ABD, \u0130talya ve Fransa’dan bir ara\u015ft\u0131rmac\u0131 ekibi, Neandertallerden ve Denisovalardan miras kalan DNA’n\u0131n, Melanezya halk\u0131n\u0131n ada ortam\u0131nda hayatta kalmas\u0131na yard\u0131mc\u0131 olmu\u015f olabilece\u011fini g\u00f6sterdi.<\/p>\n
Science dergisinde yay\u0131mlanan makalede ekip, Melanezya halk\u0131n\u0131n genetik incelemesini yapt\u0131. \u00d6nceki ara\u015ft\u0131rmalar, modern insan genlerinde Neandertal ve Denisovan DNA’lar\u0131n\u0131n bulundu\u011funu ve baz\u0131 modern insanlar\u0131n genomunun bu t\u00fcrlerle olan genetik benzerli\u011finin di\u011ferlerinden daha fazla oldu\u011funu g\u00f6stermi\u015ftir. \u00d6rne\u011fin Melanezya halklar\u0131, genlerinde hem Neandertal hem de Denisovan DNA’lar\u0131n\u0131n y\u00fcksek konsantrasyonuna sahiptir. Bu durumun nedeni hen\u00fcz anla\u015f\u0131lm\u0131\u015f de\u011fildir. Bu yeni \u00e7abayla birlikte ara\u015ft\u0131rmac\u0131lar, modern Melanezya halk\u0131n\u0131n genetik incelemesini ger\u00e7ekle\u015ftirdi.<\/p>\n
Bir\u00e7ok insan, Neandertaller gibi soyu t\u00fckenmi\u015f homininlerden miras ald\u0131klar\u0131 DNA’lara sahiptir ve \u015fimdi bu DNA\u2019lar\u0131n, baz\u0131 durumlarda sadece k\u00fc\u00e7\u00fck par\u00e7ac\u0131klar olmad\u0131\u011f\u0131n\u0131, uzun zincirlere de sahip olabildiklerini biliyoruz.<\/p>\n
Son on y\u0131lda yap\u0131lan insan DNA’s\u0131n\u0131n genetik analizi \u00e7al\u0131\u015fmalar\u0131, eski insanlar\u0131n Neandertaller gibi di\u011fer homininlerle i\u00e7 i\u00e7e ge\u00e7mi\u015f bir genetik yap\u0131s\u0131 olmas\u0131 gerekti\u011fini ortaya koydu. Sonu\u00e7 olarak, bu soyu t\u00fckenmi\u015f gruplar\u0131n DNA\u2019s\u0131 bug\u00fcn bir\u00e7ok insan populasyonlar\u0131nda bulunabilir. Ancak, bu \u00e7al\u0131\u015fmalar genellikle k\u00fc\u00e7\u00fck DNA par\u00e7alar\u0131yla s\u0131n\u0131rl\u0131yd\u0131. Seattle’daki Washington \u00dcniversitesi’nden Evan Eichler ve ekibi daha ileri gittiler. Ara\u015ft\u0131rmac\u0131lar, Neandertal ve Denisovan DNA\u2019lar\u0131n\u0131n bu populasyonlarda y\u00fcksek olup olmad\u0131\u011f\u0131n\u0131 kavramak i\u00e7in Melanezya’daki insanlar\u0131n DNA’s\u0131na bakt\u0131lar. Bu populasyonda eski insanlardan aktar\u0131lan DNA par\u00e7alar\u0131n\u0131n daha uzun oldu\u011funa dair kan\u0131tlar buldular.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar, aktar\u0131lan DNA’n\u0131n Melanezya genomuna sa\u011flad\u0131\u011f\u0131 faydaya da odakland\u0131. Adaptasyon se\u00e7imlerinin ba\u011f\u0131\u015f\u0131kl\u0131k, diyet, h\u00fccresel fonksiyon ve metabolizma ile ili\u015fkili oldu\u011fu tespit edildi. Bulgular, erken Melanezya halk\u0131n\u0131n, eski insan t\u00fcrleriyle, kendilerine \u00f6zg\u00fc ada ortamlar\u0131nda hayatta kalmalar\u0131na yard\u0131mc\u0131 olacak \u015fekilde i\u00e7 i\u00e7e ya\u015fam\u0131\u015f olabilece\u011fini g\u00f6stermektedir.<\/p>\n
Kaynak:<\/strong> https:\/\/www.newscientist.com\/article\/2220381-long-strand-of-dna-from-neanderthals-found-in-people-from-melanesia\/<\/p>\n https:\/\/cosmosmagazine.com\/biology\/huge-genomic-changes-an-afterglow-of-archaic-human-pairings<\/p>\n","protected":false},"excerpt":{"rendered":" ABD, \u0130talya ve Fransa’dan bir ara\u015ft\u0131rmac\u0131 ekibi, Neandertallerden ve Denisovalardan miras kalan DNA’n\u0131n, Melanezya halk\u0131n\u0131n ada ortam\u0131nda hayatta kalmas\u0131na yard\u0131mc\u0131 olmu\u015f olabilece\u011fini g\u00f6sterdi. Science dergisinde yay\u0131mlanan makalede ekip, Melanezya halk\u0131n\u0131n genetik incelemesini yapt\u0131. \u00d6nceki ara\u015ft\u0131rmalar, modern insan genlerinde Neandertal ve Denisovan DNA’lar\u0131n\u0131n bulundu\u011funu ve baz\u0131 modern insanlar\u0131n genomunun bu t\u00fcrlerle olan genetik benzerli\u011finin di\u011ferlerinden daha […]<\/p>\n","protected":false},"author":1390,"featured_media":37641,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[272,773,5442,529],"class_list":["post-37640","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-dna","tag-genom","tag-melanezya","tag-neandertal"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/37640","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/users\/1390"}],"replies":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/comments?post=37640"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/37640\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/37641"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=37640"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=37640"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=37640"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}