Difference between revisions of "Genomics"

From Biolecture.org
imported>S
imported>Jiyoung Oh
Line 1: Line 1:
<p><span style="font-size: x-large"><strong>What is genomics?</strong></span><font size="3"><strong><br />
+
<p>&lt;Students are asked to do&gt;</p>
<br />
+
 
Genomics</strong> is the [[omics]] study of [[gene]]s of individual organisms,&nbsp;populations, and species. <br />
+
<p>1) Define Genomics your own way after doing research on what genomes are and how we study.</p>
</font></p>
+
 
<p><font size="3">It is also a paradigm of performing biological science that deviates from&nbsp;investigating single genes, their functions, and roles. <br />
+
<p>&nbsp;Genomes - total of genes in cell or species.</p>
</font></p>
+
 
<p><font size="3">The main reason of an independent biological discipline is that it deals with very large sets of genetic information to automatically analyze information using interaction and network concepts. </font></p>
+
<p>&nbsp;Genomics - The study of sturcures or function of genomes</p>
<p><font size="3">Genomics inevitably employs high performance computing and bioinformatics technologies.</font></p>
+
 
<p><span class="mw-headline"><font size="4">&nbsp; </font></span></p>
+
<p>2) What is the origin of genomics?</p>
<div v:shape="_x0000_s1026"><span style="font-size: 32pt"><font color="#339966" size="5">&quot;[[Genome sequencing is not Genomics]]&quot;</font></span></div>
+
 
 +
<p>genome + omics(=a field of study in biology)</p>
 +
 
 +
<p>3) History of genomics?</p>
 +
 
 +
<p>https://en.wikipedia.org/wiki/Genomics (reference)</p>
 +
 
 +
<p>From the Greek &Gamma;&Epsilon;&Nu;<em>gen</em>, &quot;gene&quot; (gamma, epsilon, nu, epsilon) meaning &quot;become, create, creation, birth&quot;, and subsequent variants: genealogy, genesis, genetics, genic, genomere, genotype, genus etc. While the word&nbsp;<em>genome</em>&nbsp;(from the&nbsp;<a href="https://en.wikipedia.org/wiki/German_language" title="German language">German</a>&nbsp;<em>Genom</em>, attributed to&nbsp;<a href="https://en.wikipedia.org/wiki/Hans_Winkler" title="Hans Winkler">Hans Winkler</a>) was in use in&nbsp;<a href="https://en.wikipedia.org/wiki/English_language" title="English language">English</a>&nbsp;as early as 1926,&nbsp;the term&nbsp;<em>genomics</em>&nbsp;was coined by Tom Roderick, a&nbsp;<a href="https://en.wikipedia.org/wiki/Geneticist" title="Geneticist">geneticist</a>&nbsp;at the&nbsp;<a href="https://en.wikipedia.org/wiki/Jackson_Laboratory" title="Jackson Laboratory">Jackson Laboratory</a>&nbsp;, over beer at a meeting held in&nbsp;<a href="https://en.wikipedia.org/wiki/Maryland" title="Maryland">Maryland</a>&nbsp;on the mapping of the human genome in 1986.</p>
 +
 
 +
<p>4) The future of genomics?</p>
 +
 
 +
<p>The answer is shown in youtube video.</p>
 +
 
 +
<p>This will be more used in future by comparing genomes between organisms.</p>
 +
 
 +
<p>5) What is the relationship with other omics?</p>
 +
 
 +
<p>Omics means the field of study in biology , so genomics, metabolomics and preteomics are all related.</p>
 +
 
 +
<p>6) How can we engineer genomes?</p>
 +
 
 +
<p><strong>Genome engineering</strong>&nbsp;refers to the strategies and techniques developed in recent years for the targeted, specific modification of the genetic information&nbsp;or genome&nbsp;of living organisms.&nbsp;</p>
 +
 
 +
<p>Early approaches to genome engineering involved modifying genetic sequences using only homologous recombination.&nbsp;Using a homologous sequence located on another strand as a model can lead this natural DNA maintenance mechanism to repair a DNA strand. It is possible to induce homologous recombinations between a cellular DNA strand and an exogenous DNA strand inserted in the cell by researchers, using a vector such as the modified genome of a retrovirus. The recombination phenomenon is flexible enough for a certain level of change (addition, suppression or modification of a DNA portion) to be introduced to the targeted homologous area.</p>
 +
 
