{"id":59485,"date":"2026-03-29T21:10:07","date_gmt":"2026-03-29T21:10:07","guid":{"rendered":"https:\/\/www.europesays.com\/be-fr\/59485\/"},"modified":"2026-03-29T21:10:07","modified_gmt":"2026-03-29T21:10:07","slug":"les-koalas-dejouent-les-lois-de-la-genetique","status":"publish","type":"post","link":"https:\/\/www.europesays.com\/be-fr\/59485\/","title":{"rendered":"Les koalas d\u00e9jouent les lois de la g\u00e9n\u00e9tique"},"content":{"rendered":"

En cause : le ph\u00e9nom\u00e8ne de recombinaison g\u00e9n\u00e9tique. \u00c0 chaque reproduction, l’ADN des parents est en effet remani\u00e9, g\u00e9n\u00e9rant de nouvelles combinaisons. Ce processus favorise la s\u00e9lection des combinaisons g\u00e9n\u00e9tiques b\u00e9n\u00e9fiques, tandis que les configurations d\u00e9favorables tendent \u00e0 dispara\u00eetre. Ce brassage permet alors de faire \u00e9merger progressivement de nouvelles variantes g\u00e9n\u00e9tiques plus adapt\u00e9es \u00e0 la survie de la population.<\/p>\n

\u00ab\u00a0Ils risquent d’\u00eatre un peu perdus\u00a0\u00bb : apr\u00e8s d’importantes inondations, les crocodiles envahissent le nord de l’Australie<\/a><\/p>\n

De quoi, donc, redonner espoir pour certaines esp\u00e8ces qui, m\u00eame en cas de forte diminution, pourraient ne pas automatiquement \u00eatre vou\u00e9es \u00e0 dispara\u00eetre faute de diversit\u00e9 g\u00e9n\u00e9tique. Pour autant, du moins, que les facteurs \u00e0 l’origine de cette diminution drastique soient combattus. On songe au gu\u00e9pard, longtemps consid\u00e9r\u00e9 comme g\u00e9n\u00e9tiquement vuln\u00e9rable, ou au bison d’Europe, revenu d’un quasi-effondrement au XXe si\u00e8cle.<\/p>\n","protected":false},"excerpt":{"rendered":"En cause : le ph\u00e9nom\u00e8ne de recombinaison g\u00e9n\u00e9tique. \u00c0 chaque reproduction, l’ADN des parents est en effet remani\u00e9,…\n","protected":false},"author":2,"featured_media":59486,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[12,13,18,17,25156,25160,25161,25164,12053,31,25166,25165,25157,25159,7803,25158,25163,25162,32],"class_list":{"0":"post-59485","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-international","8":"tag-be","9":"tag-be-fr","10":"tag-belgique","11":"tag-belgium","12":"tag-bruxelles-proprete","13":"tag-camion-poubelle","14":"tag-canettes","15":"tag-cartons","16":"tag-dechets","17":"tag-international","18":"tag-ordures","19":"tag-papiers","20":"tag-pmc","21":"tag-poubelles","22":"tag-recyclage","23":"tag-recyclis","24":"tag-tri","25":"tag-tri-des-dechets","26":"tag-world-news"},"share_on_mastodon":{"url":"https:\/\/pubeurope.com\/@be_fr\/116314519787829586","error":""},"_links":{"self":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/59485","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/comments?post=59485"}],"version-history":[{"count":0,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/posts\/59485\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media\/59486"}],"wp:attachment":[{"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/media?parent=59485"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/categories?post=59485"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.europesays.com\/be-fr\/wp-json\/wp\/v2\/tags?post=59485"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}