Research reading and comparing genomes. Covers disease redefinition, pangenome-guided breeding, crop pathogens, and reference genomes for neuroscience.
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.
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.
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 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.
University of Delaware researchers studied microbes from James Cameron's Deepsea Challenge Expedition, revealing a new branch on the microbial family tree. The Parcubacteria were found to have a simple metabolism but with extra features, indicating they may be able to perform anaerobic respiration and adapt to cold environments.
Researchers found that each transposon family interprets cell signals uniquely and uses distinct strategies to determine jumping timing. This study sheds light on the complex interactions between host cells and jumping genes.
A breakthrough in sequencing the white Guinea yam genome has opened up possibilities for improving the staple crop's yields, sustainability, and disease resistance. This achievement will help farmers increase productivity and transform yams from a neglected 'orphan' crop to a more domesticated and economically viable food source.
Researchers sequenced Pearl millet genome, revealing molecular properties hinting at drought resistance mechanisms. The findings provide a resource for marker-selected breeding studies to improve agronomic traits in arid environments.
A research team has developed a method using modified CRISPR to find gene activators associated with autoimmune disorders. By targeting specific regions of the genome, they identified fundamental circuitry of diseases such as inflammatory bowel disease and Crohn's disease, providing new insights into their mechanisms.
Researchers at Royal Botanic Gardens Kew detail for the first time the opportunities for plant sciences with portable real-time DNA sequencing. By sequencing random pieces of the genome in the field, accurate species identification is possible within a few hours of collecting a specimen.
Researchers used a portable DNA sequencer to track the movement of the Zika virus, understanding its evolution and predicting future outbreaks. The study analyzed 254 whole genomes of the pathogen, revealing that Zika circulated silently in all regions of the Americas at least a year before the first confirmed cases.
Scientists have established minimum metadata requirements for single-cell genomics and metagenome-assembled genomes, enabling researchers to compare analyses and assess genome quality. The proposed categories include Low-Quality Drafts, Medium-Quality Drafts, High-Quality Drafts, and Finished Quality.
A team of scientists used whole genome sequencing to identify the cause of a respiratory disease that affected almost 77,000 native Icelandic horses in 2010. The researchers found that the gram-positive bacterium Streptococcus zooepidemicus was the culprit behind the outbreak.
Tardigrades' DNA shows no evidence of extraordinary survival means, contradicting previous ideas. The genomes provide insight into their close relationship with nematodes and potential applications in biotechnology.
The Porphyra genome revealed insights into its survival in extreme environments, including ultraviolet protection and thermal tolerance. The research also found a reduced cytoskeleton and unique signaling molecules that contribute to the species' small stature.
The sequencing of Porphyra's genome revealed minimal structural elements in its cellular cytoskeletons, allowing it to thrive in extreme environments. The analysis also uncovered genes for UV protection and compounds that enable the organism to withstand desiccation.
The sand rat genome shows a highly divergent GC-rich genomic domain with several essential genes, including the insulin-regulating homeobox gene Pdx1. This region is subject to elevated mutation rates, which could influence evolution and the course of diabetes.
Scientists at the University of Texas at Austin have developed a technique that can spot editing mistakes made by CRISPR, allowing for more precise gene therapies. The method involves rapidly testing a CRISPR molecule across a person's entire genome to foresee potential interactions.
A pilot randomized trial found that about 22% of generally healthy adult patients with whole genome sequencing results had a previously unrecognized variant with potential risk for a rare Mendelian disease. However, only about 4% had a clinically relevant abnormality related to a variant.
Researchers at Rutgers University have invented a technology to clone thousands of genes simultaneously, creating massive libraries of proteins from DNA samples. This innovation could lead to rapid discovery of new medicines and biomarkers, revolutionizing the field of functional genomics.
Researchers at TUM and Helmholtz Zentrum München developed a method that significantly increases the chances of identifying genetic triggers in rare hereditary disorders. By sequencing both DNA and RNA, they were able to narrow down gene candidates in 10% of cases, while reducing false positives.
A group of scientists found that parasitic nematode species can thrive without sex by using large, duplicated genomes. These genomes provide a reservoir for adaptation to different environments and plant hosts, giving the nematodes an evolutionary advantage over their sexual relatives.
A new software tool called Mendel,MD can help doctors analyze patients' genetic data to diagnose diseases caused by mutations. Developed for easy use by physicians, the tool is freely available and has been validated using clinical cases and tests at multiple research centers.
A global standard method for whole genome sequencing will facilitate real-time data sharing among public health laboratory networks, increasing efficiency in detecting and responding to foodborne illnesses. The adoption of this method is expected to save lives and reduce economic burdens.
Researchers have discovered a new complex of enzymes in herbivore gut fungi that can break down plant biomass into sugars, offering potential for sustainable fuels and chemicals. The unique structure of these enzymes, called cellulosomes, has the potential to be engineered for industrial use, reducing the need for current enzyme mixtures.
Researchers identified mutations in the KDSR gene, which disrupts ceramide production, leading to dry, scaly skin. Isotretinoin, a commonly used acne medication, counteracts this effect, allowing patients to produce ceramides and alleviate symptoms.
A new study found that CRISPR-Cas9 gene editing can cause hundreds of unintended mutations, including single nucleotide changes and deletions in non-coding regions. The researchers emphasize the importance of using whole genome sequencing to detect off-target effects and encourage others to use this method for safer editing.
Scientists have discovered a genetic variant that enables the Mylopotamos Greek population to live long and healthy lives despite consuming an animal-rich diet. The variant, rs145556679, is associated with lower levels of 'bad' natural fats and cholesterol, reducing the risk of cardiovascular disease.