Fosil kal\u0131nt\u0131lar\u0131ndan elde edilen DNA \u00f6rneklerinin analizi, en eski ke\u00e7i s\u00fcr\u00fclerinin genetik yap\u0131s\u0131n\u0131 ortaya \u00e7\u0131kard\u0131. Yakla\u015f\u0131k 10.000 y\u0131l \u00f6nceye tarihlenen \u00f6rnekler, erken d\u00f6nem tar\u0131m uygulamalar\u0131n\u0131n bu hayvanlar\u0131n evrimini nas\u0131l \u015fekillendirdi\u011fine dair veri sa\u011fl\u0131yor.<\/p>\n
Daha \u00f6nceki arkeolojik kal\u0131nt\u0131 \u00e7al\u0131\u015fmalar\u0131, \u0130ran\u2019\u0131n bat\u0131s\u0131ndaki Zagros Da\u011flar\u0131\u2019nda ya\u015fayan insanlar\u0131n ke\u00e7ileri evcille\u015ftirmesine dair en erken kan\u0131tlar\u0131n\u0131 sunmu\u015ftu. Yeni \u00e7al\u0131\u015fmada Ganj Dareh b\u00f6lgesinden elde edilen kal\u0131nt\u0131lar incelendi. B\u00f6lgeden elde edilen kemik kal\u0131nt\u0131lar\u0131n\u0131n analizi, di\u015fi ke\u00e7ilerin daha b\u00fcy\u00fck ya\u015flara eri\u015fmesine izin verilirken erkek ke\u00e7ilerin b\u00fcy\u00fcd\u00fckten sonra \u00f6ld\u00fcr\u00fcld\u00fc\u011f\u00fcn\u00fc g\u00f6sterdi. Bu durum, ilk ke\u00e7i yeti\u015ftiricilerinin, yeni yavrular meydana getirebilecek di\u015fi ke\u00e7ilerin say\u0131s\u0131n\u0131 en \u00fcst seviyeye \u00e7\u0131karmaya \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 g\u00f6steriyor.<\/p>\n
Evcille\u015ftirmenin erken d\u00f6nemlerinde ke\u00e7iler ve \u00e7obanlar aras\u0131ndaki yak\u0131n ili\u015fki, yerle\u015fim yerlerinden al\u0131nan \u00f6rneklerde g\u00f6r\u00fcld\u00fc. Ayn\u0131 zamanda analizler, erken d\u00f6nem evcil ke\u00e7ilerinin boyut baz\u0131nda da farkl\u0131, daha b\u00fcy\u00fck oldu\u011funu g\u00f6steriyor.<\/p>\n
PNAS<\/em> portal\u0131nda yay\u0131nlanan \u00e7al\u0131\u015fmada ara\u015ft\u0131rmac\u0131lar, genetik analizler yoluyla evcil ke\u00e7ilerin atalar\u0131n\u0131n kayna\u011f\u0131 olan b\u00f6lgeyi belirledi ve \u00f6rnekleri tarihlendirdi. Genetik analizin sonu\u00e7lar\u0131, ke\u00e7i evcille\u015ftirmesinin ana kayna\u011f\u0131 olarak Zagros b\u00f6lgesini i\u015faret etmektedir. \u00d6rnekler ise evcille\u015ftirmeyi 10.200 y\u0131l \u00f6nceye tarihlendirdi.<\/p>\n Ayn\u0131 b\u00f6lgeden al\u0131nan \u00f6rneklerden baz\u0131lar\u0131n\u0131n genomlar\u0131 bezoar da\u011f ke\u00e7isine benzemekteydi. Bu ke\u015fif, erken d\u00f6nem ke\u00e7i yeti\u015ftiricilerinin yabani s\u00fcr\u00fclerden ke\u00e7i avlad\u0131\u011f\u0131n\u0131 da g\u00f6stermektedir.<\/p>\n Ara\u015ft\u0131rmac\u0131lar, ke\u00e7i yeti\u015ftiricili\u011finin erken d\u00f6nemlerindeki hayvanc\u0131l\u0131\u011f\u0131n ke\u00e7i genomlar\u0131n\u0131 \u015fekillendirdi\u011fini belirtiyor; bu \u015fekillendirmede yeti\u015fkin erkek ke\u00e7ilerin \u00f6ld\u00fcr\u00fclmesi, buna kar\u015f\u0131n di\u015fi ke\u00e7ilerin daha uzun s\u00fcre ya\u015famas\u0131 ve \u00e7o\u011falmas\u0131 etkili olmu\u015f. Biliminsanlar\u0131, ayr\u0131ca, antik DNA \u00e7al\u0131\u015fmalar\u0131n\u0131n tarih\u00f6ncesinin derinliklerine inilmesine izin verdi\u011fine de dikkat \u00e7ekiyor.<\/p>\n Kaynak:<\/strong> https:\/\/phys.org\/news\/2021-06-year-old-dna-pens-tales-earliest.html<\/p>\n","protected":false},"excerpt":{"rendered":" Fosil kal\u0131nt\u0131lar\u0131ndan elde edilen DNA \u00f6rneklerinin analizi, en eski ke\u00e7i s\u00fcr\u00fclerinin genetik yap\u0131s\u0131n\u0131 ortaya \u00e7\u0131kard\u0131. Yakla\u015f\u0131k 10.000 y\u0131l \u00f6nceye tarihlenen \u00f6rnekler, erken d\u00f6nem tar\u0131m uygulamalar\u0131n\u0131n bu hayvanlar\u0131n evrimini nas\u0131l \u015fekillendirdi\u011fine dair veri sa\u011fl\u0131yor. Daha \u00f6nceki arkeolojik kal\u0131nt\u0131 \u00e7al\u0131\u015fmalar\u0131, \u0130ran\u2019\u0131n bat\u0131s\u0131ndaki Zagros Da\u011flar\u0131\u2019nda ya\u015fayan insanlar\u0131n ke\u00e7ileri evcille\u015ftirmesine dair en erken kan\u0131tlar\u0131n\u0131 sunmu\u015ftu. Yeni \u00e7al\u0131\u015fmada Ganj Dareh […]<\/p>\n","protected":false},"author":1390,"featured_media":50608,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[2463,3876,773,7755],"class_list":["post-50607","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-antik-dna","tag-evcillestirme","tag-genom","tag-keci"],"acf":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/50607","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=50607"}],"version-history":[{"count":0,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/posts\/50607\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media\/50608"}],"wp:attachment":[{"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/media?parent=50607"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/categories?post=50607"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bilimvegelecek.com.tr\/index.php\/wp-json\/wp\/v2\/tags?post=50607"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}