Ancient genomes reveal over two thousand years of dingo population structure.

Autor:	Souilmi Y; Australian Centre for Ancient DNA, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia.; The Environment Institute, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia., Wasef S; Ancient DNA Facility, Defence Genomics, Genomics Research Centre, Queensland University of Technology, Kelvin Grove, QLD 4059, Australia.; Innovation Division, Forensic Science Queensland, Queensland Health, Coopers Plains, QLD 4108, Australia., Williams MP; Australian Centre for Ancient DNA, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia.; Department of Biology, The Pennsylvania State University, State College, PA 16802., Conroy G; School of Science, Technology and Engineering, University of the Sunshine Coast, Maroochydore, QLD 4556, Australia.; Centre for Bioinnovation, University of the Sunshine Coast, Maroochydore, QLD 4556, Australia., Bar I; Centre for Planetary Health and Food Security, School of Environment and Science, Griffith University, Nathan, QLD 4111, Australia., Bover P; Fundación Agencia Aragonesa para la Investigacióny el Desarrollo (ARAID), Zaragoza 50018, Spain.; Instituto Universitario de Investigación en Ciencias Ambientales de Aragón (IUCA)-Grupo Aragosaurus, Universidad de Zaragoza, Zaragoza 50009, Spain., Dann J; Grützner Laboratory of Comparative Genomics, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia., Heiniger H; Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage (CABAH), Adelaide SA 5005, Australia., Llamas B; Australian Centre for Ancient DNA, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia.; Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage (CABAH), Adelaide SA 5005, Australia.; National Centre for Indigenous Genomics, John Curtin School of Medical Research, Australian National University, Acton ACT 2601, Australia.; Indigenous Genomics, Telethon Kids Institute, Adelaide, SA 5000, Australia., Ogbourne S; Centre for Bioinnovation, University of the Sunshine Coast, Maroochydore, QLD 4556, Australia., Archer M; Earth and Sustainability Science Research Centre, School of Biological, Earth & Environmental Sciences, University of New South Wales Sydney, Sydney NSW 2052, Australia., Ballard JWO; School of Biosciences, University of Melbourne, Royal Parade, Parkville, VIC 3052, Australia., Reed E; Ecology and Evolutionary Biology, School of Biological Sciences, The University of Adelaide, Adelaide SA 5005, Australia., Tobler R; Australian Centre for Ancient DNA, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia.; Evolution of Cultural Diversity Initiative, School of Culture, History and Language, College of Asia and the Pacific, The Australian National University, Acton, ACT 2601, Australia., Koungoulos L; Archaeology and Natural History, School of Culture, History and Language, College of Asia and the Pacific, Australian National University, Acton, ACT 2601, Australia.; Australian Museum Research Institute, Australian Museum, Sydney, NSW 2010, Australia.; Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage, The Australian National University, Acton, ACT 2601, Australia., Walshe K; School of Anthropology and Archaeology, University of Auckland, Auckland 1010, New Zealand., Wright JL; Queensland Department of Education, Kelvin Grove State College, Kelvin Grove, QLD 4059, Australia., Balme J; School of Social Sciences, University of Western Australia, Crawley, WA 6009, Australia., O'Connor S; Archaeology and Natural History, School of Culture, History and Language, College of Asia and the Pacific, Australian National University, Acton, ACT 2601, Australia.; Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage, The Australian National University, Acton, ACT 2601, Australia., Cooper A; Gulbali Institute, Charles Sturt University, Albury, NSW 2640, Australia., Mitchell KJ; Australian Centre for Ancient DNA, School of Biological Sciences, The University of Adelaide, Adelaide, SA 5005, Australia.; Australian Research Council Centre of Excellence for Australian Biodiversity and Heritage (CABAH), Adelaide SA 5005, Australia.; Manaaki Whenua-Landcare Research, Lincoln, Canterbury 7608, New Zealand.
Jazyk:	angličtina
Zdroj:	Proceedings of the National Academy of Sciences of the United States of America [Proc Natl Acad Sci U S A] 2024 Jul 23; Vol. 121 (30), pp. e2407584121. Date of Electronic Publication: 2024 Jul 08.
DOI:	10.1073/pnas.2407584121
Abstrakt:	Dingoes are culturally and ecologically important free-living canids whose ancestors arrived in Australia over 3,000 B.P., likely transported by seafaring people. However, the early history of dingoes in Australia-including the number of founding populations and their routes of introduction-remains uncertain. This uncertainty arises partly from the complex and poorly understood relationship between modern dingoes and New Guinea singing dogs, and suspicions that post-Colonial hybridization has introduced recent domestic dog ancestry into the genomes of many wild dingo populations. In this study, we analyzed genome-wide data from nine ancient dingo specimens ranging in age from 400 to 2,746 y old, predating the introduction of domestic dogs to Australia by European colonists. We uncovered evidence that the continent-wide population structure observed in modern dingo populations had already emerged several thousand years ago. We also detected excess allele sharing between New Guinea singing dogs and ancient dingoes from coastal New South Wales (NSW) compared to ancient dingoes from southern Australia, irrespective of any post-Colonial hybrid ancestry in the genomes of modern individuals. Our results are consistent with several demographic scenarios, including a scenario where the ancestry of dingoes from the east coast of Australia results from at least two waves of migration from source populations with varying affinities to New Guinea singing dogs. We also contribute to the growing body of evidence that modern dingoes derive little genomic ancestry from post-Colonial hybridization with other domestic dog lineages, instead descending primarily from ancient canids introduced to Sahul thousands of years ago. Competing Interests: Competing interests statement:The authors declare no competing interest.
Databáze:	MEDLINE
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