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Genomics

Genomics

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...

Evolutionary Relationships through Genome Comparisons

Evolutionary Relationships through Genome Comparisons

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...

Genome Annotation and Assembly

Genome Annotation and Assembly

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.

Genome Size and the Evolution of New Genes

Genome Size and the Evolution of New Genes

While every living organism has a genome of some kind (be it RNA, or DNA), there is considerable variation in the sizes of these blueprints. One major factor that impacts genome size is whether the organism is prokaryotic or eukaryotic. In prokaryotes, the genome contains little to no non-coding sequence, such that genes are tightly clustered in groups or operons sequentially along the chromosome. Conversely, the genes in eukaryotes are punctuated by long stretches of non-coding sequence.

Evolution of Microbial Genome

Evolution of Microbial Genome

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.

Genome-wide Association Studies-GWAS

Genome-wide Association Studies-GWAS

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.
GWAS does not require the identification of the target gene involved in...

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Related Experiment Video

Updated: May 27, 2026

An Integrated Approach for Microprotein Identification and Sequence Analysis

An Integrated Approach for Microprotein Identification and Sequence Analysis

Published on: July 12, 2022

The UCSC Genome Browser database: extensions and updates 2011.

Timothy R Dreszer¹, Donna Karolchik, Ann S Zweig

¹Center for Biomolecular Science and Engineering, School of Engineering, University of California Santa Cruz, Santa Cruz, CA 95064, USA.

Nucleic Acids Research

|November 17, 2011

Summary

This summary is machine-generated.

The University of California Santa Cruz Genome Browser provides expanded access to genomic data, incorporating new species, enhanced annotations, and remote data sharing via track hubs for improved analysis and visualization.

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Introductory Analysis and Validation of CUT&RUN Sequencing Data

Introductory Analysis and Validation of CUT&RUN Sequencing Data

Published on: December 13, 2024

Area of Science:

Genomics
Bioinformatics
Computational Biology

Background:

The University of California Santa Cruz Genome Browser is a vital resource for accessing and analyzing genomic data.
Continuous updates and expansion of genomic databases are crucial for advancing biological research.

Purpose of the Study:

To detail recent enhancements and new features of the UCSC Genome Browser.
To highlight improvements in data accessibility, visualization, and analysis capabilities.

Main Methods:

Updating the local database with new species assemblies and numerous annotation tracks.
Implementing 'track data hubs' for accessing remotely located annotation sets.
Introducing usability features such as track search and context-sensitive menus.

Main Results:

Addition of four new species assemblies to the database, with four more anticipated.
Integration of updated and new annotation tracks, including phenotype, disease, UCSC genes, and dbSNP.
Successful introduction of 'track data hubs' extending data accessibility and visualization options.
Implementation of user-friendly features enhancing data analysis and sharing.

Conclusions:

The UCSC Genome Browser continues to evolve as a comprehensive platform for genomic research.
New features significantly enhance the ability to visualize, compare, analyze, and share diverse genomic datasets.
The introduction of track data hubs broadens the scope of accessible genomic information for the scientific community.