Publications by authors named "Hiram Clawson"

The UCSC Genome Browser (https://genome.ucsc.edu) is a widely utilized web-based tool for visualization and analysis of genomic data, encompassing over 4000 assemblies from diverse organisms.

View Article and Find Full Text PDF
Article Synopsis
  • The study investigates the genetic and brain features linked to vocal learning in mammals by comparing data from the Egyptian fruit bat and 215 other placental mammals.* -
  • Researchers found that certain proteins evolve more slowly in vocal learners and identified a specific brain region responsible for vocal motor control in the Egyptian fruit bat.* -
  • Using machine learning, they uncovered 50 regulatory elements that are associated with vocal learning, suggesting that losses in these elements played a role in the evolution of vocal learning in mammals.*
View Article and Find Full Text PDF
Article Synopsis
  • Noncoding DNA helps scientists understand how genes work and how they relate to diseases in humans.
  • Researchers studied the DNA of many primates to find specific regulatory parts that are important for gene regulation.
  • They discovered a lot of these regulatory elements in humans that are different from those in other mammals, which can help explain human traits and health issues.
View Article and Find Full Text PDF

The UCSC Genome Browser (https://genome.ucsc.edu) is a web-based genomic visualization and analysis tool that serves data to over 7,000 distinct users per day worldwide.

View Article and Find Full Text PDF

Interactive graphical genome browsers are essential tools in genomics, but they do not contain all the recent genome assemblies. We create Genome Archive (GenArk) collection of UCSC Genome Browsers from NCBI assemblies. Built on our established track hub system, this enables fast visualization of annotations.

View Article and Find Full Text PDF

Interactive graphical genome browsers are essential tools for biologists working with DNA sequences. Although tens of thousands of new genome assemblies have become available over the last decade, accessibility is limited by the work involved in manually creating browsers and curating annotations. The results can push the limits of data storage infrastructure.

View Article and Find Full Text PDF

The UCSC Genome Browser (https://genome.ucsc.edu) is an omics data consolidator, graphical viewer, and general bioinformatics resource that continues to serve the community as it enters its 23rd year.

View Article and Find Full Text PDF

Euarchontoglires, once described as Supraprimates, comprise primates, colugos, tree shrews, rodents, and lagomorphs in a clade that evolved about 90 million years ago (mya) from a shared ancestor with Laurasiatheria. The rapid speciation of groups within Euarchontoglires, and the subsequent inherent incomplete marker fixation in ancestral lineages, led to challenged attempts at phylogenetic reconstructions, particularly for the phylogenetic position of tree shrews. To resolve this conundrum, we sampled genome-wide presence/absence patterns of transposed elements (TEs) from all representatives of Euarchontoglires.

View Article and Find Full Text PDF

The UCSC Genome Browser has been an important tool for genomics and clinical genetics since the sequence of the human genome was first released in 2000. As it has grown in scope to display more types of data it has also grown more complicated. The data, which are dispersed at many locations worldwide, are collected into one view on the Browser, where the graphical interface presents the data in one location.

View Article and Find Full Text PDF

The UCSC Genome Browser, https://genome.ucsc.edu, is a graphical viewer for exploring genome annotations.

View Article and Find Full Text PDF
Article Synopsis
  • Scientists need good reference genomes to study biology, diseases, and protect wildlife, but there are only a few for non-microbial species.
  • The Genome 10K (G10K) group worked for five years to improve the way they create these high-quality genomes and gathered information from 16 different animal species.
  • Their work showed that special long-read technology improves genome quality, fixed errors in old genome sequences, and discovered new things about genes and chromosomes, leading to a new project to create complete genomes for about 70,000 vertebrate species.
View Article and Find Full Text PDF

For more than two decades, the UCSC Genome Browser database (https://genome.ucsc.edu) has provided high-quality genomics data visualization and genome annotations to the research community.

View Article and Find Full Text PDF
Article Synopsis
  • * The UCSC Genome Browser provides visualizations of mutations from thousands of SARS-CoV-2 genomes, along with comparisons to other coronaviruses and detailed annotations like immune epitopes and CRISPR guides.
  • * The platform encourages community contributions for continuous improvement, enabling researchers to share their findings quickly and collectively enhance global research efforts.
View Article and Find Full Text PDF

Background: Nearly half the human genome consists of repeat elements, most of which are retrotransposons, and many of which play important biological roles. However repeat elements pose several unique challenges to current bioinformatic analyses and visualization tools, as short repeat sequences can map to multiple genomic loci resulting in their misclassification and misinterpretation. In fact, sequence data mapping to repeat elements are often discarded from analysis pipelines.