 +
<p><strong>homologous recombination,&nbsp;Insertion ,Inactivation, or &ldquo;knock-out&rdquo; and&nbsp;Correction aims to remove and replace a defective gene sequence with a functional sequence.&nbsp;</strong></p>
 +
 
 +
<p><strong>&lt;Video sources&gt;</strong></p>
 +
 
 +
<p>https://www.youtube.com/watch?t=20&amp;v=J7AWWpG52zg</p>
 +
 
 +
<p>After viewing :&nbsp;</p>
 +
 
 +
<p>The title is the new age of genomics.</p>
 +
 
 +
<p>Human genomes is now we&#39;re sort of looking on a global scale how life using the bio code software creates what we see around us.</p>
 +
 
 
<p>&nbsp;</p>
 
<p>&nbsp;</p>
<p><strong><span class="mw-headline"><font size="4">History of the field</font></span></strong></p>
+
 
<p><font size="3">Genomics was practically founded by Fred Sanger group in 1970s when they developed&nbsp;a gene sequencing technique and completed the first genomes; namely bacteriophage &Phi;-X174; (5,368 bp),&nbsp;the human mitochondrial genome, and lamda virus.</font></p>
+
<p><strong>&lt;Reference&gt;</strong></p>
<p><font size="3">In 1972, Walter Fiers and his team at the Laboratory of Molecular Biology of the University of Ghent (Ghent, Belgium) were the first to determine the sequence of a gene: the gene for Bacteriophage MS2 coat protein.<sup id="_ref-0" class="reference">[1]</sup> In 1976, the team determined the complete nucleotide-sequence of bacteriophage MS2-RNA.<sup id="_ref-1" class="reference">[2]</sup> The first DNA-based genome to be sequenced in its entirety was that of bacteriophage &Phi;-X174; (5,368 bp), sequenced by Frederick Sanger in 1977<sup id="_ref-2" class="reference">[3]</sup>. The first free-living organism to be sequenced was that of <em>Haemophilus influenzae</em> (1.8 Mb) in 1995, and since then genomes are being sequenced at a rapid pace. A rough draft of the human genome was completed by Sanger centre and the Human Genome Project in early 2001.</font></p>
+
 
<p><font size="3">As of September 2007, the complete sequence was known of about 1879 viruses <sup id="_ref-3" class="reference">[4]</sup>, 577 bacterial species and roughly 23 eukaryote organisms, of which about half are fungi. <sup id="_ref-4" class="reference">[5]</sup> Most of the bacteria whose genomes have been completely sequenced are problematic disease-causing agents, such as <em>Haemophilus influenzae</em>. Of the other sequenced species, most were chosen because they were well-studied model organisms or promised to become good models. Yeast (<em>Saccharomyces cerevisiae</em>) has long been an important model organism for the eukaryotic cell, while the fruit fly <em>Drosophila melanogaster</em> has been a very important tool (notably in early pre-molecular genetics). The worm <em>Caenorhabditis elegans</em> is an often used simple model for multicellular organisms. The zebrafish <em>Brachydanio rerio</em> is used for many developmental studies on the molecular level and the flower <em>Arabidopsis thaliana</em> is a model organism for flowering plants. The Japanese pufferfish (<em>Takifugu rubripes</em>) and the spotted green pufferfish (<em>Tetraodon nigroviridis</em>) are interesting because of their small and compact genomes, containing very little non-coding DNA compared to most species. <sup id="_ref-5" class="reference">[6]</sup> <sup id="_ref-6" class="reference">[7]</sup> The mammals dog (<em>Canis familiaris</em>), <sup id="_ref-7" class="reference">[8]</sup> brown rat (<em>Rattus norvegicus</em>), mouse (<em>Mus musculus</em>), and chimpanzee (<em>Pan troglodytes</em>) are all important model animals in medical research.</font></p>
+
<p>http://www.theverge.com/2015/1/6/7501075/bowhead-whale-genome-longevity-first-time-large-whale</p>
<p><font size="3">&nbsp;</font></p>
+
 
