{"id":13547,"date":"2021-06-21T17:09:06","date_gmt":"2021-06-21T16:09:06","guid":{"rendered":"https:\/\/www.egce.universite-paris-saclay.fr\/?p=13547"},"modified":"2021-06-21T17:09:06","modified_gmt":"2021-06-21T16:09:06","slug":"jean-david-nous-a-quitte","status":"publish","type":"post","link":"https:\/\/www.egce.universite-paris-saclay.fr\/?p=13547","title":{"rendered":"Jean David nous a quitt\u00e9s."},"content":{"rendered":"\n<p>Jean R. David (1931-2021)<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/www.egce.universite-paris-saclay.fr\/wp-content\/uploads\/2021\/06\/IMG_20170419_110359exp.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.egce.universite-paris-saclay.fr\/wp-content\/uploads\/2021\/06\/IMG_20170419_110359exp-1024x768.jpg\" alt=\"\" class=\"wp-image-13554\" width=\"423\" height=\"317\"\/><\/a><\/figure>\n\n\n\n<p><br \/>Jean David, directeur de recherche au CNRS, s\u2019est \u00e9teint le 19 juin 2021 \u00e0 l\u2019\u00e2ge de 90 ans.<\/p>\n\n\n\n<p>Jean fut l\u2019un des derniers membres actifs de cette g\u00e9n\u00e9ration de chercheurs fran\u00e7ais qui ont fait de&nbsp;<em>Drosophila melanogaster<\/em>&nbsp;un mod\u00e8le de la g\u00e9n\u00e9tique \u00e9volutive dans les ann\u00e9es 70\/80. Il a ainsi contribu\u00e9 \u00e0 offrir une opportunit\u00e9 singuli\u00e8re d&rsquo;\u00e9tendre les connaissances accumul\u00e9es sur la g\u00e9n\u00e9tique et le d\u00e9veloppement de cette esp\u00e8ce \u00e0 l&rsquo;\u00e9tude des m\u00e9canismes de l\u2019adaptation et de la sp\u00e9ciation.<\/p>\n\n\n\n<p>Jean a \u00e9t\u00e9 recrut\u00e9 en tant que pr\u00e9parateur au laboratoire de zoologie \u00e0 l\u2019Universit\u00e9 de Lyon au d\u00e9but des ann\u00e9es 50. Il a effectu\u00e9 son doctorat sous la direction de Victor Nigon sur les effets du milieu de nutrition sur la variabilit\u00e9 ph\u00e9notypique chez&nbsp;<em>D. melanogaster<\/em>. Apr\u00e8s un court s\u00e9jour en Ecosse, Jean est devenu professeur de biologie \u00e0 Lyon, o\u00f9 il a fond\u00e9 une \u00e9quipe \u00ab\u00a0Entomologie Exp\u00e9rimentale et G\u00e9n\u00e9tique\u201d&nbsp;(qui a rejoint ensuite l\u2019UMR5558). Au d\u00e9but des ann\u00e9es 70, il a collabor\u00e9 avec plusieurs chercheurs \u00e0 Gif-sur-Yvette et au Mus\u00e9um National d\u2019Histoire Naturelle sur l\u2019\u00e9tude de la faune afrotropicale des Drosophilidae.&nbsp;<\/p>\n\n\n\n<p>Suite au d\u00e9c\u00e8s de Charles Bocquet en 1977, alors directeur du laboratoire \u00ab Biologie et G\u00e9n\u00e9tique Evolutives \u00bb de Gif-sur-Yvette (l\u2019actuel UMR9191), Jean d\u00e9missionne de l\u2019Universit\u00e9 de Lyon et prend la direction de cette unit\u00e9 de 1978 \u00e0 1992. C\u2019est durant cette p\u00e9riode que ce laboratoire deviendra un \u00ab centre d\u2019excellence \u00bb de renomm\u00e9e internationale en g\u00e9n\u00e9tique \u00e9volutive de la drosophile. Jean prendra sa retraite en 1996 mais continuera \u00e0 travailler \u00e0 Gif-sur-Yvette en tant que chercheur \u00e9m\u00e9rite jusqu\u2019\u00e0 ce qu\u2019en octobre 2020, la maladie l\u2019emp\u00eache de poursuivre ses exp\u00e9riences, souvent pionni\u00e8res sur sa grande collection de drosophiles.