{"id":186229,"date":"2025-06-02T15:01:10","date_gmt":"2025-06-02T12:01:10","guid":{"rendered":"https:\/\/www.tgrthaber.com\/mavikadin\/?p=186229"},"modified":"2025-06-02T18:01:00","modified_gmt":"2025-06-02T15:01:00","slug":"sari-sacin-tarihsel-gelisimi-mutasyon-degisimi-sonucu-mu-ortaya-cikti","status":"publish","type":"post","link":"https:\/\/www.tgrthaber.com\/mavikadin\/sari-sacin-tarihsel-gelisimi-mutasyon-degisimi-sonucu-mu-ortaya-cikti\/","title":{"rendered":"Sar\u0131 sa\u00e7\u0131n tarihsel geli\u015fimi! Mutasyon de\u011fi\u015fimi sonucu mu ortaya \u00e7\u0131kt\u0131?"},"content":{"rendered":"

Sar\u0131 sa\u00e7 renginin ne zaman ortaya \u00e7\u0131kt\u0131\u011f\u0131 merak ediliyor. Evrimsel bir adaptasyonun sonucu olan sar\u0131 sa\u00e7 rengi hakk\u0131nda merak edilenler haberimizde yer al\u0131yor.<\/p>\n

SARI SA\u00c7 RENG\u0130 NE ZAMAN ORTAYA \u00c7IKTI?<\/h3>\n

D\u00fcnyan\u0131n di\u011fer b\u00f6lgelerine g\u00f6\u00e7 ettik\u00e7e koyu sa\u00e7 rengi y\u00f6n\u00fcndeki bask\u0131lar azald\u0131k\u00e7a daha a\u00e7\u0131k ten ve sa\u00e7 renkleri artm\u0131\u015ft\u0131r. Bilim insanlar\u0131na g\u00f6re sar\u0131 sa\u00e7 insanl\u0131k tarihinde olduk\u00e7a yeni say\u0131l\u0131rken Avrupa\u2019da 11 bin y\u0131l \u00f6nce ortaya \u00e7\u0131kan bu genetik mutasyon hakk\u0131nda baz\u0131 varsay\u0131mlar bulunmaktad\u0131r. Buna g\u00f6re sar\u0131 sa\u00e7\u0131n g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131n\u0131n az oldu\u011fu b\u00f6lgelerde D vitamini sentezini art\u0131rmak amac\u0131yla do\u011fal se\u00e7ilimle yay\u0131lm\u0131\u015f olabilece\u011fi tahmin ediliyor.<\/p>\n

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Bu demek oluyor ki sar\u0131 sa\u00e7 sadece estetik kayg\u0131dan dolay\u0131 de\u011fil ayn\u0131 zamanda farkl\u0131 fakt\u00f6rler sonucu ortaya \u00e7\u0131km\u0131\u015ft\u0131r. Ekvator yak\u0131n\u0131nda bulunan ve G\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131n\u0131 direkt alan b\u00f6lgelerde, D vitamini elde etmek bir probleme neden olmaz. Ancak, insanlar ekvatorun daha kuzeyine do\u011fru g\u00f6\u00e7 ettik\u00e7e, g\u00fcne\u015f \u0131\u015f\u0131\u011f\u0131 miktar\u0131 y\u0131l boyunca de\u011fi\u015fkenlik g\u00f6sterir.<\/p>\n

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\u0130nsanlar\u0131n g\u00f6\u00e7 eden atalar\u0131 daha so\u011fuk iklimlerin oldu\u011fu yerlere yerle\u015fmi\u015flerdir. Bu da se\u00e7ilim bask\u0131s\u0131n\u0131n azalmas\u0131yla derideki ve sa\u00e7lardaki pigmentlerin nesilden nesillere solukla\u015fmas\u0131na ve yeni renklerin ortaya \u00e7\u0131kmas\u0131na olanak sa\u011flar.<\/p>\n

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SARI\u015eIN GEN\u0130N\u0130N KAYBOLMASI<\/h3>\n

Sar\u0131\u015f\u0131n geninin kaybolmas\u0131 do\u011fal sar\u0131\u015f\u0131nlar\u0131n soyunun t\u00fckenece\u011fini \u00f6ng\u00f6ren bilimsel ara\u015ft\u0131rmaya dayand\u0131\u011f\u0131 \u00f6ne s\u00fcr\u00fclen bir haberdir. 2002 ve 2006 y\u0131llar\u0131 aras\u0131nda BBC ve “The Sunday Times” gibi sayg\u0131n gazetelerde iddia olarak yay\u0131nlanm\u0131\u015ft\u0131r.<\/p>\n

1865 y\u0131l\u0131ndan beri sar\u0131 sa\u00e7 geninin yok olaca\u011f\u0131 iddia edilmektedir. BBC makalesinde Edinburgh \u00dcniversitesi’nden Profes\u00f6r Jonathan Rees iddian\u0131n do\u011frulu\u011funa \u015f\u00fcpheyle yakla\u015fm\u0131\u015f ve \u015f\u00f6yle demi\u015ftir: “Sar\u0131\u015f\u0131nlar\u0131n s\u0131kl\u0131\u011f\u0131 azalabilir ama yok olmayacaklar.”<\/p>\n

Baz\u0131 raporlar, D\u00fcnya Sa\u011fl\u0131k \u00d6rg\u00fct\u00fc’n\u00fcn (WHO) sar\u0131 sa\u00e7l\u0131 insanlar\u0131n 2202 y\u0131l\u0131nda t\u00fckenece\u011fini iddia eden bir rapor yay\u0131nlad\u0131\u011f\u0131n\u0131 \u00f6ne s\u00fcrd\u00fc.<\/p>\n","protected":false},"excerpt":{"rendered":"

Sar\u0131 sa\u00e7 rengi ne zaman ortaya \u00e7\u0131kt\u0131? Ara\u015ft\u0131r\u0131l\u0131yor. Sar\u0131 sa\u00e7 rengi bilim insanlar\u0131na g\u00f6re insanl\u0131k tarihinde olduk\u00e7a yeni say\u0131l\u0131yor.<\/p>\n","protected":false},"author":5,"featured_media":186233,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"footnotes":""},"categories":[166],"tags":[23560,247,3954,17580],"class_list":["post-186229","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sac-bakimi-sac-uzatma","tag-evrim","tag-kesfet","tag-sac-rengi","tag-sari-sac"],"_links":{"self":[{"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/posts\/186229"}],"collection":[{"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/comments?post=186229"}],"version-history":[{"count":5,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/posts\/186229\/revisions"}],"predecessor-version":[{"id":186277,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/posts\/186229\/revisions\/186277"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/media\/186233"}],"wp:attachment":[{"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/media?parent=186229"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/categories?post=186229"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tgrthaber.com\/mavikadin\/wp-json\/wp\/v2\/tags?post=186229"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}