{"id":26030,"date":"2024-07-06T12:00:45","date_gmt":"2024-07-06T10:00:45","guid":{"rendered":"https:\/\/www.laterredufutur.com\/accueil\/?p=26030"},"modified":"2024-06-30T15:58:23","modified_gmt":"2024-06-30T13:58:23","slug":"un-nouvel-apercu-de-ladn-dotzi-lhomme-des-glaces-revele-une-nouvelle-ascendance-et-dautres-surprises","status":"publish","type":"post","link":"https:\/\/www.laterredufutur.com\/accueil\/un-nouvel-apercu-de-ladn-dotzi-lhomme-des-glaces-revele-une-nouvelle-ascendance-et-dautres-surprises\/","title":{"rendered":"Un nouvel aper\u00e7u de l&rsquo;ADN d&rsquo;\u00d6tzi l&rsquo;homme des glaces r\u00e9v\u00e8le une nouvelle ascendance et d&rsquo;autres surprises"},"content":{"rendered":"<div class=\"1665f18d14f35dd9e7566e1a8ac9a3e9\" data-index=\"1\" style=\"float: none; margin:0px 0 0px 0; text-align:center;\">\n<script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block; text-align:center;\"\r\n     data-ad-layout=\"in-article\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-client=\"ca-pub-2860849627502538\"\r\n     data-ad-slot=\"3019501113\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n<\/div>\n<p>Un nouvel examen de l&rsquo;ADN de l&rsquo;homme des glaces r\u00e9v\u00e8le que ses anc\u00eatres n&rsquo;\u00e9taient pas ceux que les scientifiques pensaient auparavant.<\/p>\n<p>En 2012, des scientifiques ont dress\u00e9 un portrait complet du g\u00e9nome d&rsquo;\u00d6tzi ; il sugg\u00e9rait que la momie congel\u00e9e retrouv\u00e9e en train de fondre dans un glacier des Alpes tyroliennes avait des anc\u00eatres de la steppe caspienne ( SN : 28\/02\/12 ). Mais quelque chose clochait.<\/p>\n<p>L&rsquo;Homme des glaces a environ 5 300 ans. D&rsquo;autres personnes d&rsquo;ascendance steppique ne sont apparues dans le registre g\u00e9n\u00e9tique de l&rsquo;Europe centrale qu&rsquo;il y a environ 4 900 ans. \u00d6tzi \u00ab est trop vieux pour avoir ce type d\u2019ascendance \u00bb, d\u00e9clare l\u2019arch\u00e9og\u00e9n\u00e9ticien Johannes Krause de l\u2019Institut Max Planck d\u2019anthropologie \u00e9volutionniste de Leipzig, en Allemagne. La momie \u00ab a toujours \u00e9t\u00e9 une exception \u00bb.<\/p>\n<p><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"12948\" data-permalink=\"https:\/\/www.laterredufutur.com\/accueil\/decouvrez-otzi-la-momie-decouverte-la-plus-fascinante\/otzi-momie\/\" data-orig-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie.jpg?fit=660%2C733&amp;ssl=1\" data-orig-size=\"660,733\" data-comments-opened=\"1\" data-image-title=\"\u00d6tzi-momie\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie.jpg?fit=660%2C733&amp;ssl=1\" class=\"alignnone size-full wp-image-12948\" src=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie.jpg?resize=660%2C733&#038;ssl=1\" alt=\"\" width=\"660\" height=\"733\" srcset=\"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie.jpg?w=660&amp;ssl=1 660w, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie.jpg?resize=270%2C300&amp;ssl=1 270w\" sizes=\"auto, (max-width: 660px) 100vw, 660px\" \/><\/p>\n<p>Krause et ses coll\u00e8gues ont \u00e9labor\u00e9 un nouveau manuel d&rsquo;instructions g\u00e9n\u00e9tiques pour l&rsquo;homme des glaces. L&rsquo;ancien g\u00e9nome \u00e9tait fortement contamin\u00e9 par l&rsquo;ADN des personnes modernes, rapportent les chercheurs le 16 ao\u00fbt dans Cell Genomics . La nouvelle analyse r\u00e9v\u00e8le que \u00ab l\u2019ascendance steppique a compl\u00e8tement disparu \u00bb.