing environments.
Researchers used genetic barcoding to identify and quantify fish larvae in a coral reef ecosystem, revealing species distribution and dispersal patterns. The study solved several mysteries, including the invasion of a puffer fish into the Mediterranean, and provided new insights into the ecology of the reefs.
The study reveals that the Sumatran rhinoceros population declined significantly around the middle of the Pleistocene, approximately one million years ago, due to climate change and habitat loss. The effective population size was reduced from an estimated 57,800 individuals to just 700 by 9,000 years ago.
Researchers developed a new tool to sequence chloroplast DNA from hundreds of plants at once, allowing for accurate tracking of seed dispersal across landscapes. This method has significantly reduced the costs of genetic studies, enabling biologists to investigate plant populations and their movements.
Researchers charted the lineage of potatoes to understand how they were domesticated and how their DNA evolved. They identified genes targeted during domestication that control variance for agricultural traits, vital to food security.
A new study sheds light on the source and spread of the white-nose syndrome fungus, which has wiped out millions of bats in North America. Researchers found that the fungus was introduced to North America from Europe and has since spread rapidly due to the effective dispersal abilities of bats.
A research team has quantified blind spots in protein function, revealing that 30% of proteins with unknown functions are enzymes. This discovery has significant implications for understanding rare genetic diseases and could lead to a better insight into the onset and triggers of inherited metabolic diseases.
Researchers have sequenced the bottle gourd genome, providing insights into the evolutionary history and relationships of cucurbits. The study reconstructed the ancient genomic history of the Cucurbitaceae family, revealing new information on disease resistance genes and genetic traits.
Bioengineers examine genomic diversity of microbes, exploring how mutation and recombination influence evolution. They find a balance between opposing forces that determine whether a species remains stable or diverges.
Researchers analyzed 224 ST8 isolates and found that the ancestor likely emerged in Central Europe during the mid-19th century. The lineage then spread globally, acquiring characteristics of USA300 and becoming widespread in North America by the early 20th century.
The genome of a wild ancestor of bread wheat, Aegilops tauschii, has been sequenced by an international team of scientists. The findings will enable researchers to discover new genes improving wheat quality and resistance to diseases. This breakthrough technology can be applied to other plant genomes.
Researchers develop new data mining technique to extract genetic information from large sequence data sets. The method, tested on a plant family with unique floral structures, retrieves useful sequences from genes influencing flower shape and symmetry.
Researchers at Kyoto University used a chimpanzee parent-offspring trio to estimate direct mutation rates, finding higher rates than in humans. The study also revealed a strong male-biased mutation spectrum and new structural alterations.
Researchers at the University of Georgia sequenced the genome of garden asparagus, shedding light on sex chromosome evolution and aiding breeding efforts. They identified genetic markers that allow breeders to efficiently distinguish male and female plants, paving the way for more efficient development and production of valuable hybrid...
A team of Chinese researchers has sequenced and analyzed the reindeer genome, revealing unique features such as a smaller genome size and 335 genes specific to the species. The findings provide valuable resources for understanding the processes of evolution, domestication, and adaptation to extreme environments.
A team of researchers has sequenced the genomes of four Armillaria fungi, including A. ostoyae, to better understand its evolution and devastating impact on forests. The study reveals a vast array of gene families involved in pathogenicity and lignocellulose degradation.
Scientists have sequenced the genomes of two pumpkin species, Cucurbita maxima and Cucurbita moschata, to understand their contrasting desirable traits. The study reveals an interesting evolutionary history, with pumpkins being a paleotetraploid resulting from the combination of two ancient genomes.
Scientists from the University of Geneva explore links between diseases and gene activity to build a model identifying specific sequences in the non-coding genome. The study reveals surprising results, including brain tissues being key contributors to schizophrenia risk and the small intestine playing a role in disease development.
Scientists have completed the sequencing of the stevia plant genome, revealing key enzyme groups and potentially new markers for breeding. The research provides a better understanding of the stevia plant's biosynthesis pathways and will enable the creation of improved stevia varieties with optimized levels of sweet-tasting compounds.
Researchers discovered 96 transcription regulatory sequences (TRSs) used by arterivirus Simian hemorrhagic fever virus to produce subgenomic messenger RNAs, exceeding the previously reported nine TRSs. The study found that multiple TRSs are involved in producing structural proteins and alternative reading frames.
The sea cucumber genome provides new insights into its ability to regenerate damaged body parts, including viscera, which can be regrown within weeks. The study identified specific genes that may contribute to this ability, offering potential avenues for regenerative medicine research.
Researchers have discovered a new genetic signature for autism by analyzing the genomes of 516 autistic children and their families. The study found that individuals with autism are more likely to have multiple genetic variations, suggesting a complex interplay between genes in the development of the disorder.
Researchers sequenced the genome of wild olive trees, uncovering insights into oil biosynthesis and the evolution of olive oil production. The study found that ancient gene duplication events led to increased expression of genes involved in oleic acid production.
Researchers sequenced a habu genome and compared it to its sister species, shedding light on the evolution of snake venoms. Genetic drift plays a significant role in the evolution of snake venom, according to the study.
The Critical Assessment of Metagenome Interpretation (CAMI) Challenge evaluated computational tools for metagenomes, assessing assemblers, binners, and taxonomic profilers. The benchmarking results provide performance overviews for developers and applied scientists, informing the selection of suitable software for research questions.
Researchers at Uppsala University discovered how CRISPR-Cas9 finds its target sequence in the genome, taking around six hours to search a bacterium's four million base pairs. To improve speed and reliability, they found that sacrificing Cas9's flexibility can lead to faster, but still versatile genetic scissors.
A recent study found evidence of an ancient whole genome duplication event in Cucurbitaceae plants, occurring 107-118 million years ago. This event is proposed to have driven the fast divergence and success of seed and flowering plants.