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Showing results for tags 'dna'.
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I am new to the forum and I am presenting ideas that I have been thinking about in relation to dinosaurs and dinosaur fossils. One idea that intrigues me is the idea of fossil DNA. I don't mean physical nucleotides that might be found in or around dinosaur fossils. I mean ancient DNA or RNA sequences that might be preserved in the "non-coding" DNA of the dinosaur descendants, birds. DNA and RNA are basically scripting languages for building and activating proteins. When we think of evolution, we mostly think in terms of the evolution of organisms
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Two ancient wolf populations contributed to origin of modern dogs
Oxytropidoceras posted a topic in Fossil News
Two ancient wolf populations which evolved into man’s best friend. DNA study closes in on solving the mystery of where and when dogs were domesticated. Imma Perfetto, Cosmos. The open access paper is: Bergström, A., Stanton, D.W., Taron, U.H., Frantz, L., Sinding, M.H.S., Ersmark, E., Pfrengle, S., Cassatt-Johnstone, M., Lebrasseur, O., Girdland-Flink, L. and Fernandes, D.M., 2022. Grey wolf genomic history reveals a dual ancestry of dogs. Nature, 607(7918), pp.313-320. Another article is: Shrinking bodies and shrinkin- 1 reply
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- eurasia
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Mammoths and other large animals survived in the north much longer than previously believed. New DNA research indicates that the climate, not humans, led to the demise of these large creatures, Norway Science, January, 2022 The open access paper is: Wang, Y., Pedersen, M.W., Alsos, I.G., De Sanctis, B., Racimo, F., Prohaska, A., Coissac, E., Owens, H.L., Merkel, M.K.F., Fernandez-Guerra, A. and Rouillard, A.,2021. Late Quaternary dynamics of Arctic biota from ancient environmental genomics. Nature, 600(7887), pp.86-92. It concludes t
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Molecular analysis reveals the oldest Denisovan fossils yet
Oxytropidoceras posted a topic in Fossil News
Molecular analysis reveals the oldest Denisovan fossils yet by Max Planck Society, PhyOrg, November 30, 2021 The paper is: Brown, S., Massilani, D., Kozlikin, M.B., Shunkov, M.V., Derevianko, A.P., Stoessel, A., Jope-Street, B., Meyer, M., Kelso, J., Pääbo, S. and Higham, T., 2021. The earliest Denisovans and their cultural adaptation. Nature Ecology & Evolution, pp.1-8. Yours, Paul H.-
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- peptide profiles
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Portion of Bear petrous bone yields DNA older than 300,000 years. Sheds new light on bear relationships. http://www.sci-news.com/paleontology/ursus-kudarensis-genome-09392.html
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First million-year-old DNA extracted from Siberian mammoth teeth
Oxytropidoceras posted a topic in Fossil News
Scientists analyse ‘world’s oldest DNA’ recovered from mammoth remains up to 1.2 million years old By April Roach, Evening Standard, February 17, 2021 First million-year-old DNA extracted from Siberian mammoth teeth By Michael Marshall, New Scientist, February 2021 The paper is: van der Valk, T., Pečnerová, P., Díez-del-Molino, D. et al. Million-year-old DNA sheds light on the genomic history of mammoths. Nature (2021). https://doi.org/10.1038/s41586-021-03224-9 Yours, Paul H.-
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- mammoths
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Giant lungfish genome elucidates the conquest of land by vertebrates
Oxytropidoceras posted a topic in Fossil News
The Massive Genome of The Lungfish May Explain How We Made The Leap to Land The open access paper is; Meyer, A., Schloissnig, S., Franchini, P. et al. Giant lungfish genome elucidates the conquest of land by vertebrates. Nature (2021). https://doi.org/10.1038/s41586-021-03198-8 Yours, Paul H.-
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DNA Reveals the Real Lives of ‘Game of Thrones’ Dire Wolves https://www.nytimes.com/2021/01/13/science/dire-wolf-genome.html?surface=home-discovery-vi-prg&fellback=false&req_id=808114446&algo=identity&variant=no-exp&imp_id=72616698&action=click&module=Science Technology&pgtype=Homepage
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Monozygotic newborn twins from the Upper Palaeolithic of Austria
Oxytropidoceras posted a topic in Fossil News
Babies buried under a mammoth-bone lid are the oldest known identical twins, Nature, November 11, 2020 https://www.nature.com/articles/d41586-020-03184-6 Krems-Wachtberg–A Gravettian Settlement Site https://www.orea.oeaw.ac.at/en/research/quartaerarchaeologie/krems-wachtberg/ The Krems-Wachtberg Pavlovian site https://www.donsmaps.com/mammothsite.html Papers are: Teschler-Nicola, M., Fernandes, D., Händel, M., Einwögerer, T., Simon, U., Neugebauer-Maresch, C., Tangl, S., Heimel, P., Dobsak, T., Retzmann, A. and Pr-
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Dogs were domesticated once from a lost population of wolves
Oxytropidoceras posted a topic in Fossil News
Dogs were domesticated once from a lost population of wolves Our history with dogs is complicated, according to a study of ancient dog DNA.Kiona N. Smith, Ares technica, Oct. 29, 2020 Anders Bergström1, Laurent Frantz, Ryan Schmidt, and others 2020, Origins and genetic legacy of prehistoric dogs Science 30 Oct 2020: Vol. 370, Issue 6516, pp. 557-564 Yours,, Paul H. -
14,000 year old puppy (could be wolf or dog) found frozen had a chunk of woolly Rhino meat in its stomach as determined by DNA. https://www.cnn.com/2020/08/17/europe/woolly-rhino-puppy-intl-scli-scn/index.html