<\/p>\n<p><strong>Mais l&rsquo;Iceman (L&rsquo;homme des glaces) a encore des bizarreries. Environ 90 pour cent du patrimoine g\u00e9n\u00e9tique d&rsquo;\u00d6tzi provient d&rsquo;agriculteurs du N\u00e9olithique, une quantit\u00e9 inhabituellement \u00e9lev\u00e9e par rapport aux autres vestiges de l&rsquo;\u00e2ge du cuivre, explique Krause.<\/strong><\/p>\n<p>Le nouveau g\u00e9nome de l&rsquo;homme des glaces r\u00e9v\u00e8le \u00e9galement qu&rsquo;il souffrait d&rsquo;une calvitie masculine et d&rsquo;une peau beaucoup plus fonc\u00e9e que ne le sugg\u00e8rent les repr\u00e9sentations artistiques. Les g\u00e8nes conf\u00e9rant des tons de peau clairs ne sont devenus courants qu&rsquo;il y a 4 000 \u00e0 3 000 ans, lorsque les premiers agriculteurs ont commenc\u00e9 \u00e0 adopter une alimentation \u00e0 base de plantes et n&rsquo;obtenaient pas autant de vitamine D du poisson et de la viande que les chasseurs-cueilleurs, explique Krause.<\/p>\n<p><strong>Comme le montrent l&rsquo;ADN d&rsquo;\u00d6tzi et d&rsquo;autres peuples anciens, les modifications g\u00e9n\u00e9tiques de la couleur de la peau ont mis des milliers d&rsquo;ann\u00e9es \u00e0 devenir monnaie courante en Europe.<\/strong><\/p>\n<p>\u00ab Les peuples qui vivaient en Europe il y a 40 000 \u00e0 8 000 ans \u00e9taient aussi fonc\u00e9s que les Africains, ce qui est tout \u00e0 fait logique puisque c\u2019est d\u2019Afrique que les humains sont originaires \u00bb, explique-t-il. \u00ab Nous avons toujours pens\u00e9 que les Europ\u00e9ens devenaient plus clairs plus rapidement. Mais il semble aujourd\u2019hui que cela se soit produit assez tard dans l\u2019histoire de l\u2019humanit\u00e9. \u00bb<\/p>\n<p>Adaptation <a href=\"https:\/\/www.laterredufutur.com\/accueil\/\" target=\"_blank\" rel=\"noopener\">Terra Projects<\/a><\/p>\n<p>Source : <a href=\"https:\/\/www.sciencenews.org\/article\/new-otzi-iceman-dna-ancestry-genome\" target=\"_blank\" rel=\"noopener\">https:\/\/www.sciencenews.org\/<\/a><\/p>\n<!--CusAds0-->\n<div style=\"font-size: 0px; height: 0px; line-height: 0px; margin: 0; padding: 0; clear: both;\"><\/div>","protected":false},"excerpt":{"rendered":"<p>Un nouvel examen de l&rsquo;ADN de l&rsquo;homme des glaces r\u00e9v\u00e8le que ses anc\u00eatres n&rsquo;\u00e9taient pas ceux que les scientifiques pensaient&#8230;<\/p>\n","protected":false},"author":1,"featured_media":12951,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_exactmetrics_skip_tracking":false,"ngg_post_thumbnail":0,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[33],"tags":[954,1813,8041,251,5996,1999],"class_list":["post-26030","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-archeologie","tag-adn","tag-couleur","tag-homme-des-glaces","tag-origine","tag-otzi","tag-peau","wpcat-33-id"],"jetpack_shortlink":"https:\/\/wp.me\/p631RN-6LQ","jetpack-related-posts":[{"id":25154,"url":"https:\/\/www.laterredufutur.com\/accueil\/un-nouvel-examen-de-ladn-dotzi-lhomme-des-glaces-revele-une-nouvelle-ascendance-et-dautres-surprises\/","url_meta":{"origin":26030,"position":0},"title":"Un nouvel examen de l&rsquo;ADN d&rsquo;\u00d6tzi l&rsquo;homme des glaces r\u00e9v\u00e8le une nouvelle ascendance et d&rsquo;autres surprises","author":"Fred Demars","date":"22 ao\u00fbt 2023","format":false,"excerpt":"\u00d6tzi \u00e9tait chauve, avait la peau fonc\u00e9e et n'avait pas d'anc\u00eatres originaires de la steppe caspienne. Un nouvel examen de l'ADN de l'homme des glaces r\u00e9v\u00e8le que ses anc\u00eatres n'\u00e9taient pas ceux que les scientifiques pensaient jusqu'\u00e0 pr\u00e9sent. En 2012, les scientifiques ont dress\u00e9 un tableau complet du g\u00e9nome