\u00c7in Bilimler Akademisi\u2019nden ara\u015ft\u0131rmac\u0131lar ile \u0130ngiliz biliminsanlar\u0131n\u0131n kat\u0131l\u0131m\u0131 ile yap\u0131lan \u00e7al\u0131\u015fmada, yakla\u015f\u0131k 609 milyon y\u0131l \u00f6nce ya\u015fad\u0131\u011f\u0131 d\u00fc\u015f\u00fcn\u00fclen \u00e7ok h\u00fccreli bir organizman\u0131n fosiline odaklan\u0131ld\u0131.<\/p>\n
\u00c7in\u2019in g\u00fcneyinde bulunan Guizhou\u2019da yer alan 609 milyon y\u0131ll\u0131k kayalarda bulunan \u00e7ok h\u00fccreli bir organizma olan Caveasphaera, yar\u0131m milimetre \u00e7ap\u0131nda bir canl\u0131. Bu nedenle bu canl\u0131n\u0131n h\u00fccrelerinin incelenmesi i\u00e7in X \u0131\u015f\u0131n\u0131 mikroskobu kullan\u0131ld\u0131.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar, hayvanlar\u0131n evriminde kilit rol oynayan dokular\u0131n ve organlar\u0131n geli\u015fimi hakk\u0131nda en eski evrimsel kan\u0131tlardan birini sunan ve embiyolojik \u00f6zelliklerin geli\u015fimi hakk\u0131nda bilgiler sa\u011flayan bu organizmaya odaklanarak yeni bir \u00e7al\u0131\u015fmaya imza att\u0131. Paul Scherrer Enstit\u00fcs\u00fc’nden Dr. Federica Marone, \u201cBu \u00e7al\u0131\u015fma fosil kal\u0131nt\u0131lar\u0131nda korunabilecek her t\u00fcrl\u00fc \u00f6zelli\u011fi ayr\u0131nt\u0131lar\u0131yla ortaya \u00e7\u0131kar\u0131yor. Ayn\u0131 zamanda bu \u00e7al\u0131\u015fma, bu \u00f6zelliklerin ortaya \u00e7\u0131k\u0131\u015f\u0131nda \u00f6nemli bir noktada duran X-\u0131\u015f\u0131n\u0131 mikroskoplar\u0131n\u0131n \u00f6nemine \u0131\u015f\u0131k tutuyor\u201d dedi.<\/p>\n
Bristol \u00dcniversitesi’nde \u00e7al\u0131\u015fma y\u00fcr\u00fcten biliminsan\u0131 Dr. Kelly Vargas, \u201cCaveasphaera’n\u0131n embriyolojisini anlamak i\u00e7in elde etti\u011fimiz h\u00fccreleri yeniden yap\u0131land\u0131rd\u0131k ve bu h\u00fccreleri b\u00fcy\u00fcme evrelerine g\u00f6re s\u0131n\u0131fland\u0131rd\u0131k\u201d a\u00e7\u0131klamalar\u0131nda bulundu.<\/p>\n
\u00c7al\u0131\u015fmaya katk\u0131 sunan biliminsanlar\u0131ndan biri olan Dr. Yin, \u201cBu \u00e7al\u0131\u015fma ile elde etti\u011fimiz sonu\u00e7lar, Caveasphaera’n\u0131n h\u00fccrelerinin embriyonik geli\u015fim s\u0131ras\u0131nda insanlar\u0131n da dahil oldu\u011fu di\u011fer hayvanlar ile ayn\u0131 mekanizmaya sahip oldu\u011funu g\u00f6steriyor. Ancak bu embriyolar\u0131n, daha karma\u015f\u0131k organizmalara d\u00f6n\u00fc\u015ft\u00fc\u011f\u00fcne dair bir kan\u0131t\u0131m\u0131z bulunmuyor a\u00e7\u0131klamalar\u0131nda bulundu.<\/p>\n
Current Biology portal\u0131nda yay\u0131nlanan \u00e7al\u0131\u015fmaya g\u00f6re Caveasphaera, tek h\u00fccreleri canl\u0131lar ile \u00e7ok h\u00fccreleri canl\u0131lar aras\u0131nda bir noktaya yerle\u015ftirilebilecek bir ya\u015fam d\u00f6ng\u00fcs\u00fcne sahipti. \u0130sve\u00e7 Do\u011fa Tarihi M\u00fczesi’nden Dr. Stefan Bengtson, \u201cCaveasphaera, hayvanlar\u0131n evriminin anla\u015f\u0131lmas\u0131 a\u00e7\u0131s\u0131ndan olduk\u00e7a b\u00fcy\u00fck bir \u00f6neme sahip. Farkl\u0131 doku ve organlar\u0131n geli\u015fimini anlayabilmemiz i\u00e7in \u00f6nemli kan\u0131tlar sunuyor\u201d dedi.<\/p>\n
Kaynak:<\/strong> http:\/\/www.sci-news.com\/biology\/caveasphaera-animal-like-embryos-07850.html \u00c7in Bilimler Akademisi\u2019nden ara\u015ft\u0131rmac\u0131lar ile \u0130ngiliz biliminsanlar\u0131n\u0131n kat\u0131l\u0131m\u0131 ile yap\u0131lan \u00e7al\u0131\u015fmada, yakla\u015f\u0131k 609 milyon y\u0131l \u00f6nce ya\u015fad\u0131\u011f\u0131 d\u00fc\u015f\u00fcn\u00fclen \u00e7ok h\u00fccreli bir organizman\u0131n fosiline odaklan\u0131ld\u0131. \u00c7in\u2019in g\u00fcneyinde bulunan Guizhou\u2019da yer alan 609 milyon y\u0131ll\u0131k kayalarda bulunan \u00e7ok h\u00fccreli bir organizma olan Caveasphaera, yar\u0131m milimetre \u00e7ap\u0131nda bir canl\u0131. Bu nedenle bu canl\u0131n\u0131n h\u00fccrelerinin incelenmesi i\u00e7in X \u0131\u015f\u0131n\u0131 […]<\/p>\n","protected":false},"author":1390,"featured_media":38824,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[19],"tags":[5627,1157,200,816,5628],"class_list":["post-38823","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bilim-gundemi","tag-caveasphaera","tag-embriyo","tag-evrim","tag-fosil","tag-x-isini-mikroskobu"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t
\nhttps:\/\/cosmosmagazine.com\/palaeontology\/it-looks-like-an-animal-but<\/p>\n","protected":false},"excerpt":{"rendered":"