<p><strong><span class="mw-headline"><font size="4">Bacteriophage Genomics</font></span></strong></p>
+
<p>The title is&nbsp;&nbsp;Bowhead whale genome may unlock its longevity secrets.</p>
<p><font size="3">Bacteriophages have played and continue to play a key role in bacterial genetics and molecular biology. Historically, they were used to define gene structure and gene regulation. Also the first genome to be sequenced was a bacteriophage. However, bacteriophage research did not lead the genomics revolution, which is clearly dominated by bacterial genomics. Only very recently has the study of bacteriophage genomes become prominent, thereby enabling researchers to understand the mechanisms underlying phage evolution. Bacteriophage genome sequences can be obtained through direct sequencing of isolated bacteriophages, but can also be derived as part of microbial genomes. Analysis of bacterial genomes has shown that a substantial amount of microbial DNA consists of prophage sequences and prophage-like elements. A detailed database mining of these sequences offers insights into the role of prophages in shaping the bacterial genome.<sup id="_ref-McGrath_0" class="reference">[9]</sup></font></p>
+
 
<p>&nbsp;</p>
+
<p>Scientists have finally sequenced the genome of a large whale and analyzed by comparing genomes&nbsp;resulting in&nbsp;helping humans live longer.</p>
<p><strong><span class="mw-headline"><font size="4">Cyanobacteria Genomics</font></span></strong></p>
+
 
<p><font size="3">At present there are 24 cyanobacteria for which a total genome sequence is available. 15 of these cyanobacteria come from the marine environment. These are six <em>Prochlorococcus</em><em>Synechococcus</em> strains, <em>Trichodesmium erythraeum</em> IMS101 and <em>Crocosphaera watsonii</em> [[WH8501. Several studies have demonstrated how these sequences could be used very successfully to infer important ecological and physiological characteristics of marine cyanobacteria. However, there are many more genome projects currently in progress, amongst those there are further <em>Prochlorococcus</em> and marine <em>Synechococcus</em> isolates, <em>Acaryochloris</em> and <em>Prochloron</em>, the N<sub>2</sub>-fixing filamentous cyanobacteria <em>Nodularia spumigena</em>, <em>Lyngbya aestuarii</em> and <em>Lyngbya majuscula</em>, as well as bacteriophages infecting marine cyanobaceria. Thus, the growing body of genome information can also be tapped in a more general way to address global problems by applying a comparative approach. Some new and exciting examples of progress in this field are the identification of genes for regulatory RNAs, insights into the evolutionary origin of photosynthesis, or estimation of the contribution of horizontal gene transfer to the genomes that have been analyzed.<sup id="_ref-Herrero_0" class="reference">[10]</sup></font></p>
+
<p>Genomics is perhaps the first such an automated way of pinpointing exact aging associated mutations in such a short time.</p>
<p>&nbsp;</p>
 
<p><font size="4">[[Genome sequencing and genomics]]</font></p>
 
<p>&nbsp;</p>
 
<p><b><span style="font-size: large">Learning Materials</span></b></p>
 
<p><font size="4">[https://www.youtube.com/watch?v=WBE8Mn9ts6A What is a genome?]</font></p>
 
<p><span style="font-size: large"><strong><span class="mw-headline">See also</span></strong></span></p>
 
<ul>
 
    <li><font size="3">[[Pangenomics]] and [[Pangenome]]</font></li>
 
    <li><font size="3">[[Personal Genome Project]]</font></li>
 
    <li><font size="3">[[Omics]] </font></li>
 
    <li><font size="3">[[Proteomics]] </font></li>
 
    <li><font size="3">[[Interactomics]] </font></li>
 
    <li><font size="3">[[Functional genomics]] </font></li>
 
    <li><font size="3">[[Computational genomics]] </font></li>
 
    <li><font size="3">[[Nitrogenomics]]</font></li>
 
    <li><font size="3">[[Pathogenomics]]</font></li>
 
</ul>
 
<p>&nbsp;</p>
 
<p><span style="font-size: large"><strong><span class="mw-headline">References</span></strong></span></p>
 
