Articles tagged with Genome Sequencing
Researchers have sequenced the koala genome, uncovering unique features of its taste receptor genes and enabling it to detect toxicity levels in eucalyptus leaves. This adaptation allows koalas to optimize nutrient ingestion while avoiding toxic metabolites.
The study found that goat domestication was a complex process with genetic exchange between wild and domesticated goats, selection by early farmers, and a mix of different ancestral strands. The analysis revealed distinct patterns of genetic differentiation across the Fertile Crescent and surrounding regions.
Researchers sequenced the first fern genome, enabling insights into land plant evolution and cyanobacterial symbioses. The study revealed genes specific to Azolla's interaction with Nostoc, a cyanobiont, and an important insecticidal gene that provides protection against insect pests.
The University of California, Davis, is leading a $2.5 million USDA-funded project to develop a cow genomics program. This initiative aims to unlock the secrets of the bovine genome, enabling more efficient genetic selection for improved growth and disease resistance in cattle.
Researchers have found a new lineage of giant pandas in ancient DNA from a 22,000-year-old specimen. The findings suggest that the ancient panda separated from present-day pandas 144,000 to 227,000 years ago, indicating a distinct group not found today.
Researchers used whole exome sequencing and whole genome sequencing to detect genetic causes of neonatal death in unexplained cases. The study found a genetic cause in 23% of prospective cohort samples and strong candidates in 18% of retrospective cohort samples.
A large-scale study reveals an abundant and widely distributed suite of non-photosynthetic bacterial populations responsible for fixing nitrogen in the surface ocean. The research, published in Nature Microbiology, provides the first genomic evidence of non-photosynthetic bacteria with nitrogen fixation capabilities.
A study by deCODE Genetics reveals that most Icelanders have unmixed Norse or Gaelic ancestry, with a shift towards Norse dominance over time. The research also shows genetic divergence from ancestral populations in Scandinavia and the British-Irish Isles.
A new study reveals that Zika virus was introduced to Mexico earlier than previously thought, with evidence of two annual outbreaks across multiple regions. The research also highlights the need for better data collection to track future epidemics of mosquito-borne diseases.
Researchers sequenced bittersweet plastid genome to correct errors in genetic databases, placing it as a model for nightshade chloroplast comparative genomics. The study also presented a new hypothesis of the ancestral genome, showing structural re-arrangements coinciding with bigger evolutionary changes.
A comprehensive genomic database for fishes has resolved evolutionary relationships among 131 species, including tuna and seahorses, and identified genetic markers to track divergence through time.
Scientists have confirmed the existence of a new cryptic amphipod species, Epimeria frankei, in the North Sea. The discovery was made possible by analyzing DNA barcodes and genomic information, which revealed subtle differences between two previously thought to be one species.
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.