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	Tree of Life Redo

neochonetes

3-7-2008 12:27 PM

669 views

tags:

animal domain, tree of life, compilation, research update, nature, livescience blog, robin lloyd

neochonetes says:

This is a summary of an research article from Nature. Science teachers and interested hobbyists will be intrigued to learn how the data base was created and new implications about various changes in relationships since it takes new research into account.

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/54f5362b-b236-452b-b8ed-d007812505e3/1EF0725E-9E92-4EDA-8C55-1AD7D0765142/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/" href="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/" style="font-size: 11px;">www.livescience.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">A list of biologists long enough to choke a horse has completed a <A href="http://www.genomeweb.com/issues/news/145515-1.html">new tree of life</A> for animals, resolving the relationships among all the major groups and suggesting some weird things about the origins of animals with well-developed tissues.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">This was the surprise tissue finding — comb jellyfish (jellies with well-developed tissues) diverged from other animals even before the lowly sponge, which has no tissue to speak of.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">Either <A href="http://www.livescience.com/php/multimedia/imagegallery/igviewer.php?imgid=702&gid=46&imgserver=http://images.livescience.com">comb jellies</A> evolved their complexity independently from other animals or sponges became greatly simplified through the course of evolution</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">If corroborated, “this would significantly change the way we think about the earliest multicellular animals,”  Dunn said. The results are detailed in the March 6 issue of the journal <EM>Nature</EM>.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">These gigantic <A href="http://www.livescience.com/php/multimedia/imagegallery/igviewer.php?gid=45">trees of life</A> (this one is said to be the most comprehensive animal tree of life to date) require massive computer power to run algorithms and resolve huge matrices of data</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">more than 120 processors</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/blogs/2008/03/06/tree-full-of-animals/">in labs around the globe</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/1EF0725E-9E92-4EDA-8C55-1AD7D0765142/blog/" title="blog or email this clip"><img src="http://content8.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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