{"id":517578,"date":"2026-11-01T23:47:43","date_gmt":"2026-11-01T23:47:43","guid":{"rendered":"http:\/\/6ae37ac76e3dadedee71f559"},"modified":"2026-11-01T23:47:43","modified_gmt":"2026-11-01T23:47:43","slug":"los-perros-de-chernobil-podrian-estar-evolucionando-pero-los-cientificos-no-saben-por-que","status":"publish","type":"post","link":"https:\/\/sarmiento24h.com\/?p=517578","title":{"rendered":"Los perros de Chern\u00f3bil podr\u00edan estar evolucionando, pero los cient\u00edficos no saben por qu\u00e9"},"content":{"rendered":"<p>Desde hace unos a\u00f1os, los cient\u00edficos saben que los perros que viven en libertad cerca de la Central nuclear de Chern\u00f3bil tienen un perfil gen\u00e9tico muy diferente al de otras poblaciones caninas. Lo que hallaron adicionalmente en aquel momento tambi\u00e9n fue llamativo. Algunas de las regiones del ADN de los canes locales est\u00e1n relacionadas con funciones como la reparaci\u00f3n del ADN, la respuesta inmunitaria y la supervivencia celular. Es razonable asumir que la fauna ha cambiado durante los \u00faltimos 40 a\u00f1os para enfrentar el entorno contaminado, pero la ciencia todav\u00eda no puede asegurarlo con total certeza.<\/p>\n<p>Tras el accidente nuclear de 1986 en la entonces Uni\u00f3n Sovi\u00e9tica, los habitantes de la zona fueron evacuados y muchas localidades en lo que hoy es Ucrania quedaron abandonadas. Mientras la presencia humana se desplom\u00f3, distintas especies de fauna silvestre continuaron habitando la regi\u00f3n. Entre ellas est\u00e1n los descendientes de <a href=\"https:\/\/es.wired.com\/articulos\/por-que-los-perros-pequenos-viven-mas-que-los-grandes-los-genes-saltarines-podrian-tener-la-respuesta\">los perros<\/a> que sus due\u00f1os dejaron atr\u00e1s durante la evacuaci\u00f3n.<\/p>\n<figure class=\"AssetEmbedWrapper-iJvQnD cOWUYC asset-embed\">\n<div class=\"AssetEmbedAssetContainer-fnduJP iaVSwI asset-embed__asset-container\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj AssetEmbedResponsiveAsset-gaAbQ hXaxHA asset-embed__responsive-asset responsive-image\"><img decoding=\"async\" alt=\"Un perro paseando por la ciudad fantasma de Pripiat cercana a la planta de Chern\u00f3bil.\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_120,c_limit\/504556036 120w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_240,c_limit\/504556036 240w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_320,c_limit\/504556036 320w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_640,c_limit\/504556036 640w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_768,c_limit\/504556036 768w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_960,c_limit\/504556036 960w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_1280,c_limit\/504556036 1280w, https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_1600,c_limit\/504556036 1600w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6ae396ccf5decd9116a5b650\/master\/w_1600%2Cc_limit\/504556036\"><\/picture><\/span><\/div>\n<div class=\"CaptionWrapper-bpPcvW kzGGxb caption AssetEmbedCaption-eZIMNW gMgneI asset-embed__caption\" data-testid=\"caption-wrapper\" readability=\"6.5\"><span class=\"BaseText-fEwdHD CaptionText-cQpRdU gZqZYz hbiMYj caption__text\" readability=\"28\"><\/p>\n<p>Un perro paseando por la ciudad fantasma de Pripiat, cercana a la planta de Chern\u00f3bil.<\/p>\n<p><\/span><span class=\"BaseText-fEwdHD CaptionCredit-cUgOGk fSrqtv hRFzlA caption__credit\">SERGEI SUPINSKY\/Getty Images<\/span><\/div>\n<\/figure>\n<p>Una nueva investigaci\u00f3n, publicada en la revista cient\u00edfica <a data-offer-url=\"https:\/\/www.mdpi.com\/2073-4425\/17\/10\/1195\" class=\"external-link\" data-event-click=\"{&quot;element&quot;:&quot;ExternalLink&quot;,&quot;outgoingURL&quot;:&quot;https:\/\/www.mdpi.com\/2073-4425\/17\/10\/1195&quot;}\" href=\"https:\/\/www.mdpi.com\/2073-4425\/17\/10\/1195\" rel=\"nofollow noopener\" target=\"_blank\"><em>Genes<\/em><\/a>, vuelve sobre el misterio de estos perros, a los que a veces se describe como \u201cmutantes\u201d. Esta vez, los cient\u00edficos quer\u00edan averiguar si la selecci\u00f3n natural pudo contribuir a sus diferencias gen\u00e9ticas ya descubiertas. En otras palabras, buscaban pistas que permitieran saber si, en las condiciones extremas de Chern\u00f3bil, algunos perros tuvieron caracter\u00edsticas que les ayudaron a sobrevivir y reproducirse, transmitiendo esas variantes gen\u00e9ticas a las siguientes generaciones.