{"id":34696,"date":"2023-03-17T11:06:53","date_gmt":"2023-03-17T10:06:53","guid":{"rendered":"https:\/\/ellipse.prbb.org\/?p=34696"},"modified":"2023-03-17T11:06:54","modified_gmt":"2023-03-17T10:06:54","slug":"jugant-amb-la-pigmentacio","status":"publish","type":"post","link":"https:\/\/ellipse.prbb.org\/ca\/jugant-amb-la-pigmentacio\/","title":{"rendered":"Jugant amb la pigmentaci\u00f3"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">L\u2019\u00fas d\u2019eines d\u2019<strong>edici\u00f3 gen\u00e8tica<\/strong> ens permeten <a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/arnau-busquets-imim-els-cientifics-som-els-primers-que-volem-el-benestar-dels-animals-si-lanimal-no-esta-be-el-resultat-no-sera-valid\/\" target=\"_blank\">modificar els organismes<\/a> i apropar-nos al coneixement del seu funcionament. I aix\u00f2 \u00e9s el que, l\u2019ara ja investigadora predoctoral del <a rel=\"noreferrer noopener\" href=\"https:\/\/www.upf.edu\/web\/biomed\" target=\"_blank\">Departament de Medicina i Ci\u00e8ncies de la Vida de la Universitat Pompeu Fabra (MELIS-UPF)<\/a>, <strong><a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/nerea-montedeoca-vazquez-melis-upf-en-el-fons-totes-les-persones-som-cientifiques-quan-som-petites\/\" target=\"_blank\"><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/nerea-montedeoca-vazquez-melis-upf-en-el-fons-totes-les-persones-som-cientifiques-quan-som-petites\/\" target=\"_blank\">Nerea Montedeoca<\/a><\/strong><\/a><\/strong> estava practicant durant el m\u00e0ster quan va fer aquesta fotografia. En ella veiem tres <strong>embrions de <a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/el-peix-zebra-una-finestra-transparent-a-la-nostra-biologia\/\" target=\"_blank\">peix zebra<\/a><\/strong> 24 hpf (hores post-fecundaci\u00f3) dins del c\u00f2rion. El de l\u2019esquerra presenta les taques de <strong>pigmentaci\u00f3<\/strong> natural que apareixen en els embrions a partir d\u2019aquest estadi. Per\u00f2 els altres dos embrions tenen menys taques, per qu\u00e8?<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a rel=\"noreferrer noopener\" href=\"https:\/\/ellipse.prbb.org\/ca\/francisco-j-m-mojica-estic-molt-orgullos-dhaver-estat-part-de-la-revolucio-de-crispr\/\" target=\"_blank\">CRISPR\/Cas9<\/a><\/strong> \u00e9s una eina que s\u2019assimila a unes tisores gen\u00e8tiques. \u00c9s capa\u00e7 de tallar i\/o introduir trossos de material gen\u00e8tic dins del genoma dels organismes. En aquest cas, quan la Nerea injectava aquest complex, <strong>eliminava el gen de la tirosinasa<\/strong>, l\u2019enzim encarregat de la s\u00edntesi de la pigmentaci\u00f3. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En el cas de l\u2019embri\u00f3 del mig, presenta un patr\u00f3 en forma de mosaic perqu\u00e8 encara conserva pigmentaci\u00f3. Per\u00f2 el de la dreta, \u00e9s un <em><strong>knockout <\/strong><\/em>complet pel gen de la tirosinasa &#8211; \u00e9s a dir aquest gen est\u00e0 inhibit en tot l&#8217;organisme &#8211; cosa que fa que no produeixi pigment i sigui totalment transparent.<\/p>\n\n\n\n<div style=\"height:23px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-text-color has-cyan-bluish-gray-color wp-block-paragraph\">Vols veure la teva foto aqu\u00ed? Envia\u2019ns imatges relacionades amb la ci\u00e8ncia o la vida al PRBB a&nbsp;<a rel=\"noreferrer noopener\" href=\"mailto:ellipse@prbb.org\" target=\"_blank\">ellipse@prbb.org.<\/a><\/p>\n\n\n\n<div style=\"height:46px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n","protected":false},"excerpt":{"rendered":"<p>L\u2019\u00fas d\u2019eines d\u2019edici\u00f3 gen\u00e8tica ens permeten modificar els organismes i apropar-nos al coneixement del seu funcionament. I aix\u00f2 \u00e9s el que, l\u2019ara ja investigadora predoctoral del Departament de Medicina i Ci\u00e8ncies de la Vida de la Universitat Pompeu Fabra (MELIS-UPF), Nerea Montedeoca estava practicant durant el m\u00e0ster quan va fer aquesta fotografia. En ella veiem [&hellip;]<\/p>\n","protected":false},"author":6,"featured_media":34701,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[26,4],"tags":[277,686,273,247],"new-type":[40,16],"class_list":["post-34696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-recerca","category-research","tag-desenvolupament","tag-embrio","tag-melis-upf-ca","tag-peix-zebra","new-type-foto-de-la-setmana","new-type-photo-of-the-week"],"acf":[],"_links":{"self":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/34696","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/comments?post=34696"}],"version-history":[{"count":11,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/34696\/revisions"}],"predecessor-version":[{"id":35730,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/34696\/revisions\/35730"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media\/34701"}],"wp:attachment":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media?parent=34696"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/categories?post=34696"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/tags?post=34696"},{"taxonomy":"new-type","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/new-type?post=34696"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}