Articles tagged with Drosophila Genomes
A new study uses a fruit fly model to investigate the genetic basis of cocaine addiction. By genetically modifying bitter-sensing receptors in fruit flies, researchers found that these flies developed a preference for cocaine over sugar. This study suggests that genes involved in human cocaine addiction may also be active in fruit flies.
Researchers found that Copia's capsid plays a crucial role in controlling structural synaptic plasticity at the Drosophila neuromuscular junction. The study suggests that this parasitic genome element influences neuronal communication and behavior.
A study by Tulane University researchers found that tumors in female fruit flies grew 2.5 times larger than those in male fruit flies due to sex-based differences in immune response. The stronger innate immune response in females accelerated tumor growth.
Researchers at Durham University and Oxford Brookes University have identified a key gene contributing to the rapid evolution of male external genitalia in fruit flies. The study found that changes in the Sox21b gene altered genital shape and size, affecting mating duration and female choice.
Recent study on Drosophila melanogaster museum specimens shows that Northern European populations gave way to well-connected fly populations across the continent. The analysis also highlights genes that may have helped this species adapt to novel climates, viruses, and insecticides.
A new AI tool, MAFDA, tracks individual fruit flies' complex behaviors and compares them with their genetic backgrounds. This enables researchers to study behavior genetics and gain insights into inherited traits.
Researchers, led by Elizabeth King, aim to develop a knowledge base on complex genetic traits using fruit fly models. The project seeks to address the scientific knowledge gap in this field by focusing on interconnectedness among multiple factors.
A new study published in Current Biology found that active genes do not form clusters and share resources during early fruit fly development. The researchers used high-resolution microscopy to visualize the physical position of active genes within the nucleus, observing that each gene has its own pool of transcriptional machinery.
Researchers discovered that HP1a is required to establish proper chromatin structure at multiple hierarchical levels during early embryonic development. The protein plays a central role in maintaining individual chromosome integrity and establishing the global structure of the genome.
Researchers discovered HP1a as an epigenetic regulator that establishes the global structure of the genome in early Drosophila embryos. The study used powerful genetics and 3D genome modeling to show that HP1a is required for proper chromatin organization at multiple hierarchical levels during embryonic development.
Researchers identify over 4,500 novel transcripts in fruit fly genome that regulate networks of genes and contribute to genetic disorders. These findings shed light on the 'dark' portion of human genome, which accounts for 98% of its content.
A study of Peruvian populations reveals genetic adaptations to high altitude living and chronic mountain sickness. The researchers identified 11 regions containing 38 genes that were under positive selection, suggesting a molecular adaptation mechanism that regulates gene expression in response to environmental challenges.
Susan E. Celniker has made significant contributions to the field of genetics, including sequencing and annotation of the Drosophila genome. Her work has enabled proteomic studies and developed computational tools for genetics researchers.
UGA researchers have identified a hormone receptor that plays a key role in regulating female mosquito reproduction, enabling them to produce eggs after consuming blood. The discovery fills a major gap in understanding how mosquitoes reproduce and could potentially lead to strategies for controlling mosquito populations.
The sequencing of the house fly genome has identified unique detoxification and immune system genes that could aid in understanding human disease susceptibility. By studying these genes, scientists hope to develop treatments or vaccines for diseases transmitted by flies, such as typhoid and trachoma.
The modENCODE Project has provided new genomic advances on embryonic development, DNA replication, and transcriptional regulation. Researchers compared developmental gene expression between Drosophila melanogaster and Caenorhabditis elegans, finding conserved gene expression patterns during development, despite significant differences ...
Researchers at IRB Barcelona have identified a crucial protein called dBigH1 that regulates zygotic genome activation in the fly Drosophila. This discovery has significant implications for understanding embryonic development and potential connections to infertility, gestational disorders, or early miscarriage.
A whole-genome sequence of the fruit fly Drosophila mauritiana has been completed, revealing high genetic diversity across its chromosomes. The researchers identified two large regions with conserved sequences and propose that these may be the result of intragenomic conflict, potentially acting as 'speciation genes'.
Researchers discovered that when a new transposon is introduced, it triggers a response that disrupts the piRNA machinery, leading to a massive destabilization of the genome. However, as the hybrids aged, they learned to shut down the new transposon and restore fertility.