<\/p>\n<p>Para responder esa pregunta, los investigadores compararon el ADN de los perros que viven cerca de la central con el de los que habitan en la ciudad de Chern\u00f3bil, a unos 16 kil\u00f3metros de distancia. Tambi\u00e9n recurrieron a otras poblaciones caninas para comprobar si las diferencias pod\u00edan explicarse por el aislamiento. <strong>Los resultados apuntaron a que el azar no bastaba para explicar lo que ocurr\u00eda:<\/strong> en el ADN de los perros de la central nuclear hab\u00eda regiones con patrones compatibles con la selecci\u00f3n natural.<\/p>\n<hr>\n<div class=\"ContentCardEmbedWrapper-hkvhYu kMYDit content-card-embed content-card-embed--stacked\" data-testid=\"ContentCardEmbedWrapper\" readability=\"23.6640625\">\n<div class=\"ContentCardEmbedImage-bqahne fjmzkP content-card-embed__image\" data-testid=\"ContentCardEmbedImage\"><span class=\"SpanWrapper-kFnjvc eKnjjD responsive-asset\"><picture class=\"ResponsiveImagePicture-jKunQM gjCCFj responsive-image\"><img decoding=\"async\" alt=\"article image\" loading=\"lazy\" class=\"ResponsiveImageContainer-dkeESL cQPiWi responsive-image__image\" srcset=\"https:\/\/media.es.wired.com\/photos\/6ababa56859553bd2feb36aa\/master\/w_120,c_limit\/GettyImages-2237386891.jpg 120w, https:\/\/media.es.wired.com\/photos\/6ababa56859553bd2feb36aa\/master\/w_240,c_limit\/GettyImages-2237386891.jpg 240w, https:\/\/media.es.wired.com\/photos\/6ababa56859553bd2feb36aa\/master\/w_320,c_limit\/GettyImages-2237386891.jpg 320w, https:\/\/media.es.wired.com\/photos\/6ababa56859553bd2feb36aa\/master\/w_640,c_limit\/GettyImages-2237386891.jpg 640w, https:\/\/media.es.wired.com\/photos\/6ababa56859553bd2feb36aa\/master\/w_768,c_limit\/GettyImages-2237386891.jpg 768w\" sizes=\"100vw\" src=\"https:\/\/media.es.wired.com\/photos\/6ababa56859553bd2feb36aa\/master\/w_775%2Cc_limit\/GettyImages-2237386891.jpg\"><\/picture><\/span><\/div>\n<div class=\"ContentCardEmbedInfo-buyHWH gWLOee\" readability=\"25.484375\">\n<div class=\"BaseText-fEwdHD ContentCardEmbedHed-kDKGDs iUENtL dlHXUJ content-card-embed__hed\" data-testid=\"ContentCardEmbedHed\"><a class=\"BaseLink-haTOKm ContentCardEmbedHedLink-iBZsco ILkR hhUFQU content-card-embed__hed-link link\" href=\"https:\/\/es.wired.com\/articulos\/la-radiacion-que-se-asocia-con-el-cancer-ahora-se-relaciona-tambien-con-el-alzheimer\" data-testid=\"ContentCardEmbedHedLink\">La radiaci\u00f3n que se asocia con el c\u00e1ncer ahora se relaciona tambi\u00e9n con el Alzheimer<\/a><\/div>\n<p>Una revisi\u00f3n cient\u00edfica encontr\u00f3 una asociaci\u00f3n entre la exposici\u00f3n a radiaci\u00f3n ionizante y un mayor riesgo de demencia, adem\u00e1s identific\u00f3 mecanismos que podr\u00edan relacionarla con cambios cerebrales presentes en el Alzheimer.<\/p>\n<\/div>\n<\/div>\n<hr>\n<p>La mejor pista apareci\u00f3 al examinar qu\u00e9 hab\u00eda cerca de esas regiones. Los investigadores identificaron genes relacionados con la reparaci\u00f3n del <a href=\"https:\/\/es.wired.com\/articulos\/el-adn-del-perro-chihuahua-revela-un-vinculo-inesperado-con-los-coyotes\">ADN<\/a>, la respuesta inmunitaria y la supervivencia celular. Es decir, algunas de las diferencias gen\u00e9ticas de los perros de la central se encuentran en zonas relacionadas con funciones que podr\u00edan ser relevantes para afrontar el estr\u00e9s ambiental.<\/p>\n<p>En conjunto, los resultados refuerzan la hip\u00f3tesis de que la selecci\u00f3n natural contribuy\u00f3 a diferenciar a estos perros de otras poblaciones. Lo que todav\u00eda no permiten saber es qu\u00e9 factores ambientales favorecieron esas variantes ni si estas les proporcionan alguna ventaja concreta. <strong>La radiaci\u00f3n es una posibilidad, pero el estudio no pudo separar sus efectos de los de otros contaminantes o de las circunstancias que marcaron la historia de estos animales.<\/strong><\/p>\n<p>Casi cuatro d\u00e9cadas despu\u00e9s del accidente, la zona de exclusi\u00f3n de Chern\u00f3bil se ha convertido tambi\u00e9n en un refugio para especies silvestres. Lobos, ciervos, jabal\u00edes o linces salvajes recorren hoy el territorio. Diversos estudios han encontrado poblaciones abundantes de grandes mam\u00edferos, un fen\u00f3meno que los investigadores relacionan en buena medida con la disminuci\u00f3n de actividades humanas como la caza y la transformaci\u00f3n del territorio.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Desde hace unos a\u00f1os, los cient\u00edficos saben&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":517579,"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_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[46],"tags":[],"class_list":["post-517578","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-tecnologia"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - 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