View Article and Find Full Text PDF

The University of California Santa Cruz Genome Browser website (https://genome.ucsc.edu) enters its 20th year of providing high-quality genomics data visualization and genome annotations to the research community.

View Article and Find Full Text PDF

How reliable are the presence/absence insertion patterns of the supposedly homoplasy-free retrotransposons, which were randomly inserted in the quasi infinite genomic space? To systematically examine this question in an up-to-date, multigenome comparison, we screened millions of primate transposed Alu SINE elements for incidences of homoplasious precise insertions and deletions. In genome-wide analyses, we identified and manually verified nine cases of precise parallel Alu insertions of apparently identical elements at orthologous positions in two ape lineages and twelve incidences of precise deletions of previously established SINEs. Correspondingly, eight precise parallel insertions and no exact deletions were detected in a comparison of lemuriform primate and human insertions spanning the range of primate diversity.

View Article and Find Full Text PDF

The UCSC Genome Browser (https://genome.ucsc.edu) is a graphical viewer for exploring genome annotations.

View Article and Find Full Text PDF

The UCSC Genome Browser (https://genome.ucsc.edu) provides a web interface for exploring annotated genome assemblies.

View Article and Find Full Text PDF

Rapid species radiation due to adaptive changes or occupation of new ecospaces challenges our understanding of ancestral speciation and the relationships of modern species. At the molecular level, rapid radiation with successive speciations over short time periods-too short to fix polymorphic alleles-is described as incomplete lineage sorting. Incomplete lineage sorting leads to random fixation of genetic markers and hence, random signals of relationships in phylogenetic reconstructions.

View Article and Find Full Text PDF

Since its 2001 debut, the University of California, Santa Cruz (UCSC) Genome Browser (http://genome.ucsc.edu/) team has provided continuous support to the international genomics and biomedical communities through a web-based, open source platform designed for the fast, scalable display of sequence alignments and annotations landscaped against a vast collection of quality reference genome assemblies.

View Article and Find Full Text PDF

Tarsiers are phylogenetically located between the most basal strepsirrhines and the most derived anthropoid primates. While they share morphological features with both groups, they also possess uncommon primate characteristics, rendering their evolutionary history somewhat obscure. To investigate the molecular basis of such attributes, we present here a new genome assembly of the Philippine tarsier (Tarsius syrichta), and provide extended analyses of the genome and detailed history of transposable element insertion events.

View Article and Find Full Text PDF

For the past 15 years, the UCSC Genome Browser (http://genome.ucsc.edu/) has served the international research community by offering an integrated platform for viewing and analyzing information from a large database of genome assemblies and their associated annotations.

View Article and Find Full Text PDF

Freed from the competition of large raptors, Paleocene carnivores could expand their newly acquired habitats in search of prey. Such changing conditions might have led to their successful distribution and rapid radiation. Today, molecular evolutionary biologists are faced, however, with the consequences of such accelerated adaptive radiations, because they led to sequential speciation more rapidly than phylogenetic markers could be fixed.

View Article and Find Full Text PDF

Background: With the Ebola epidemic raging out of control in West Africa, there has been a flurry of research into the Ebola virus, resulting in the generation of much genomic data.

Methods: In response to the clear need for tools that integrate multiple strands of research around molecular sequences, we have created the University of California Santa Cruz (UCSC) Ebola Genome Browser, an adaptation of our popular UCSC Genome Browser web tool, which can be used to view the Ebola virus genome sequence from GenBank and nearly 30 annotation tracks generated by mapping external data to the reference sequence. Significant annotations include a multiple alignment comprising 102 Ebola genomes from the current outbreak, 56 from previous outbreaks, and 2 Marburg genomes as an outgroup; a gene track curated by NCBI; protein annotations curated by UniProt and antibody-binding epitopes curated by IEDB.

View Article and Find Full Text PDF

Launched in 2001 to showcase the draft human genome assembly, the UCSC Genome Browser database (http://genome.ucsc.edu) and associated tools continue to grow, providing a comprehensive resource of genome assemblies and annotations to scientists and students worldwide.

View Article and Find Full Text PDF