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Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
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Genome Annotation and Assembly03:36

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The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
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Genome-wide Association Studies-GWAS01:11

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Genome-wide association studies or GWAS are used to identify whether common SNPs are associated with certain diseases. Suppose specific SNPs are more frequently observed in individuals with a particular disease than those without the disease. In that case, those SNPs are said to be associated with the disease. Chi-square analysis is performed to check the probability of the allele likely to be associated with the disease.
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Evolutionary Relationships through Genome Comparisons02:54

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Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
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Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.
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Genomic DNA in Eukaryotes00:58

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Eukaryotes have large genomes compared to prokaryotes. To fit their genomes into a cell, eukaryotic DNA is packaged extraordinarily tightly inside the nucleus. To achieve this, DNA is tightly wound around proteins called histones, which are packaged into nucleosomes that are joined by linker DNA and coil into chromatin fibers. Additional fibrous proteins further compact the chromatin, which is recognizable as chromosomes during certain phases of cell division.
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An Integrated Approach for Microprotein Identification and Sequence Analysis
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The UCSC Genome Browser database: 2016 update.

Matthew L Speir1, Ann S Zweig2, Kate R Rosenbloom2

  • 1Genomics Institute, University of California Santa Cruz, Santa Cruz, CA 95064, USA mspeir@soe.ucsc.edu.

Nucleic Acids Research
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Summary
This summary is machine-generated.

The UCSC Genome Browser provides an integrated platform for analyzing genome data, with recent updates including new assemblies, enhanced gene annotations, and improved tools for data integration and analysis.

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Area of Science:

  • Genomics
  • Bioinformatics
  • Computational Biology

Background:

  • The UCSC Genome Browser has been a vital resource for 15 years, offering a unified platform for genome assembly and annotation analysis.
  • Continuous development ensures the platform remains current with new datasets and software features.

Purpose of the Study:

  • To report on the latest release highlights and enhancements of the UCSC Genome Browser.
  • To showcase improvements in data accessibility, visualization, and analytical tools for genomic research.

Main Methods:

  • Development and integration of new genome browsers for various assemblies (e.g., bonobo, zebrafish).
  • Expansion of gene annotation sets and genomic regulatory data.
  • Enhancements to track and assembly hub support.
  • Introduction of the 'Data Integrator' tool for multi-track data intersection.

Main Results:

  • New and updated genome browsers are available for multiple species.
  • Expanded datasets for the human assembly (hg38/GRCh38) include updated GENCODE gene predictions, ClinVar/ClinGen variants, and regulatory data.
  • Improved support for assembly hubs and a new multiple genome alignment feature.

Conclusions:

  • The UCSC Genome Browser continues to evolve, offering a comprehensive and enhanced platform for genomic research.
  • Recent updates facilitate more sophisticated analysis of complex genomic datasets, including human variation and regulatory elements.