{"id":6705,"date":"2017-03-09T18:21:39","date_gmt":"2017-03-09T21:21:39","guid":{"rendered":"https:\/\/blog.mindthegraph.com\/?p=6705"},"modified":"2022-10-18T08:10:40","modified_gmt":"2022-10-18T11:10:40","slug":"stars-family-tree","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/fi\/stars-family-tree\/","title":{"rendered":"Puhutaanpa t\u00e4hdist\u00e4, joilla on sukupuu, -"},"content":{"rendered":"<p>Mik\u00e4 on sukupuu?<\/p>\n<p>Tieteess\u00e4 biologit, geneetikot, ekologit jne. ovat laajalti k\u00e4ytt\u00e4neet sukupuita,, jotta yksil\u00f6iden v\u00e4liset vanhempien v\u00e4liset yhteydet voidaan esitt\u00e4\u00e4 visuaalisemmalla tavalla. Sukupuu voi perustua melkein mihin tahansa ominaisuuteen, jonka tutkija haluaa. Nyky\u00e4\u00e4n k\u00e4ytet\u00e4\u00e4n kuitenkin p\u00e4\u00e4asiassa DNA:ta.<\/p>\n<p>Kun ajattelemme DNA:ta, ajattelemme el\u00e4imi\u00e4, kasveja, bakteereja, sieni\u00e4 ja muita tieteess\u00e4 melko tuttuja ryhmi\u00e4. Mutta ent\u00e4 jos muillakin asioilla voisi olla DNA:ta? Sanotaanpa, ett\u00e4 my\u00f6s t\u00e4hdet voitaisiin analysoida DNA:nsa perusteella ja saada jopa oma sukupuu.<\/p>\n<p>T\u00e4m\u00e4 keskustelu on alkanut kahden tiedemiehen, t\u00e4htitieteilij\u00e4n ja biologin, kanssa. T\u00e4htitieteilij\u00e4, <a href=\"https:\/\/academic.oup.com\/mnras\/article\/2966869\/Cosmic\">\u00a0Tohtori Paula Jofr\u00e9 Cambridgen yliopistosta.<\/a>, sai h\u00e4mm\u00e4stytt\u00e4v\u00e4n idean analysoida t\u00e4hti\u00e4 samalla tavalla kuin biologit el\u00e4inlajeja ja rakentaa Linnunradan t\u00e4htien sukupuu.<\/p>\n<p><iframe loading=\"lazy\" title=\"T\u00e4htitieteilij\u00e4t tekiv\u00e4t galaksimme t\u00e4htien sukupuun\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/HZq1dLuhjMg?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/p>\n<p>Tohtori Paula Jofr\u00e9 ja h\u00e4nen ryhm\u00e4ns\u00e4 valitsivat 22 t\u00e4hte\u00e4 (Aurinko mukaan luettuna) ja tutkivat niiden sis\u00e4lt\u00e4mi\u00e4 kemikaaleja, ik\u00e4\u00e4 ja liikett\u00e4. Kun kaikki n\u00e4m\u00e4 tiedot oli ker\u00e4tty, he l\u00f6ysiv\u00e4t kolme p\u00e4\u00e4haaraa, joihin t\u00e4hdet voitiin jakaa.<\/p>\n<p>Mutta miten DNA liittyy t\u00e4h\u00e4n kaikkeen?<\/p>\n<p>T\u00e4hdet, jotka ovat syntyneet samassa kaasupilvess\u00e4, ovat rakenteeltaan samanlaisia. T\u00e4t\u00e4 koostumusta kutsutaan \"t\u00e4htien DNA:ksi\". Koska joillakin analysoiduilla t\u00e4hdill\u00e4 ei ollut samankaltaista t\u00e4hti-DNA:ta kuin kolmella l\u00f6ydetyll\u00e4 haaralla, on mahdollista, ett\u00e4 jotkin t\u00e4hdet tulivat eri galaksista. N\u00e4m\u00e4 t\u00e4hdet ovat saattaneet imeyty\u00e4 Linnunrataan, eik\u00e4 niill\u00e4 ole sisarust\u00e4hti\u00e4.<\/p>\n<p><a href=\"https:\/\/academic.oup.com\/mnras\/article\/2966869\/Cosmic\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-6714 size-full\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2017\/03\/preview-1424544235.jpg\" alt=\"Puhutaanpa t\u00e4hdist\u00e4, joilla on sukupuu, -\" width=\"719\" height=\"464\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2017\/03\/preview-1424544235.jpg 719w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2017\/03\/preview-1424544235-300x194.jpg 300w\" sizes=\"(max-width: 719px) 100vw, 719px\" \/><\/a><\/p>\n<p>T\u00e4m\u00e4 on tietenkin vain aavistus. Etenkin jos otetaan huomioon, ett\u00e4 tohtori Paula Jofr\u00e9 analysoi vain 22 t\u00e4hte\u00e4 galaksissamme olevista 100 miljardista t\u00e4hdest\u00e4. Joten kyll\u00e4, lis\u00e4tutkimukset ovat paikallaan, jotta voidaan alkaa tehd\u00e4 oletuksia.