{"id":42094,"date":"2020-11-16T11:00:45","date_gmt":"2020-11-16T09:00:45","guid":{"rendered":"https:\/\/www.bioecoactual.com\/?p=42094"},"modified":"2022-12-28T17:31:22","modified_gmt":"2022-12-28T16:31:22","slug":"crispr-nova-polemica-tecnica-denginyeria-genetica","status":"publish","type":"post","link":"https:\/\/www.bioecoactual.com\/ca\/2020\/11\/16\/crispr-nova-polemica-tecnica-denginyeria-genetica\/","title":{"rendered":"CRISPR: una nova i pol\u00e8mica t\u00e8cnica d&#8217;enginyeria gen\u00e8tica"},"content":{"rendered":"<p>El debat sobre el cultiu i comercialitzaci\u00f3 de productes transg\u00e8nics es decanta de manera clara a Europa a favor dels consumidors -amb el suport per la gran majoria de pa\u00efsos- que rebutgen aquests productes per considerar-los innecessaris i potencialment perillosos per al medi ambient i la salut humana. Per\u00f2 la <strong>nova t\u00e8cnica d&#8217;enginyeria gen\u00e8tica CRISPR<\/strong> mant\u00e9 el debat ben obert.<\/p>\n<p><!--more--><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-42084 size-full\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISP.jpg\" alt=\"CRISPR: una nova i pol\u00e8mica t\u00e8cnica d'enginyeria gen\u00e8tica\" width=\"1000\" height=\"667\" srcset=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISP.jpg 1000w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISP-768x512.jpg 768w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISP-696x464.jpg 696w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISP-630x420.jpg 630w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>Aquests factors, entre d&#8217;altres, expliquen que la <strong>Uni\u00f3 Europea<\/strong> mantingui un nombre molt limitat d&#8217;autoritzacions per a varietats transg\u00e8niques (aplicant una morat\u00f2ria <em>de facto<\/em> per a les peticions de legalitzaci\u00f3 en tr\u00e0mit) i apliqui una regulaci\u00f3 relativament estricta sobre la tra\u00e7abilitat i pres\u00e8ncia de transg\u00e8nics en pinsos i productes de consum hum\u00e0.<\/p>\n<p>Una part de la ind\u00fastria agroaliment\u00e0ria i alguns dels cient\u00edfics que treballen en aquest camp de la biotecnologia, per\u00f2, insisteixen a defensar l&#8217;enginyeria gen\u00e8tica, i els transg\u00e8nics en particular, com a f\u00f3rmula per incrementar la producci\u00f3 d&#8217;aliments i els beneficis econ\u00f2mics del sector.<\/p>\n<h2>CRISPR<\/h2>\n<p>En els \u00faltims anys, el debat s&#8217;ha ampliat amb l&#8217;arribada de la t\u00e8cnica d&#8217;enginyeria gen\u00e8tica coneguda com CRISPR \/ Cas, un sistema innovador -amb tot just dues d\u00e8cades de vida- pel que es pot modificar de forma relativament senzilla alguns dels gens de les c\u00e8l\u00b7lules de qualsevol \u00e9sser viu.<\/p>\n<h3>Defensors de la t\u00e8cnica CRISPR<\/h3>\n<p>Els defensors d&#8217;aquesta nova t\u00e8cnica asseguren que, aplicada al sector agroalimentari, la CRISPR \/ Cas pot suposar grans beneficis i que els productes resultants, segons la seva explicaci\u00f3, no han de ser considerats transg\u00e8nics ja que no s&#8217;hi ha introdu\u00eft cap gen o fragment de ADN ali\u00e8 a l&#8217;organisme original.<\/p>\n<p>En aquest sentit, els defensors d&#8217;aquesta t\u00e8cnica han posat en marxa diverses iniciatives perqu\u00e8 la <strong>Uni\u00f3 Europea<\/strong> autoritzi en el futur les varietats agroaliment\u00e0ries que es puguin desenvolupar amb ella sense haver de sotmetre-les a l&#8217;actual regulaci\u00f3 europea sobre transg\u00e8nics.<\/p>\n<p>Un dels arguments d&#8217;aquests sectors \u00e9s que els vegetals que es puguin produir amb la CRISPR \/ Cas seran gen\u00e8ticament iguals als originals o, com a m\u00ednim, no es podran detectar les difer\u00e8ncies amb t\u00e8cniques d&#8217;an\u00e0lisi d&#8217;\u00fas com\u00fa.