<ol class="references">
 
    <li id="_note-0"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-0">^</a></strong> Min Jou W, Haegeman G, Ysebaert M, Fiers W., Nucleotide sequence of the gene coding for the bacteriophage MS2 coat protein, Nature. 1972 May 12;237(5350):82-8 </font></li>
 
    <li id="_note-1"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-1">^</a></strong> Fiers W et al., Complete nucleotide-sequence of bacteriophage MS2-RNA - primary and secondary structure of replicase gene, Nature, 260, 500-507, 1976 </font></li>
 
    <li id="_note-2"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-2">^</a></strong> Sanger F, Air GM, Barrell BG, Brown NL, Coulson AR, Fiddes CA, Hutchison CA, Slocombe PM, Smith M., Nucleotide sequence of bacteriophage phi X174 DNA, Nature. 1977 Feb 24;265(5596):687-95 </font></li>
 
    <li id="_note-3"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-3">^</a></strong> <a title="http://www.ncbi.nlm.nih.gov/genomes/VIRUSES/virostat.html" class="external text" rel="nofollow" href="http://www.ncbi.nlm.nih.gov/genomes/VIRUSES/virostat.html"><em>The Viral Genomes Resource</em>, NCBI Friday, 14 September, 2007</a></font></li>
 
    <li id="_note-4"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-4">^</a></strong> <a title="http://www.ncbi.nlm.nih.gov/genomes/static/gpstat.html" class="external text" rel="nofollow" href="http://www.ncbi.nlm.nih.gov/genomes/static/gpstat.html"><em>Genome Project Statistic</em>, NCBI Friday, 14 September, 2007</a></font></li>
 
    <li id="_note-5"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-5">^</a></strong> <a title="http://news.bbc.co.uk/1/hi/sci/tech/3760766.stm" class="external text" rel="nofollow" href="http://news.bbc.co.uk/1/hi/sci/tech/3760766.stm">BBC article <em>Human gene number slashed</em> from Wednesday, 20 October, 2004</a></font></li>
 
    <li id="_note-6"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-6">^</a></strong> <a title="http://www.cbse.ucsc.edu/news/2003/10/16/pufferfish_fruitfly/index.shtml" class="external text" rel="nofollow" href="http://www.cbse.ucsc.edu/news/2003/10/16/pufferfish_fruitfly/index.shtml">CBSE News, Thursday October 16, 2003</a></font></li>
 
    <li id="_note-7"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-7">^</a></strong> <a title="http://www.genome.gov/12511476" class="external text" rel="nofollow" href="http://www.genome.gov/12511476">NHGRI, pressrelease of the publishing of the dog genome</a></font></li>
 
    <li id="_note-McGrath"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-McGrath_0">^</a></strong> <cite class="book" style="font-style: normal">Mc Grath S and van Sinderen D (editors). (2007). <em><a title="http://www.horizonpress.com/phage" class="external text" rel="nofollow" href="http://www.horizonpress.com/phage">Bacteriophage: Genetics and Molecular Biology</a></em>, 1st ed., Caister Academic Press. <a title="http://www.horizonpress.com/phage" class="external text" rel="nofollow" href="http://www.horizonpress.com/phage">ISBN 978-1-904455-14-1</a> .</cite><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Bacteriophage%3A+Genetics+and+Molecular+Biology&amp;rft.au=Mc+Grath+S+and+van+Sinderen+D+%28editors%29.&amp;rft.edition=1st+ed.&amp;rft.pub=Caister+Academic+Press&amp;rft_id=http%3A%2F%2Fwww.horizonpress.com%2Fphage" class="Z3988">&nbsp;</span></font></li>
 