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Ancient DNA from Doggerland and the Storegga Tsunami Breakthrough in studying ancient DNA from Doggerland that separates the UK from Europe, University of Warwick, July 16, 2020 Link to article Scientists have studied sedimentary ancient DNA (sedaDNA) from sediment deposits in the southern North Sea, an area which has not previously been linked to a tsunami that occurred 8150 years ago. The paper is: Gaffney, V., Fitch, S., Bates, M., and others, 2020. Multi-Proxy Characterisation of the Storegga Tsunami and Its
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Well, if we ever revive the mammoth we can add a little bird to its enclosure. 46 thousand year old horned lark DNA has been extracted from this fossil. https://m.phys.org/news/2020-02-frozen-bird-year-old-horned-lark.html
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Ancient DNA reveals ‘profoundly different’ human landscape in prehistoric Africa
Oxytropidoceras posted a topic in Fossil News
'Ghost' population of humans discovered in ancient Africa By Laura Geggel, Live Science, January 22, 2020 https://www.livescience.com/ancient-dna-sub-saharan-africa.html DNA from child burials reveals ‘profoundly different’ human landscape in ancient Africa By Ann Gibbons, science News, January 22, 2020 https://www.sciencemag.org/news/2020/01/dna-child-burials-reveals-profoundly-different-human-landscape-ancient-africa Lipson, M., Ribot, I., Mallick, S., Rohland, N., Olalde, I., Adamski, N., Broomandkhoshbacht, N., Lawson, A.M., Lópe -
From chewing gum.............. https://www.bbc.com/news/science-environment-50809586
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I guess this my 2nd #2 post today. https://m.phys.org/news/2019-08-prehistoric-puma-poo-reveals-oldest.html
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New area for Neanderthal genetics studies https://m.phys.org/news/2019-07-ancient-dna-neanderthal-fossils-gibraltar.html
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Good article. The British hunter-gatherers were almost completely replaced by the Neolithic farmers, apart from one group in western Scotland. https://www.bbc.co.uk/news/science-environment-47938188
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Yukon paleontologist’s fossils are pure gold: Grant Zazula will be giving the 19th annual Dr. John Rae Lecture in Hamilton, focusing on the amazing lode of fossils and ancient DNA in the Yukon, and its connection with the hunt for gold. by Jeff Mahoney, The Hamilton Spectator https://www.thespec.com/opinion-story/9117772-yukon-paleontologist-s-fossils-are-pure-gold/ Paul H.
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Evidence of the Earliest Domestic Dogs in the Americas (With Cat Article Addendum)
Oxytropidoceras posted a topic in Fossil News
Perri, A., Widga, C., Lawler, D., Martin, T., Loebel, T., Farnsworth, K., Kohn, L. and Buenger, B., 2018. New Evidence of the Earliest Domestic Dogs in the Americas. bioRxiv, p.343574. https://www.biorxiv.org/content/early/2018/06/27/343574 https://www.biorxiv.org/content/biorxiv/early/2018/06/11/343574.full.pdf https://www.academia.edu/38045438/_American_Antiquity_2019_New_Evidence_of_the_Earliest_Dogs_in_the_Americas Leathlobhair, M.N., Perri, A.R., Irving-Pease, E.K., Witt, K.E., Linderholm, A., Haile, J., Lebrasseur, O., Ameen, C., Blick-
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- paleoindian
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The September, Volume 18, Number 4, of the issue of the SAA Archaeological Record has series of review papers about the use of DNA and genetics in studying prehistoric and historic mammals and their past interactions with human beings. The PDF file of this issue is at: http://www.saa.org/Portals/0/SAA/Publications/thesaaarchrec/SAA Record Sept 2018 WEB 9.13.18.pdf http://www.saa.org/AbouttheSociety/Publications/TheSAAArchaeologicalRecord/tabid/64/Default.aspx The papers are: Sea Change? New Directions in Marine Mammal Research by Camilla F. S
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- cetaceans
- marine mammals
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A Brand-New Version of Our Origin Story New York Times, By Jared Diamond https://www.nytimes.com/2018/04/20/books/review/david-reich-who-we-are-how-we-got-here.html The lecture about the book is: Ancient DNA and the New Science of the Human Past https://www.youtube.com/watch?v=990052wQywM https://www.youtube.com/watch?v=fHdCuhYRHqo David Reich, Professor, Department of Genetics, Harvard Medical School; Investigator, Howard Hughes Medical Institute; Senior Associate Member, Broad Institute of Harvard and MIT Harvard
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- genomics
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https://www.sciencealert.com/climate-change-probably-slayed-the-siberian-unicorn https://cosmosmagazine.com/palaeontology/unicorns-did-exist-until-they-didn-t
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Dinosaur DNA But the researchers behind the DNA work say they have no plans to recreate dinosaurs, Jurassic Park style. https://www.bbc.co.uk/news/science-environment-44711974
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On the use and abuse of ancient DNA. Researchers in several disciplines need to tread carefully over shared landscapes of the past. Ewen Callaway, Nature. March 18, 2018 https://www.nature.com/articles/d41586-018-03773-6 Some related articles are: Editorial: On the use and abuse of ancient DNA. Researchers in several disciplines need to tread carefully over shared landscapes of the past. Nature 555, 559 (2018) https://www.nature.com/articles/d41586-018-03857-3 sex, power and ancient DNA. Turi King hails David Reich’s thrilling
