{"id":20384,"date":"2022-12-02T11:24:58","date_gmt":"2022-12-02T10:24:58","guid":{"rendered":"https:\/\/congopubonline.com\/?p=20384"},"modified":"2022-12-02T11:41:23","modified_gmt":"2022-12-02T10:41:23","slug":"insolite-des-photos-de-sosies-revelent-un-mystere-scientifique","status":"publish","type":"post","link":"https:\/\/congopubonline.com\/?p=20384","title":{"rendered":"Insolite : Des photos de sosies r\u00e9v\u00e8lent un myst\u00e8re scientifique"},"content":{"rendered":"\n<h3 class=\"wp-block-heading\">\u00c0 partir du travail de l\u2019artiste canadien Fran\u00e7ois Brunelle qui photographie des sosies depuis plus de 20 ans, des scientifiques ont d\u00e9montr\u00e9 que ces faux jumeaux avaient bien plus en commun qu\u2019une simple ressemblance physique.<\/h3>\n\n\n\n<p>\u00c0 l\u2019origine, c\u2019\u00e9tait un travail artistique \u00e0 la fois passionnant et troublant. Mais depuis que des scientifiques se sont pench\u00e9s dessus, il prend une tout autre dimension. Depuis 1999, le photographe canadien Fran\u00e7ois Brunelle r\u00e9alise des portraits de sosies, des personnes anonymes qui, sans aucun lien de parent\u00e9 et vivant parfois sur des continents diff\u00e9rents, pr\u00e9sentent une ressemblance extraordinaire. En plus de 20 ans, l\u2019artiste a r\u00e9uni des centaines de ces faux jumeaux, photographi\u00e9s en duo, pour son projet \u00e0 longue haleine intitul\u00e9 malicieusement \u00ab Je ne suis pas un sosie! \u00bb.<\/p>\n\n\n\n<p>Dans une \u00e9tude dirig\u00e9e par un g\u00e9n\u00e9ticien espagnol, Ricky Joshi de l\u2019Institut de recherche sur la leuc\u00e9mie Josep Carreras, \u00e0 Barcelone, ses images de sosies ont \u00e9t\u00e9 pass\u00e9es \u00e0 la moulinette d\u2019algorithmes de reconnaissance faciale afin de d\u00e9terminer les paires les plus ressemblantes, sans que la subjectivit\u00e9 de l\u2019oeil humain entre en ligne de compte. L\u2019\u00e9quipe de chercheurs a ainsi s\u00e9lectionn\u00e9 25 paires pr\u00e9sentant le plus de traits communs. Les 50 personnes figurant sur les photos ont ensuite \u00e9t\u00e9 contact\u00e9es. Il leur a \u00e9t\u00e9 soumis un questionnaire sur leur mode de vie et demand\u00e9 de fournir un \u00e9chantillon de salive. Les chercheurs ont extrait l\u2019ADN des \u00e9chantillons de salive et l\u2019ont analys\u00e9 de trois mani\u00e8res diff\u00e9rentes. Ils ont \u00ab compar\u00e9 le g\u00e9nome de chaque participant en cartographiant plus de 4,3 millions de variantes g\u00e9n\u00e9tiques, examin\u00e9 les \u00e9pig\u00e9nomes des sujets et utilis\u00e9 le s\u00e9quen\u00e7age de l\u2019ARN pour comparer leurs microbiomes \u00bb d\u00e9taillent-ils dans leur \u00e9tude publi\u00e9 par la revue&nbsp;<em>Cell Reports<\/em>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Des portraits robots \u00e0 partir de simples \u00e9chantillons d\u2019ADN ?<\/h4>\n\n\n\n<p>L\u2019\u00e9tude a r\u00e9v\u00e9l\u00e9 que 9 des 16 paires les plus ressemblantes partageaient 19 200 variantes communes sur 3 700 g\u00e8nes, sans avoir aucun anc\u00eatre commun. Plus \u00e9tonnant encore, la ressemblance de ces \u00ab super-sosies \u00bb s\u2019\u00e9tend au poids, \u00e0 la taille, au niveau d\u2019\u00e9ducation et \u00e0 des comportements tels que la consommation d\u2019alcool ou de tabac, ce qui sugg\u00e8re que leurs traits g\u00e9n\u00e9tiques communs influencent non seulement leur apparence physique mais aussi leur mode de vie.<\/p>\n\n\n\n<p>Les scientifiques estiment que ces r\u00e9sultats, dont la port\u00e9e est pour l\u2019instant limit\u00e9e par le faible nombre de participants, pourraient permettre d\u2019\u00e9tablir des portraits robots \u00e0 partir de simples \u00e9chantillons d\u2019ADN pr\u00e9lev\u00e9s sur une sc\u00e8ne de crime. Une perspective un peu moins po\u00e9tique et humaniste que le travail de Fran\u00e7ois Brunelle mais qui fera sans doute r\u00eaver toutes les polices du monde.<\/p>\n\n\n\n<p><strong>Paris Match via CONGO PUB Online <\/strong><\/p>\n<div class='epvc-post-count'><span class='epvc-eye'><\/span>  <span class=\"epvc-count\"> 446<\/span><span class='epvc-label'> Vues<\/span><\/div>","protected":false},"excerpt":{"rendered":"<p>\u00c0 partir du travail de l\u2019artiste canadien Fran\u00e7ois Brunelle qui photographie des sosies depuis plus de 20 ans, des scientifiques ont d\u00e9montr\u00e9 que ces faux jumeaux avaient bien plus en&hellip;<\/p>\n","protected":false},"author":1,"featured_media":20385,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"content-type":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[53],"tags":[1624,1623],"class_list":["post-20384","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-insolite","tag-francois-brunelle","tag-insolite"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.4 (Yoast SEO v25.4) - 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