<\/p>\n\n\n\n<p>Tout au long de sa carri\u00e8re scientifique qui a dur\u00e9 presque 70 ans, Jean a publi\u00e9 plus de 400 articles pour la plupart sur la drosophile, traitant de sujets aussi divers que la syst\u00e9matique, la biog\u00e9ographie, l\u2019\u00e9cophysiologie, la morphom\u00e9trie, la plasticit\u00e9 ph\u00e9notypique, la g\u00e9n\u00e9tique, le comportement, l\u2019isolement reproducteur et plus r\u00e9cemment encore l\u2019\u00e9vo-d\u00e9vo et la g\u00e9nomique.<\/p>\n\n\n\n<p>Grand voyageur, Jean a parcouru le monde pour l\u2019\u00e9tude des drosophiles. Il a c\u00e9l\u00e9br\u00e9 son 80<sup class=\"\">e<\/sup>&nbsp;anniversaire \u00e0 bord du Marion Dufresnes durant une exploration des \u00celes Eparses et il effectua sa derni\u00e8re mission de terrain, \u00e0 l\u2019\u00e2ge de 87 ans, sur l\u2019\u00eele de la Grande Comore.<\/p>\n\n\n\n<p>Naturaliste et entomologiste hors pair, exp\u00e9rimentateur d&rsquo;exception, scientifique rigoureux et intransigeant, impliqu\u00e9 dans les instances scientifiques nationales (CNU, Comit\u00e9 national, INRAE), Jean a su transmettre son enthousiasme \u00e0 ses \u00e9l\u00e8ves et a dirig\u00e9 de nombreuses th\u00e8ses. Plusieurs de ses \u00e9tudiantes et \u00e9tudiants ont poursuivi de fructueuses carri\u00e8res scientifiques en France et \u00e0 l\u2019\u00e9tranger. Il \u00e9tait \u00e9galement reconnu internationalement que ce soit aux \u00c9tats-Unis ou en Europe mais \u00e9galement en Afrique, en Inde ou au Br\u00e9sil o\u00f9 il se rendait encore r\u00e9guli\u00e8rement.Ses anciens \u00e9l\u00e8ves et ses coll\u00e8gues, fiers d\u2019avoir travaill\u00e9 avec lui, n\u2019oublieront pas ce qu\u2019ils lui doivent et regrettent profond\u00e9ment ce grand scientifique qui fut leur ami. Ils s&rsquo;associent pour exprimer leur profonde tristesse et t\u00e9moigner leur sympathie \u00e0 sa famille et ses proches.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Jean R. David (1931-2021) Jean David, directeur de recherche au CNRS, s\u2019est \u00e9teint le 19 juin 2021 \u00e0 l\u2019\u00e2ge de 90 ans. Jean fut l\u2019un des derniers membres actifs de cette g\u00e9n\u00e9ration de chercheurs fran\u00e7ais qui ont fait de&nbsp;Drosophila melanogaster&nbsp;un mod\u00e8le de la g\u00e9n\u00e9tique \u00e9volutive dans les ann\u00e9es 70\/80. Il a ainsi contribu\u00e9 \u00e0 offrir [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_themeisle_gutenberg_block_has_review":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[8],"tags":[],"class_list":["post-13547","post","type-post","status-publish","format-standard","hentry","category-nouvelles"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=\/wp\/v2\/posts\/13547","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=13547"}],"version-history":[{"count":0,"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=\/wp\/v2\/posts\/13547\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=13547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=13547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.egce.universite-paris-saclay.fr\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=13547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}