{"id":2651,"date":"2014-07-30T15:30:50","date_gmt":"2014-07-30T20:30:50","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=2651"},"modified":"2014-08-02T15:35:32","modified_gmt":"2014-08-02T20:35:32","slug":"du-sperme-tueur-empeche-des-vers-de-differentes-especes-de-saccoupler","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/du-sperme-tueur-empeche-des-vers-de-differentes-especes-de-saccoupler\/","title":{"rendered":"Du \u00ab sperme tueur \u00bb emp\u00eache des vers de diff\u00e9rentes esp\u00e8ces de s&#8217;accoupler <img src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/01\/canada_flag_icon_small.gif\">"},"content":{"rendered":"<div id=\"attachment_2587\" style=\"width: 310px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/sperm.jpg\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2587\" class=\"wp-image-2587 size-medium\" src=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/sperm-300x188.jpg\" alt=\"This image depicts an instance of cross-species breeding gone awry. Fluorescence microscopy reveals sperm, in red, invading a female worm's body. (Photo credit: Gavin Woodruff)\" width=\"300\" height=\"188\" srcset=\"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/sperm-300x188.jpg 300w, http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/sperm.jpg 623w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-2587\" class=\"wp-caption-text\">Sur cette image de microscopie en fluorescence, le sperme d\u2019une esp\u00e8ce de ver envahit le corps d\u2019une femelle d\u2019une autre esp\u00e8ce. (Cr\u00e9dit: Gavin Woodruff)<\/p><\/div>\n<p><span style=\"color: #000000;\">Une nouvelle recherche montre que chez les vers du genre <\/span><span style=\"font-style: italic; color: #000000;\">Caenorhabditis<\/span><span style=\"color: #000000;\">, le sperme peut s\u2019attaquer aux organes d\u2019une femelle d\u2019une autre esp\u00e8ce, la rendre st\u00e9rile et m\u00eame la tuer. <\/span><\/p>\n<p><span style=\"color: #000000;\">Par exemple, les vers hermaphrodites, qui produisent \u00e0 la fois son sperme et ses oeufs pour se reproduire, sont particuli\u00e8rement sensibles \u00e0 devenir st\u00e9rile et \u00e0 mourir s\u2019ils s\u2019accouplent avec des m\u00e2les d\u2019autres esp\u00e8ces. Les auteurs expliquent que l\u2019ut\u00e9rus des vers hermaphrodite aurait \u00e9volu\u00e9 pour tol\u00e9rer du sperme moins agressif, et non le sperme plus actif des esp\u00e8ces non hermaphrodites.<\/span><\/p>\n<p>Pour lire l\u2019article original publi\u00e9 dans\u00a0<em>PLOS Biology<span style=\"color: #000000;\">\u00a0<\/span><\/em>le\u00a0<strong>29 juillet\u00a0<\/strong><strong>2014,\u00a0<\/strong><span style=\"text-decoration: underline;\"><a href=\"http:\/\/www.plosbiology.org\/article\/info:doi\/10.1371\/journal.pbio.1001915\" target=\"_blank\">cliquez ici<\/a><\/span>.<\/p>\n<p><span style=\"text-decoration: underline;\"><em><strong>Auteur \u00e0 contacter pour plus d\u2019informations<\/strong><\/em><\/span><\/p>\n<h4>Asher D. Cutter, Chaire de recherche du Canada en g\u00e9nomique \u00e9volutionniste, Universit\u00e9 de Toronto, Ontario<\/h4>\n","protected":false},"excerpt":{"rendered":"<p>Une nouvelle recherche montre que chez les vers du genre Caenorhabditis, le sperme peut s\u2019attaquer aux organes d\u2019une femelle d\u2019une autre esp\u00e8ce, la rendre st\u00e9rile et m\u00eame la tuer. Par exemple, les vers hermaphrodites, qui produisent \u00e0 la fois son sperme et ses oeufs pour se reproduire, sont particuli\u00e8rement sensibles \u00e0 devenir st\u00e9rile et \u00e0 [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":2587,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_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":[531],"tags":[235,1323,66,919,910,1308],"class_list":["post-2651","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest-fr","tag-animaux","tag-biodiversite","tag-biologie","tag-evolution-fr","tag-genetique","tag-reproduction-fr"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/07\/sperm.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-GL","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2651","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/comments?post=2651"}],"version-history":[{"count":1,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2651\/revisions"}],"predecessor-version":[{"id":2652,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2651\/revisions\/2652"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/2587"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=2651"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=2651"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=2651"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}