d'\u00d6tzi,\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie-2.jpg?fit=800%2C531&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie-2.jpg?fit=800%2C531&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie-2.jpg?fit=800%2C531&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie-2.jpg?fit=800%2C531&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":19356,"url":"https:\/\/www.laterredufutur.com\/accueil\/la-lignee-de-lhomme-de-denisova-pourrait-representer-trois-especes-humaines\/","url_meta":{"origin":26030,"position":1},"title":"La lign\u00e9e de l&rsquo;Homme de Denisova pourrait repr\u00e9senter trois esp\u00e8ces humaines","author":"Fred Demars","date":"10 ao\u00fbt 2019","format":false,"excerpt":"Des analyses de l'ADN humain moderne sugg\u00e8rent que la lign\u00e9e de l'Homme de Denisova \u00e9tait \u00e9tonnamment diversifi\u00e9e. Il pourrait \u00eatre le dernier \u00e0 avoir pr\u00e9c\u00e9d\u00e9 l'Homo Sapiens. Il y a pr\u00e8s de dix ans, un fragment d'os de petit doigt d\u00e9couvert en Sib\u00e9rie r\u00e9v\u00e9lait aux yeux du monde entier une\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/07\/papouasie-homme.jpg?fit=1200%2C683&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/07\/papouasie-homme.jpg?fit=1200%2C683&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/07\/papouasie-homme.jpg?fit=1200%2C683&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/07\/papouasie-homme.jpg?fit=1200%2C683&ssl=1&resize=700%2C400 2x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2019\/07\/papouasie-homme.jpg?fit=1200%2C683&ssl=1&resize=1050%2C600 3x"},"classes":[]},{"id":9545,"url":"https:\/\/www.laterredufutur.com\/accueil\/ladn-ancien-revele-comment-nous-a-change\/","url_meta":{"origin":26030,"position":2},"title":"L&rsquo;ADN ancien r\u00e9v\u00e8le comment l&rsquo;agriculture nous a chang\u00e9s","author":"Fred Demars","date":"7 d\u00e9cembre 2015","format":false,"excerpt":"L'ADN ancien r\u00e9v\u00e8le comment l'agriculture a chang\u00e9 notre taille, la digestion et la couleur de la peau. Ceci est la raison pour laquelle vous pouvez boire du lait. Pour la premi\u00e8re fois, les chercheurs ont analys\u00e9\u00a0de\u00a0l'ADN ancien pr\u00e9lev\u00e9 chez des humains qui ont v\u00e9cu avant, pendant et apr\u00e8s la r\u00e9volution\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/squelette-tombe.jpg?fit=1024%2C415&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/squelette-tombe.jpg?fit=1024%2C415&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/squelette-tombe.jpg?fit=1024%2C415&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/squelette-tombe.jpg?fit=1024%2C415&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":24643,"url":"https:\/\/www.laterredufutur.com\/accueil\/decouverte-de-ladn-dune-femme-homo-sapiens-dasie-de-lest-qui-la-relie-aux-premiers-amerindiens\/","url_meta":{"origin":26030,"position":3},"title":"D\u00e9couverte de l&rsquo;ADN d&rsquo;une femme Homo sapiens d&rsquo;Asie de l&rsquo;Est qui la relie aux premiers Am\u00e9rindiens","author":"Fred Demars","date":"10 janvier 2023","format":false,"excerpt":"Une population d'Homo sapiens jusqu'alors inconnue habitait ce qui est aujourd'hui le sud-ouest de la Chine il y a environ 14 000 ans et a contribu\u00e9 \u00e0 l'ascendance des anciens Am\u00e9rindiens. L'identit\u00e9 \u00e9volutive de ce groupe asiatique tr\u00e8s diversifi\u00e9 a \u00e9t\u00e9 r\u00e9v\u00e9l\u00e9e gr\u00e2ce \u00e0 l'ADN ancien extrait d'une calotte cr\u00e2nienne\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/01\/amerindienne.