http://horts.in/index.php?action=history&feed=atom&title=Physical_and_Genetic_structure_of_Maize 2026-06-22T22:33:45Z Revision history for this page on the wiki MediaWiki 1.37.2 http://horts.in/index.php?title=Physical_and_Genetic_structure_of_Maize&diff=911&oldid=prev 2016-06-23T08:41:50Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:11, 23 June 2016</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l1">Line 1:</td> <td colspan="2" class="diff-lineno">Line 1:</td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;">[[Category:Readings]][[Category:Rajkumar]]</ins></div></td></tr> <tr><td colspan="2" class="diff-side-deleted"></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div><ins style="font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>PLOS Genetics - 2007</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>PLOS Genetics - 2007</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br/></td></tr> </table>

Raj http://horts.in/index.php?title=Physical_and_Genetic_structure_of_Maize&diff=858&oldid=prev 2016-06-23T08:39:04Z

<p>1 revision imported</p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <tr class="diff-title" lang="en"> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 14:09, 23 June 2016</td> </tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div> </td></tr></table>

Raj http://horts.in/index.php?title=Physical_and_Genetic_structure_of_Maize&diff=857&oldid=prev 2010-01-03T19:20:08Z

<p></p> <p><b>New page</b></p><div>PLOS Genetics - 2007<br /> <br /> ==Summary==<br /> # Maize undergone 2 rounds of duplication<br /> ## Ancient one before maize-rice divergence<br /> ## Recent - after tetraploidization<br /> # Reconstructed the progenitors of Maize<br /> <br /> ==Facts==<br /> # 2300MB of genome<br /> # Clone by clone sequencing<br /> # Allotetraploidy<br /> # 2/3 of genome is with transposable element of which 95% is retro-transposons<br /> # Retro-transposons emerged after the speciation of maize (&lt;1 Mil.Year old)<br /> # Physical Map<br /> ## HICF<br /> ## FPC<br /> ## genetic markers<br /> ## sequence based marker data (overgos, BES)<br /> ==Integrated Physical and Genetic Map==<br /> # Digest - HICF (350,253 fingerprints -&gt; 1500 FPC contigs)<br /> # 25908 markers (~1900 genetic + ~24000 BES/overgos )<br /> # 24000 additional markers based on EST (STS/genebased markers in BES)<br /> #Final FPC contigs 721 covering 2100MB of the genome<br /> ## 421 is anchored by 1901 genetic markers<br /> ## Looking at the Map, it is show that EST derived markers are directly correlated with the genetic markers, suggesting that tight association of gene distribution and genetic recombination<br /> ==Maize Rice synteny==<br /> synteny was computed using &#039;&#039;&#039;SyMap&#039;&#039;&#039;<br /> # Uneven expansion of synteny blocks were found<br /> ## due to loss of genetic segments<br /> ## due to insertion of transposable elements<br /> ==Genome duplication and rearrangements in Maize==<br /> # detection of ~3 copies of each overgo supports the idea that<br /> ## Present emerged from tetraploidization of several ancient duplicated genes<br /> ## Multiple duplication<br /> ## several genome rearrangements<br /> ==Why Maize has more transposable elements/multiple re-arrangements==<br /> # Ph1 gene prevents homeologous paring (otherwise called as gene diploidization) there by it <br /> ## maintains the integrity of the genome<br /> ## strictly allows homologous paring<br /> # Maize lacks the Ph1 gene, which results in<br /> ## paring of non homologous chromosomes<br /> ## results in &#039;&#039;ectopic paring&#039;&#039;<br /> ## ultimately results in huge rearrangements of chrl. segments<br /> <br /> ----<br /> [[Category:Readings]]</div>

Raj