<\/p>\n<figure id=\"attachment_42087\" aria-describedby=\"caption-attachment-42087\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-42087 size-full\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-2.jpg\" alt=\"Els vegetals que es puguin produir amb la CRISPR\" width=\"1000\" height=\"500\" srcset=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-2.jpg 1000w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-2-768x384.jpg 768w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-2-696x348.jpg 696w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-2-840x420.jpg 840w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><figcaption id=\"caption-attachment-42087\" class=\"wp-caption-text\">Seq\u00fc\u00e8ncia del genoma, investigaci\u00f3, concepte d&#8217;enginyeria gen\u00e8tica<\/figcaption><\/figure>\n<h3>Contraris a la t\u00e8cnica CRISPR<\/h3>\n<p>Per contra, diverses organitzacions ecologistes, de consumidors i de defensa de la producci\u00f3 ecol\u00f2gica consideren que la CRISPR \/ Cas \u00e9s un <strong>cavall de Troia de l&#8217;enginyeria gen\u00e8tica<\/strong>, \u00e9s a dir, un nou sistema per introduir cultius manipulats gen\u00e8ticament en benefici de les grans ind\u00fastries agroaliment\u00e0ries.<\/p>\n<p>El debat ha deixat de ser merament te\u00f2ric perqu\u00e8 aquest mateix any l&#8217;empresa <strong><em>Cibus<\/em><\/strong> ha anunciat el desenvolupament (sota la marca Falco\u2122) del seu primer producte comercial amb aquest tipus de t\u00e8cniques, (la CRISPR \/ Cas \u00e9s una d&#8217;elles per\u00f2 n\u2019hi ha<\/p>\n<p>d\u2019altres). La llista de nous vegetals o varietats generades amb nous m\u00e8todes d&#8217;enginyeria gen\u00e8tica comen\u00e7a a ser \u00e0mplia i els <strong>Estats Units<\/strong> no sembla tenir cap inconvenient a facilitar la seva comercialitzaci\u00f3.<\/p>\n<blockquote><p>Diverses organitzacions ecologistes, de consumidors i de defensa de la producci\u00f3 ecol\u00f2gica consideren que la CRISPR \/ Cas \u00e9s un cavall de Troia de l&#8217;enginyeria gen\u00e8tica<\/p><\/blockquote>\n<h3>Un m\u00e8tode per descobrir els vegetals CRISPR<\/h3>\n<p>L&#8217;argument a favor dels CRISPR que es pret\u00e9n utilitzar a Europa que apunta a la impossibilitat de distingir anal\u00edticament els productes generats amb aquest tipus de t\u00e8cniques podria quedar desmuntat despr\u00e9s que aquest mes de setembre la revista <strong><em>Foods<\/em><\/strong> (del grup editorial MDPI, especialitzat en publicacions t\u00e8cniques i cient\u00edfiques d&#8217;acc\u00e9s obert) hagi publicat un estudi signat per especialistes dels <strong>Estats Units<\/strong> i <strong>Nova Zelanda<\/strong> en el qual es descriu <strong>un m\u00e8tode de detecci\u00f3 i quantificaci\u00f3 en temps real<\/strong> del primer vegetal comercialitzat en qu\u00e8 s&#8217;ha fet servir l&#8217;edici\u00f3 gen\u00e8tica (en aquest cas la canola o colza de l&#8217;empresa Cibus).<br \/>\nL&#8217;equip autor d&#8217;aquesta investigaci\u00f3 est\u00e0 liderat per <strong><em>John Fagan<\/em><\/strong>, del <strong><em>Health Research Institute<\/em><\/strong>, a Fairfield (Estats Units), una entitat privada amb laboratoris propis -registrada com a organitzaci\u00f3 sense \u00e0nim de lucre- especialitzada en investigacions cient\u00edfiques i anal\u00edtica avan\u00e7ada per a &#8220;la detecci\u00f3 i quantificaci\u00f3 de subst\u00e0ncies presents en els aliments, l&#8217;aigua, el s\u00f2l i fins i tot el cos hum\u00e0&#8221;, segons indica aquest institut a la seva p\u00e0gina a internet.<\/p>\n<p><strong><em>Greenpeace<\/em><\/strong> i altres oeneg\u00e9s i associacions de productors i distribu\u00efdors d&#8217;aliments no transg\u00e8nics han celebrat la publicaci\u00f3 d&#8217;aquesta investigaci\u00f3 destacant que el seu resultat &#8220;refuta les afirmacions de la ind\u00fastria biotecnol\u00f2gica i alguns reguladors que els nous cultius modificats gen\u00e8ticament (MG) dissenyats amb edici\u00f3 gen\u00e8tica no es poden distingir de cultius similars no MG i, per tant, no poden ser regulats&#8221;.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-42090 size-full\" src=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-3.jpg\" alt=\"\" width=\"1000\" height=\"668\" srcset=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-3.jpg 1000w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-3-768x513.jpg 768w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-3-696x465.jpg 696w, https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/11\/CRISPR-3-629x420.jpg 629w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/p>\n<p>El sistema que ara es presenta, &#8220;permet als pa\u00efsos de la Uni\u00f3 Europea (UE) realitzar controls per evitar que aquest cultiu transg\u00e8nic no autoritzat [a la UE] entri il\u00b7legalment a les cadenes de subministrament d&#8217;aliments i pinsos de la UE, destaca Greenpeace recordant que &#8220;fins ara, els pa\u00efsos de la UE no podien testar les seves importacions per detectar la pres\u00e8ncia d&#8217;aquesta colza&#8221;.