{"id":7525,"date":"2015-06-15T00:01:57","date_gmt":"2015-06-14T22:01:57","guid":{"rendered":"https:\/\/sciencetonnante.wordpress.com\/?p=7525"},"modified":"2021-02-12T08:42:42","modified_gmt":"2021-02-12T07:42:42","slug":"lintolerance-au-lactose-est-elle-une-maladie-video","status":"publish","type":"post","link":"https:\/\/scienceetonnante.com\/blog\/2015\/06\/15\/lintolerance-au-lactose-est-elle-une-maladie-video\/","title":{"rendered":"L&rsquo;intol\u00e9rance au lactose est-elle une maladie ? [Vid\u00e9o]"},"content":{"rendered":"<p>La vid\u00e9o du jour nous parle de l&rsquo;\u00e9tonnante histoire g\u00e9n\u00e9tique de l&rsquo;intol\u00e9rance au lactose.<\/p>\n<p><iframe title=\"L&#039;intol\u00e9rance au lactose est-elle une maladie ?\" width=\"770\" height=\"433\" data-src=\"https:\/\/www.youtube.com\/embed\/nv44xCo24rg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe><\/p>\n<p>Je profite de ce billet pour revenir plus en d\u00e9tail sur le cas de la carte de la tol\u00e9rance, que je vous remets ci-dessous.<\/p>\n<p><a href=\"https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2015\/06\/06-carte.png\"><img decoding=\"async\" class=\"aligncenter size-large wp-image-7526 lazyload\" data-src=\"https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2015\/06\/06-carte.png?w=600\" alt=\"06-carte\" width=\"600\" height=\"338\" data-srcset=\"https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2015\/06\/06-carte.png 1280w, https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2015\/06\/06-carte-300x169.png 300w, https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2015\/06\/06-carte-1024x576.png 1024w, https:\/\/scienceetonnante.com\/blog\/wp-content\/uploads\/2015\/06\/06-carte-768x432.png 768w\" data-sizes=\"(max-width: 600px) 100vw, 600px\" src=\"data:image\/svg+xml;base64,PHN2ZyB3aWR0aD0iMSIgaGVpZ2h0PSIxIiB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciPjwvc3ZnPg==\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/338;\" \/><\/a><\/p>\n<p><!--more--><\/p>\n<p>J&rsquo;ai pris cette carte dans la publication cit\u00e9e en r\u00e9f\u00e9rence [1], et il faut savoir qu&rsquo;ils l&rsquo;ont r\u00e9alis\u00e9e \u00e0 partir de donn\u00e9es publi\u00e9es ailleurs [2]. Par ailleurs la carte est une interpolation, les points noirs repr\u00e9sentant les lieux pour lesquels il existe effectivement des donn\u00e9es dans la litt\u00e9rature. Enfin l&rsquo;id\u00e9e de cette carte est de ne repr\u00e9senter que les populations \u00ab\u00a0indig\u00e8nes\u00a0\u00bb, avant les p\u00e9riodes de grandes migrations. Ce qui explique peut-\u00eatre pourquoi l&rsquo;Am\u00e9rique n&rsquo;est pas repr\u00e9sent\u00e9e : ce serait possible mais je ne sais pas s&rsquo;il y a des donn\u00e9es; mais surtout ce serait trompeur puisque la carte ne serait valable que pour les populations natives, qui sont minoritaires en Am\u00e9rique.<\/p>\n<p>D&rsquo;ailleurs dans le m\u00eame genre, il y a vraisemblablement une erreur en Nouvelle-Z\u00e9lande. Les auteurs ont d\u00fb prendre des valeurs de descendants d&rsquo;europ\u00e9ens, ce qui par l&rsquo;effet de l&rsquo;interpolation rend cette zone \u00ab\u00a0verte\u00a0\u00bb ainsi que le sud-est de l&rsquo;Australie.<\/p>\n<p>&nbsp;<\/p>\n<p><em>[1] Gerbault, Pascale, et al. \u00ab\u00a0<a href=\"http:\/\/biology.westfield.ma.edu\/Biol203\/sites\/default\/files\/GerbaultEtAl2008.pdf\" target=\"_blank\" rel=\"noopener\">Evolution of lactase persistence: an example of human niche construction.<\/a>\u00a0\u00bb Philosophical Transactions of the Royal Society B: Biological Sciences 366.1566 (2011): 863-877.<\/em><\/p>\n<p><em>[2] Ingram, Catherine JE, et al. \u00ab\u00a0<a href=\"http:\/\/web.mit.edu\/~aksarkar\/p\/annurev%252Egenet%252E37%252E110801%252E143820.pdf\" target=\"_blank\" rel=\"noopener\">Lactose digestion and the evolutionary genetics of lactase persistence<\/a>.\u00a0\u00bb Human genetics 124.6 (2009): 579-591. La table contenant les donn\u00e9es brutes est <a href=\"http:\/\/link.springer.com\/content\/esm\/art:10.1007\/s00439-008-0593-6\/file\/MediaObjects\/439_2008_593_MOESM4_ESM.pdf\" target=\"_blank\" rel=\"noopener\">disponible ici<\/a>.<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>La vid\u00e9o du jour nous parle de l&rsquo;\u00e9tonnante histoire g\u00e9n\u00e9tique de l&rsquo;intol\u00e9rance au lactose. Je profite de ce billet pour revenir plus en d\u00e9tail sur le cas de la carte de la tol\u00e9rance, que je vous remets ci-dessous.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[7],"tags":[35],"class_list":{"0":"post-7525","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-biologie","7":"tag-genetique"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/7525","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/comments?post=7525"}],"version-history":[{"count":1,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/7525\/revisions"}],"predecessor-version":[{"id":9161,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/posts\/7525\/revisions\/9161"}],"wp:attachment":[{"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/media?parent=7525"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/categories?post=7525"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/scienceetonnante.com\/blog\/wp-json\/wp\/v2\/tags?post=7525"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}