{"id":17871,"date":"2020-09-30T20:41:14","date_gmt":"2020-09-30T18:41:14","guid":{"rendered":"https:\/\/ellipse.prbb.org\/?p=17871"},"modified":"2020-09-30T21:47:19","modified_gmt":"2020-09-30T19:47:19","slug":"neandertals-i-homo-sapiens-mes-a-prop-que-mai","status":"publish","type":"post","link":"https:\/\/ellipse.prbb.org\/ca\/neandertals-i-homo-sapiens-mes-a-prop-que-mai\/","title":{"rendered":"Neandertals i Homo sapiens, m\u00e9s a prop que mai"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Un <a href=\"https:\/\/www.ibe.upf-csic.es\/home\/-\/asset_publisher\/T2caeLMECPvW\/content\/id\/237398494\/maximized\" target=\"_blank\" rel=\"noreferrer noopener\">estudi recent<\/a>, que ha comptat amb la participaci\u00f3 de <a rel=\"noreferrer noopener\" href=\"https:\/\/www.ibe.upf-csic.es\/\" target=\"_blank\">l&#8217;Institut de Biologia Evolutiva (IBE)<\/a>, ha analitzat cinc seq\u00fc\u00e8ncies gen\u00e8tiques d&#8217;ADN f\u00f2ssil i ha concl\u00f2s que <strong>neandertals i <em>Homo sapiens<\/em> presenten una gran proximitat gen\u00e8tica.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&#8217;an\u00e0lisi, realitzat de manera novedosa en <strong>el cromosoma Y <\/strong>(ja que la majoria de mostres ben conservades fins ara eren de dones), ha perm\u00e8s plantejar una hip\u00f2tesi segons la qual <strong>hom\u00ednids relacionats amb el llinatge <em>H. sapiens<\/em> i neandertals van tenir una trobada fa uns 300.000 anys<\/strong>. En aquesta trobada,<strong> alguns gens propis dels <em>H. sapiens<\/em> van ser transferits als neandertals<\/strong>, reempla\u00e7ant aix\u00ed els que compartien amb una altra esp\u00e8cie d&#8217;hom\u00ednids, els&nbsp;denisovans&nbsp;(localitzats en la cova de&nbsp;Denisova, a Sib\u00e8ria).<\/p>\n\n\n\n<div style=\"height:42px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>\u201cAmb aquest estudi, no sols descobrim una nova migraci\u00f3 d&#8217;\u00c0frica a Europa de fa uns 300.000 anys, sin\u00f3 que podem fer una predicci\u00f3: els cromosomes Y anteriors a aquesta data seran m\u00e9s semblants als dels&nbsp;denisovans&nbsp;que als dels propis neandertals\u201d<br><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/els-cientifics-que-treballem-en-evolucio-humana-tenim-el-deure-moral-de-parlar-ne-per-contrarestar-prejudicis\/\" target=\"_blank\">Carles Lalueza Fox<\/a><\/strong><br>(investigador principal del <a rel=\"noreferrer noopener\" href=\"http:\/\/www.biologiaevolutiva.cat\/clalueza\/\" target=\"_blank\">Paleogenomics Lab IBE<\/a>)<\/p><\/blockquote>\n\n\n\n<div style=\"height:42px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Encara que estudis previs havien demostrat que&nbsp;<strong>denisovans&nbsp;i neandertals eren m\u00e9s pr\u00f2xims&nbsp;filogen\u00e9ticamente&nbsp;que els <em>H. sapiens<\/em><\/strong> (amb qui van compartir espai i temps durant m\u00e9s de 400.000 anys), els nous resultats han posicionat als neandertals com \u00abel grup hum\u00e0 germ\u00e0 de l&#8217;esp\u00e8cie humana actual\u00bb.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L&#8217;an\u00e0lisi, per tant, ha <strong>establert el moment en el qual <em>H. sapiens<\/em> i neandertals es van aproximar gen\u00e8ticament<\/strong>, i ha perm\u00e8s continuar avan\u00e7ant per a con\u00e8ixer millor el nostre passat.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un estudi, en el qual ha participat l&#8217;IBE, ha revelat antigues hibridacions que explicarien la semblan\u00e7a gen\u00e8tica entre els Homo sapiens i els neandertals.<\/p>\n","protected":false},"author":9,"featured_media":17884,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26],"tags":[275,283,708,211],"new-type":[35],"class_list":["post-17871","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recerca","tag-adn","tag-evolucio","tag-genetica","tag-ibe-csic-upf","new-type-noticies"],"acf":[],"_links":{"self":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/17871","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/comments?post=17871"}],"version-history":[{"count":8,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/17871\/revisions"}],"predecessor-version":[{"id":17887,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/17871\/revisions\/17887"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media\/17884"}],"wp:attachment":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media?parent=17871"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/categories?post=17871"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/tags?post=17871"},{"taxonomy":"new-type","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/new-type?post=17871"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}