{"id":2011,"date":"2014-06-17T15:42:16","date_gmt":"2014-06-17T20:42:16","guid":{"rendered":"http:\/\/sciencemediacentre.ca\/site\/?p=2011"},"modified":"2014-06-18T13:03:09","modified_gmt":"2014-06-18T18:03:09","slug":"le-sexe-aide-les-puces-deau-a-resister-aux-invasions","status":"publish","type":"post","link":"http:\/\/sciencemediacentre.ca\/site\/le-sexe-aide-les-puces-deau-a-resister-aux-invasions\/","title":{"rendered":"Le sexe aide les puces d’eau \u00e0 r\u00e9sister aux invasions"},"content":{"rendered":"
\"Les<\/a>

Les puces d\u2019eau femelles peuvent se reproduire sans l\u2019aide de m\u00e2les, c\u2019est ce qu\u2019on appelle la reproduction asexu\u00e9e. (Cr\u00e9dit: Paul Hebert<\/a>)<\/p><\/div>\n

Une nouvelle \u00e9tude sur les puces d\u2019eau montre que le sexe a des b\u00e9n\u00e9fices autant au court qu\u2019au long terme. <\/span><\/p>\n

La majorit\u00e9 des populations de puces d\u2019eau n\u2019engendrent que des femelles, mais certaines d\u2019entre elles engendrent des m\u00e2les et des femelles. Les populations comptant les deux sexes et se reproduisant de mani\u00e8re sexu\u00e9e ont une plus grande diversit\u00e9 g\u00e9n\u00e9tique, mais les populations comptant uniquement des femelles produisent plus de descendants et devraient th\u00e9oriquement surpasser en nombre les populations sexu\u00e9es. <\/span><\/p>\n

Toutefois, cette \u00e9tude men\u00e9e au cours des 18 derni\u00e8res ann\u00e9es montre que ce n\u2019est pas le cas et conclut que d\u2019autres facteurs comme la proportion d\u2019oeufs conserv\u00e9s emp\u00eachent les populations asexu\u00e9es de dominer compl\u00e8tement.<\/span><\/p>\n

Pour lire l\u2019article original publi\u00e9 dans\u00a0Proceedings of the Royal Society B: Biological Sciences\u00a0<\/em>le\u00a017 juin\u00a0<\/strong>2014<\/strong>,\u00a0cliquez\u00a0ici<\/a><\/span>.<\/p>\n

Auteur \u00e0 contacter pour plus d\u2019informations<\/strong><\/em><\/span><\/p>\n

David Innes<\/a>, Universit\u00e9 Memorial, Newfoundland<\/span><\/h4>\n","protected":false},"excerpt":{"rendered":"

Une nouvelle \u00e9tude sur les puces d\u2019eau montre que le sexe a des b\u00e9n\u00e9fices autant au court qu\u2019au long terme. La majorit\u00e9 des populations de puces d\u2019eau n\u2019engendrent que des femelles, mais certaines d\u2019entre elles engendrent des m\u00e2les et des femelles. Les populations comptant les deux sexes et se reproduisant de mani\u00e8re sexu\u00e9e ont une […]<\/p>\n","protected":false},"author":3,"featured_media":2008,"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":[235,1323,66,1263,919,910,1772],"class_list":["post-2011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-paper-of-interest-fr","tag-animaux","tag-biodiversite","tag-biologie","tag-comportement-animal","tag-evolution-fr","tag-genetique","tag-newfoundland"],"jetpack_featured_media_url":"http:\/\/sciencemediacentre.ca\/site\/wp-content\/uploads\/2014\/06\/Daphnia-pulex.jpg","jetpack_shortlink":"https:\/\/wp.me\/p4DqbN-wr","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2011","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=2011"}],"version-history":[{"count":2,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2011\/revisions"}],"predecessor-version":[{"id":2022,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/posts\/2011\/revisions\/2022"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media\/2008"}],"wp:attachment":[{"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/media?parent=2011"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/categories?post=2011"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/sciencemediacentre.ca\/site\/wp-json\/wp\/v2\/tags?post=2011"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}