{"id":2297,"date":"2019-06-14T14:24:18","date_gmt":"2019-06-14T12:24:18","guid":{"rendered":"http:\/\/agora.xtec.cat\/iesducdemontblanc\/?p=2297"},"modified":"2019-06-14T14:29:03","modified_gmt":"2019-06-14T12:29:03","slug":"la-millora-genetica-assistida-per-marcadors","status":"publish","type":"post","link":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/batxillerat\/la-millora-genetica-assistida-per-marcadors\/","title":{"rendered":"La millora gen\u00e8tica assistida per marcadors"},"content":{"rendered":"

Amb l\u2019arribada de l\u2019estiu, les s\u00edndries reapareixen a la nostra taula, per\u00f2… us heu fixat que ja quasi no tenen grans (llavors)? El mateix podem dir de les taronges i cogombres, entre altres. De fet, nom\u00e9s mengem pl\u00e0tans sense llavors o amb aquestes molt petites (els puntets negres).<\/p>\n

S\u00f3n transg\u00e8niques, aquestes fruites? Doncs no.<\/p>\n

Tampoc ho s\u00f3n la nectarina, el pr\u00e9ssec pla (en castell\u00e0 , paraguayo) o el tom\u00e0quet cherry. Tots aquests s\u2019obtenen gr\u00e0cies a t\u00e8cniques de millora gen\u00e8tica . A Espanya nom\u00e9s es poden conrear 4 esp\u00e8cies transg\u00e8niques i , excepte el blat de moro, la resta \u00e9s nom\u00e9s per alimentaci\u00f3 animal. No es poden produir i conrear noves varietats transg\u00e8niques, per\u00f2 s\u00ed investigar sobre-hi i importar-les.<\/p>\n

Amb la intenci\u00f3 d\u2019aprofundir en aquest tema i, a fi de realitzar el seu treball de recerca, l\u2019alumna de 1r Batxillerat A Youssra Alilouch i la seva tutora van visitar el Centre de Recerca en Agrigen\u00f2mica (CRAG) a Bellaterra on investiguen la millora gen\u00e8tica assistida per marcadors.<\/p>\n

All\u00e0 ens va atendre Amparo Monfort, <\/b>investigadora de l\u2019IRTA <\/b> i la Gloria Villalba<\/b>, responsable del Servei d\u2019Hivernacles del Centre de Recerca en Agrigen\u00f2mica (CRAG) <\/span><\/span><\/span>a les quals agra\u00efm molt el temps que ens van dedicar. En la visita ens van fer una explicaci\u00f3 te\u00f2rica molt interessant sobre la seva recerca i ens van ensenyar els laboratoris i hivernacles on investiguen amb plantes transg\u00e8niques.<\/p>\n

 <\/p>\n

Gr\u00e0cies a la recerca en millora gen\u00e8tica d\u2019aquests investigadors del CRAG, els milloradors de camp poden seleccionar varietats amb les qualitats que interessen, per exemple, fruits amb molt poques llavors.<\/p>\n

De forma resumida, els milloradors de camp fan creuaments pol\u00b7linitzant plantes que tenen unes caracter\u00edstiques determinades amb plantes amb altres caracter\u00edstiques diferents . Ara b\u00e9, en comptes d\u2019esperar 5 anys a que l\u2019arbre produeixi fruits i veure qu\u00e8 surt, estudien la regi\u00f3 de l\u2019ADN responsable de les caracter\u00edstiques que busquen i una s\u00e8rie de marcadors gen\u00e8tics que indiquen que les posseeixen.<\/p>\n

<\/a> D\u2019aquesta manera, analitzant l\u2019ADN de plantes d\u2019un pam, ja es pot saber si tindran o no aquestes caracter\u00edstiques . Aix\u00f2 permet nom\u00e9s plantar aquests arbres, \u00e9s a dir seleccionar varietats estalviant temps i recursos.<\/p>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Amb l\u2019arribada de l\u2019estiu, les s\u00edndries reapareixen a la nostra taula, per\u00f2… us heu fixat que ja quasi no tenen […]<\/p>\n","protected":false},"author":5,"featured_media":2299,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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":""}},"footnotes":""},"categories":[8,29],"tags":[],"class_list":["post-2297","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-batxillerat","category-portada"],"post_mailing_queue_ids":[],"_links":{"self":[{"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/posts\/2297","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/comments?post=2297"}],"version-history":[{"count":1,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/posts\/2297\/revisions"}],"predecessor-version":[{"id":2298,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/posts\/2297\/revisions\/2298"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/media\/2299"}],"wp:attachment":[{"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/media?parent=2297"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/categories?post=2297"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agora.xtec.cat\/iesducdemontblanc\/wp-json\/wp\/v2\/tags?post=2297"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}