    <li id="_note-Herrero"><font size="3"><strong><a title="" href="http://en.wikipedia.org/wiki/Genomics#_ref-Herrero_0">^</a></strong> <cite class="book" style="font-style: normal">Herrero A and Flores E (editor). (2008). <em><a title="http://www.horizonpress.com/cyan" class="external text" rel="nofollow" href="http://www.horizonpress.com/cyan">The Cyanobacteria: Molecular Biology, Genomics and Evolution</a></em>, 1st ed., Caister Academic Press. <a title="http://www.horizonpress.com/cyan" class="external text" rel="nofollow" href="http://www.horizonpress.com/cyan">ISBN 978-1-904455-15-8</a> .</cite></font><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Cyanobacteria%3A+Molecular+Biology%2C+Genomics+and+Evolution&amp;rft.au=Herrero+A+and+Flores+E+%28editor%29.&amp;rft.edition=1st+ed.&amp;rft.pub=Caister+Academic+Press&amp;rft_id=http%3A%2F%2Fwww.horizonpress.com%2Fcyan" class="Z3988"><font size="3"> </font><br />
 
    </span></li>
 
</ol>
 
<p><span title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=The+Cyanobacteria%3A+Molecular+Biology%2C+Genomics+and+Evolution&amp;rft.au=Herrero+A+and+Flores+E+%28editor%29.&amp;rft.edition=1st+ed.&amp;rft.pub=Caister+Academic+Press&amp;rft_id=http%3A%2F%2Fwww.horizonpress.com%2Fcyan" class="Z3988"><font size="5"><br />
 
Web links</font><br />
 
[http://en.wikipedia.org/wiki/Genomics Wikipedia Genomics link]<br />
 
[http://omics.org Omics.org]<br />
 
[http://totalomics.com Totalomics.com]<br />
 
</span></p>
 
<p>[http://www.news-medical.net/health/What-is-Genomics.aspx What is Genomics? from News-Medical.net]</p>
 

Revision as of 12:59, 29 May 2016

<Students are asked to do>

1) Define Genomics your own way after doing research on what genomes are and how we study.

 Genomes - total of genes in cell or species.

 Genomics - The study of sturcures or function of genomes

2) What is the origin of genomics?

genome + omics(=a field of study in biology)

3) History of genomics?

https://en.wikipedia.org/wiki/Genomics (reference)

From the Greek ΓΕΝgen, "gene" (gamma, epsilon, nu, epsilon) meaning "become, create, creation, birth", and subsequent variants: genealogy, genesis, genetics, genic, genomere, genotype, genus etc. While the word genome (from the German Genom, attributed to Hans Winkler) was in use in English as early as 1926, the term genomics was coined by Tom Roderick, a geneticist at the Jackson Laboratory , over beer at a meeting held in Maryland on the mapping of the human genome in 1986.

4) The future of genomics?

The answer is shown in youtube video.

This will be more used in future by comparing genomes between organisms.

5) What is the relationship with other omics?

Omics means the field of study in biology , so genomics, metabolomics and preteomics are all related.

6) How can we engineer genomes?

Genome engineering refers to the strategies and techniques developed in recent years for the targeted, specific modification of the genetic information or genome of living organisms. 

Early approaches to genome engineering involved modifying genetic sequences using only homologous recombination. Using a homologous sequence located on another strand as a model can lead this natural DNA maintenance mechanism to repair a DNA strand. It is possible to induce homologous recombinations between a cellular DNA strand and an exogenous DNA strand inserted in the cell by researchers, using a vector such as the modified genome of a retrovirus. The recombination phenomenon is flexible enough for a certain level of change (addition, suppression or modification of a DNA portion) to be introduced to the targeted homologous area.

homologous recombination, Insertion ,Inactivation, or “knock-out” and Correction aims to remove and replace a defective gene sequence with a functional sequence. 

<Video sources>

https://www.youtube.com/watch?t=20&v=J7AWWpG52zg

After viewing : 

The title is the new age of genomics.

Human genomes is now we're sort of looking on a global scale how life using the bio code software creates what we see around us.

 

<Reference>

http://www.theverge.com/2015/1/6/7501075/bowhead-whale-genome-longevity-first-time-large-whale

The title is  Bowhead whale genome may unlock its longevity secrets.

Scientists have finally sequenced the genome of a large whale and analyzed by comparing genomes resulting in helping humans live longer.

Genomics is perhaps the first such an automated way of pinpointing exact aging associated mutations in such a short time.