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/01\/amerindienne.jpg?fit=1000%2C1000&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/01\/amerindienne.jpg?fit=1000%2C1000&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2023\/01\/amerindienne.jpg?fit=1000%2C1000&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":25316,"url":"https:\/\/www.laterredufutur.com\/accueil\/une-lignee-humaine-inconnue-enfouie-dans-le-genome-de-neandertal\/","url_meta":{"origin":26030,"position":4},"title":"Une lign\u00e9e humaine inconnue enfouie dans le g\u00e9nome de Neandertal","author":"Fred Demars","date":"27 octobre 2023","format":false,"excerpt":"Lorsque l'Homo sapiens a migr\u00e9 en Eurasie il y a plus de 70 000 ans, une grande partie du continent \u00e9tait d\u00e9j\u00e0 habit\u00e9e par les N\u00e9andertaliens, des hominiens qui partageaient un anc\u00eatre avec nous mais qui avaient pass\u00e9 environ un demi-million d'ann\u00e9es \u00e0 diverger. Nous ne savons pas grand-chose de\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/ao-neandertal.png?fit=979%2C768&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/ao-neandertal.png?fit=979%2C768&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/ao-neandertal.png?fit=979%2C768&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/ao-neandertal.png?fit=979%2C768&ssl=1&resize=700%2C400 2x"},"classes":[]},{"id":9518,"url":"https:\/\/www.laterredufutur.com\/accueil\/ladam-scientifique\/","url_meta":{"origin":26030,"position":5},"title":"L&rsquo;Adam Scientifique","author":"Fred Demars","date":"5 d\u00e9cembre 2015","format":false,"excerpt":"Au c\u0153ur d'un d\u00e9bat entre Science moderne et R\u00e9v\u00e9lation religieuse,\u00a0\"Adam aurait-il r\u00e9ellement exist\u00e9 ?\". Puisque la technologie moderne nous permet de trancher quotidiennement de mani\u00e8re scientifiquement irr\u00e9futable dans des conflits mettant en cause des pi\u00e8ces \u00e0 conviction de type ADN. Puisque la technologie de l'ADN nous permet d\u00e9sormais ces v\u00e9rifications,\u2026","rel":"","context":"Dans &quot;Arch\u00e9ologie&quot;","block_context":{"text":"Arch\u00e9ologie","link":"https:\/\/www.laterredufutur.com\/accueil\/sujets\/archeologie\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/adn.jpg?fit=800%2C587&ssl=1&resize=350%2C200","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/adn.jpg?fit=800%2C587&ssl=1&resize=350%2C200 1x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/adn.jpg?fit=800%2C587&ssl=1&resize=525%2C300 1.5x, https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2015\/11\/adn.jpg?fit=800%2C587&ssl=1&resize=700%2C400 2x"},"classes":[]}],"jetpack_sharing_enabled":true,"jetpack_featured_media_url":"https:\/\/i0.wp.com\/www.laterredufutur.com\/accueil\/wp-content\/uploads\/2016\/07\/%C3%96tzi-momie-3.jpg?fit=1096%2C1400&ssl=1","_links":{"self":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26030","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/comments?post=26030"}],"version-history":[{"count":2,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26030\/revisions"}],"predecessor-version":[{"id":26032,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/posts\/26030\/revisions\/26032"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media\/12951"}],"wp:attachment":[{"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/media?parent=26030"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/categories?post=26030"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.laterredufutur.com\/accueil\/wp-json\/wp\/v2\/tags?post=26030"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}