Researchers have discovered that certain transposon elements can coordinate their movement with DNA replication, allowing them to spread more rapidly through genomes. P elements, one such transposon, tend to insert themselves near the beginning of genes and at regions functioning as starting sites or origins for DNA duplication.
A comprehensive analysis of the Drosophila genome reveals new genes, alternative splicing forms, and complex chromatin organization. The findings provide a foundation for in-depth functional studies and apply to understanding genomes across all organisms.
A $1 million project aims to develop computational tools using next-generation petascale computers to analyze genome rearrangements. The team plans to test their new algorithms on a collection of fruit fly genomes, which will provide insights into the mechanisms underlying gene order diversity.
Researchers develop new algorithms using petascale computers to infer ancestral genome rearrangement events, enabling faster analysis of large genomes. The new methods will help understand the mechanisms and rate of gene rearrangements in genomes.
The special issue of Genome Research celebrates Charles Darwin's birthday and the publication of On the Origin of Species. Researchers investigate human adaptation and evolution on a genome-wide scale, describing novel fine-scale genetic structure within and between populations worldwide.
Researchers discover that large genomes make it easier to find regions of DNA controlling gene activity. The study used the genomes of flies and other insects to identify regulatory sequences previously difficult to detect in human genomes.
Researchers have completed the genomes of ten new fruit fly species, providing a comprehensive understanding of their evolution over 60 million years. The study also identified 1193 new genes and 414 corrected previously catalogued genes across the twelve closely related species.
The study of 12 Drosophila genomes provides novel insights into microRNA (miRNA) regulation, identifying 59 new miRNAs and revealing greater diversity in their role in gene expression. The analysis also reveals emergent gene function and post-transcriptional regulation mechanisms, with potential applications in human disease research.
The complete genomes of 12 Drosophila species were published in Nature, revealing genetic differences similar to those between humans and chickens. This research provides a less-biased view of evolutionary processes, enabling a better understanding of the human genome.
A large-scale comparative analysis of twelve fruit fly species reveals insights on gene evolution, functional elements, and a powerful approach to deciphering other genomes. The study identifies thousands of novel genes, evolutionary signatures, and systematically defines the functional parts of the fly genome.
The Drosophila 12 Genomes Consortium's massive collaboration has revealed considerable flaws in the way human genome biologists identify genes, showcasing the importance of comparing closely-related species. The study found over 1,193 new protein-coding genes and hundreds of new functional elements across 12 fruit fly genomes.
The modENCODE project will analyze the genomes of Drosophila melanogaster and Caenorhabditis elegans to identify functional elements, such as regulatory sequences and non-coding genes. These findings will aid in understanding human biology and medicine by providing insights into the conservation of genetic mechanisms across species.
An international team has launched the first detailed physical map of Drosophila buzzatii chromosomes, a species widely used in studies of genome evolution and ecological adaptation. The map was constructed using genomic library and physical mapping techniques, providing insights into the species' evolutionary history.
The Hox gene complex has been rearranged differently in several Drosophila species, but their expression and function are conserved. The research suggests that Hox gene clustering is a result of evolutionary history rather than functional necessity.
A team led by Steven L. Salzberg and Michael B. Eisen found three new Wolbachia species in the Drosophila genome database, including Wolbachia wAna, wSim, and wMoj.
Researchers have discovered three new bacterial species, Wolbachia wAna, wSim, and wMoj, in the genomes of Drosophila fruit flies. The discovery was made by scanning raw genomic data from the Trace Archive, a public repository of sequencing projects.
The project aims to sequence Drosophila genomes to capture natural variation and develop technology for studying human genomic variation. The data will be publicly released and software developed as part of the grant will be open sourced.
Researchers develop high-throughput method to systematically interrogate gene function using RNA interference, identifying genes involved in cell growth, survival and metabolic processes
Researchers have identified 276 G protein-coupled receptors in the Anopheles mosquito genome, including 155 external chemosensory receptors that allow female mosquitoes to detect humans and other mammals by taste or smell. The discovery provides a new approach to studying mosquitoes and reducing the spread of malaria and other diseases.
Twelve international groups compared their computer programs' power to predict gene elements within a Drosophila DNA region. Many programs detected genes with 95% accuracy, while others struggled with precise gene boundaries and promoter predictions. The project established standards for future improvements.