2010 y\u0131l\u0131nda bilim insanlar\u0131 Sibirya’daki Altay Da\u011flar\u0131 ma\u011faras\u0131nda \u00e7\u0131\u011f\u0131r a\u00e7an bir ke\u015fifte bulundular: 13 ya\u015f\u0131nda, Neandertal bir anneden ve Denisoval\u0131 bir babadan olan melez bir hominine, Denisova 11’e ait minik bir kemik par\u00e7as\u0131. Bu ola\u011fan\u00fcst\u00fc buluntu, erken insan t\u00fcrleri aras\u0131nda melezle\u015fmeye dair ilk kesin kan\u0131t\u0131 sa\u011flad\u0131.<\/p>\n\n
Ara\u015ft\u0131rmac\u0131lar, Denisova 11’in kemik par\u00e7as\u0131n\u0131 analiz etmek i\u00e7in geli\u015fmi\u015f DNA analizi teknikleri kulland\u0131lar. Annesinden miras kalan ve Neandertallerinkine benzeyen mitokondriyal DNA ile her iki ebeveynden de miras kalan ve e\u015fit miktarlarda Denisova DNA’s\u0131 i\u00e7eren n\u00fckleer DNA’n\u0131n benzersiz bir kombinasyonunu ke\u015ffettiler.<\/p>\n\n
\u0130ki farkl\u0131 erken insan t\u00fcr\u00fc olan Neandertaller ve Denisoval\u0131lar, yakla\u015f\u0131k 390.000 y\u0131l \u00f6nce ortak bir atadan ayr\u0131ld\u0131lar. Neandertaller a\u011f\u0131rl\u0131kl\u0131 olarak Bat\u0131 Avrasya’da ya\u015farken, Denisoval\u0131lar do\u011fu b\u00f6lgelerinde dola\u015f\u0131yordu. Neandertaller topraklar\u0131n\u0131 do\u011fuya do\u011fru geni\u015flettik\u00e7e, muhtemelen Denisoval\u0131larla kar\u015f\u0131la\u015ft\u0131lar ve bu da melezle\u015fme vakalar\u0131na yol a\u00e7t\u0131.<\/p>\n\n
Denisova 11’in annesi, Bat\u0131 Avrupa’dan gelen Neandertallerle yak\u0131ndan ili\u015fkiliyken, babas\u0131n\u0131n soyu Altay Da\u011flar\u0131 ma\u011faras\u0131n\u0131 \u00e7evreleyen b\u00f6lgeden kaynaklan\u0131yordu. DNA analizi ayr\u0131ca Denisova 11’in babas\u0131n\u0131n bir Neandertal atas\u0131 oldu\u011funu ve bu da t\u00fcrler aras\u0131 \u00e7iftle\u015fmenin ba\u015fka bir \u00f6rne\u011fini g\u00f6sterdi\u011fini ortaya koydu.<\/p>\n\n
Denisova 11’in ke\u015ffi, t\u00fcrler aras\u0131 melezlerin nadir oldu\u011fu y\u00f6n\u00fcndeki uzun s\u00fcredir devam eden inanc\u0131 sorguluyor. Ara\u015ft\u0131rmac\u0131lar art\u0131k melezlerin daha \u00f6nce d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnden \u00e7ok daha yayg\u0131n olabilece\u011fini \u00f6ne s\u00fcr\u00fcyorlar.<\/p>\n\n
Neandertallerin ve Denisoval\u0131lar\u0131n genetik ayak izleri modern insan DNA’s\u0131nda hala mevcut. Avrupal\u0131lar\u0131n ve Asyal\u0131lar\u0131n \u00e7o\u011funlu\u011funun %2’si Neandertal DNA’s\u0131 ta\u015f\u0131rken, Melanezyal\u0131lar\u0131n %4 ila %6’s\u0131 Denisova soyuna sahip.<\/p>\n\n
Altay Da\u011flar\u0131 ma\u011faras\u0131, Neandertaller, Denisoval\u0131lar ve Denisova 11’e ait kemik par\u00e7alar\u0131 da dahil olmak \u00fczere \u00e7ok say\u0131da antropolojik bulgu ortaya \u00e7\u0131kard\u0131. Bu ke\u015fifler, insan evrimi ve farkl\u0131 hominin t\u00fcrleri aras\u0131ndaki karma\u015f\u0131k etkile\u015fimler hakk\u0131nda de\u011ferli bilgiler sa\u011flad\u0131.<\/p>\n\n
Neandertaller, Denisoval\u0131lar ve modern insanlar aras\u0131ndaki melezle\u015fmenin evrimsel yolculu\u011fumuz \u00fczerinde \u00f6nemli bir etkisi oldu. Genetik materyalin de\u011fi\u015f toku\u015fu, insan pop\u00fclasyonlar\u0131n\u0131n \u00e7e\u015fitlili\u011fine katk\u0131da bulundu ve farkl\u0131 \u00e7evrelere uyum sa\u011flamam\u0131z\u0131 etkilemi\u015f olabilir.<\/p>\n\n
Denisova 11, insan evrim tarihinde \u00e7ok \u00f6nemli bir fig\u00fcrd\u00fcr. Kemik par\u00e7as\u0131, t\u00fcrler aras\u0131 \u00fcreme, genetik \u00e7e\u015fitlilik ve erken insan t\u00fcrleri aras\u0131ndaki karma\u015f\u0131k ili\u015fkiler hakk\u0131nda \u00e7ok say\u0131da bilgi sa\u011flad\u0131.<\/p>\n\n
Denisova 11’in ke\u015ffi, insan evrimi \u00fczerine yeni ara\u015ft\u0131rma alanlar\u0131 a\u00e7t\u0131. Devam eden \u00e7al\u0131\u015fmalar, Denisova 11 ve di\u011fer melez homininlerden ek genetik materyalin analizine odaklanarak melezle\u015fmenin genetik sonu\u00e7lar\u0131n\u0131 ve insan adaptasyonu \u00fczerindeki etkisini daha derinlemesine anlamak i\u00e7in y\u00fcr\u00fct\u00fcl\u00fcyor.<\/p>","protected":false},"excerpt":{"rendered":"
Denisova 11: \u0130nsan Soyunun S\u0131rlar\u0131n\u0131 \u00c7\u00f6zmek Melez Bir Homininin Ke\u015ffi 2010 y\u0131l\u0131nda bilim insanlar\u0131 Sibirya’daki Altay Da\u011flar\u0131 ma\u011faras\u0131nda \u00e7\u0131\u011f\u0131r a\u00e7an bir ke\u015fifte bulundular: 13 ya\u015f\u0131nda, Neandertal bir anneden ve Denisoval\u0131…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1022],"tags":[15514,15517,188,487,15518,15515,15516,1568],"class_list":["post-11463","post","type-post","status-publish","format-standard","hentry","category-anthropology","tag-denisova-11","tag-denisovan","tag-genetics","tag-human-evolution","tag-interspecies-breeding","tag-hybrid-hominin","tag-neanderthal","tag-paleoanthropology"],"_links":{"self":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/11463","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/comments?post=11463"}],"version-history":[{"count":1,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/11463\/revisions"}],"predecessor-version":[{"id":11464,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/posts\/11463\/revisions\/11464"}],"wp:attachment":[{"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/media?parent=11463"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/categories?post=11463"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.lifescienceart.com\/tr\/wp-json\/wp\/v2\/tags?post=11463"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}