<\/p>\n<p>Tutkimuksen viesti on kuitenkin selv\u00e4 ja selke\u00e4: \u00e4l\u00e4 pelk\u00e4\u00e4 oppia eri aloilta. Ehk\u00e4 ratkaisu ongelmiin tai yksinkertaisesti parempi tapa tarkastella asioita voi olla aivan vieress\u00e4si. Tai tohtori Paula Jofr\u00e9n tapauksessa aivan seuraavalla yliopiston osastolla.<\/p>\n<p><a href=\"https:\/\/blog.mindthegraph.com\/scientific-data\/\"><img decoding=\"async\" loading=\"lazy\" class=\"aligncenter wp-image-5826\" src=\"https:\/\/blog.mindthegraph.com\/wp-content\/uploads\/2016\/06\/i-love-science.png\" alt=\"Puhutaanpa t\u00e4hdist\u00e4, joilla on sukupuu, -\" width=\"327\" height=\"131\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2016\/06\/i-love-science.png 1500w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2016\/06\/i-love-science-300x120.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2016\/06\/i-love-science-1024x410.png 1024w\" sizes=\"(max-width: 327px) 100vw, 327px\" \/><\/a><\/p>","protected":false},"excerpt":{"rendered":"<p>Mik\u00e4 on sukupuu? Biologit, geneetikot, ekologit jne. ovat tieteess\u00e4 k\u00e4ytt\u00e4neet laajalti sukupuita,, jotta yksil\u00f6iden v\u00e4liset vanhempien v\u00e4liset yhteydet voidaan esitt\u00e4\u00e4 visuaalisemmalla tavalla. Sukupuu voi perustua melkein mihin tahansa ominaisuuteen, jonka tutkija haluaa. Nyky\u00e4\u00e4n k\u00e4ytet\u00e4\u00e4n kuitenkin p\u00e4\u00e4asiassa DNA:ta. Kun ajattelemme [...]<\/p>","protected":false},"author":4,"featured_media":6714,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"image","meta":[],"categories":[959,28],"tags":[554],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Let&#039;s talk about stars having a family tree - Mind the Graph Blog<\/title>\n<meta name=\"description\" content=\"What if other things could have DNA too? Let&#039;s say stars could also be analyzed by their DNA and even get a family tree of their own.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/fi\/stars-family-tree\/\" \/>\n<meta property=\"og:locale\" content=\"fi_FI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Let&#039;s talk about stars having a family tree - Mind the Graph Blog\" \/>\n<meta property=\"og:description\" content=\"What if other things could have DNA too? 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He has a Ph.D. and solid scientific background in Psychopharmacology and experience as a Guest Researcher at the Max Planck Institute of Psychiatry (Germany) and Researcher in D'Or Institute for Research and Education (IDOR, Brazil). Fabricio holds over 2500 citations in Google Scholar. He has 10 years of experience in small innovative businesses, with relevant experience in product design and innovation management. Connect with him on LinkedIn - Fabricio Pamplona.","sameAs":["http:\/\/mindthegraph.com","https:\/\/www.linkedin.com\/in\/fabriciopamplona"],"url":"https:\/\/mindthegraph.com\/blog\/fi\/author\/fabricio\/"}]}},"_links":{"self":[{"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/posts\/6705"}],"collection":[{"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/comments?post=6705"}],"version-history":[{"count":10,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/posts\/6705\/revisions"}],"predecessor-version":[{"id":6716,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/posts\/6705\/revisions\/6716"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/media\/6714"}],"wp:attachment":[{"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/media?parent=6705"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/categories?post=6705"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mindthegraph.com\/blog\/fi\/wp-json\/wp\/v2\/tags?post=6705"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}