<\/p>\n<p>Segons l&#8217;organitzaci\u00f3 ecologista, &#8220;el nou m\u00e8tode tamb\u00e9 permet a les empreses aliment\u00e0ries, distribu\u00efdors, organismes de certificaci\u00f3 i inspectors nacionals de seguretat aliment\u00e0ria verificar que els productes no contenen aquesta colza transg\u00e8nica&#8221;.<\/p>\n<blockquote><p>El nou m\u00e8tode de detecci\u00f3 \u00e9s una fita en la protecci\u00f3 dels consumidors i les empreses de la UE<\/p><\/blockquote>\n<p><strong><em>Heike Moldenhauer<\/em><\/strong>, assessor de pol\u00edtiques de la UE a l&#8217; <strong><em>Association Food without Genetic Engineering<\/em><\/strong>, afirma: &#8220;El nou m\u00e8tode de detecci\u00f3 \u00e9s una fita en la protecci\u00f3 dels consumidors i les empreses de la UE. Les autoritats ara poden comen\u00e7ar a identificar cultius editats gen\u00e8ticament no autoritzats. Aix\u00f2 ajuda als apicultors, agricultors, ramaders, processadors d&#8217;aliments i pinsos i distribu\u00efdors a mantenir aquests nous transg\u00e8nics fora de les seves cadenes de subministrament i satisfer la demanda dels consumidors d&#8217;aliments sense transg\u00e8nics&#8221;.<\/p>\n<p><strong>Article cient\u00edfic de refer\u00e8ncia:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/www.mdpi.com\/2304-8158\/9\/9\/1245\" target=\"_blank\" rel=\"noopener noreferrer\"><em>A Real-Time Quantitative PCR Method Specific for Detection and Quantification of the First Commercialized Genome-Edited Plant<\/em>. Pradheep Chhalliyil<\/a> et al. Revista Foods (MDPI) 9 (9) 1245. Publicat 7 de setembre de 2020.<\/li>\n<\/ul>\n<p><strong>M\u00e9s informaci\u00f3:<\/strong><\/p>\n<ul>\n<li><a href=\"https:\/\/es.greenpeace.org\/es\/sala-de-prensa\/comunicados\/primera-prueba-de-deteccion-de-codigo-abierto-para-un-cultivo-transgenico-editado-geneticamente\/\" target=\"_blank\" rel=\"noopener noreferrer\">Greenpeace, <\/a><\/li>\n<li><a href=\"https:\/\/cibus.com\/\" target=\"_blank\" rel=\"noopener noreferrer\">Empresa Cibus<\/a><\/li>\n<li><a href=\"https:\/\/hrilabs.org\/\" target=\"_blank\" rel=\"noopener noreferrer\">Health Research Institute<\/a><\/li>\n<\/ul>\n<p><strong>Autor<\/strong>: Joaquim Elcacho, Periodista especialitzat en Medi Ambient i Ci\u00e8ncia<\/p>\n<p><strong><a href=\"https:\/\/www.bioecoactual.com\/ca\/subscripcio\/\" target=\"_blank\" rel=\"noopener noreferrer\">Subscriu-te<\/a> a la Newsletter i rep cada mes Bio Eco Actual gratis al teu correu<\/strong><\/p>\n<p><strong><em>Bio Eco Actual<\/em>, <em>el teu mensual 100% ecol\u00f2gic<\/em><br \/>\nLlegir <\/strong><a href=\"https:\/\/www.bioecoactual.com\/wp-content\/uploads\/2020\/10\/BioEcoActual_Novembre_2020.pdf\" target=\"_blank\" rel=\"noopener noreferrer\"><strong>Bio Eco Actual Novembre 2020<\/strong><\/a><\/p>\n<p><iframe style=\"border: none; width: 100%; height: 520px;\" src=\"\/\/e.issuu.com\/embed.html?d=bioecoactual_novembre_2020&amp;hideIssuuLogo=true&amp;showOtherPublicationsAsSuggestions=true&amp;u=bioecoactual\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>El debat sobre el cultiu i comercialitzaci&oacute; de productes transg&egrave;nics es decanta de manera clara a Europa a favor dels consumidors -amb el suport per la gran majoria de pa&iuml;sos- que rebutgen aquests productes per considerar-los innecessaris i potencialment perillosos per al medi ambient i la salut humana. Per&ograve; la nova t&egrave;cnica d&rsquo;enginyeria gen&egrave;tica CRISPR [&hellip;]<\/p>\n","protected":false},"author":419,"featured_media":42085,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7180,7164,7160],"tags":[],"class_list":["post-42094","post","type-post","status-publish","format-standard","has-post-thumbnail","category-activisme","category-actualitat","category-medi-ambient"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.0 (Yoast SEO v28.0) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>CRISPR: una nova i pol\u00e8mica t\u00e8cnica d&#039;enginyeria gen\u00e8tica<\/title>\n<meta name=\"description\" content=\"la nova t\u00e8cnica d&#039;enginyeria gen\u00e8tica CRISPR mant\u00e9 el debat sobre el consum i la comercialitzaci\u00f3 de productes trasg\u00e8ncs ben obert.\" \/>\n<meta name=\"robots\" content=\"index, follow, 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