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Mitochondrial DNA data indicate an introduction through Mainland Southeast Asia for Australian dingoes and Polynesian domestic dogs
KTH, Centres, Science for Life Laboratory, SciLifeLab. KTH, School of Biotechnology (BIO), Gene Technology.
KTH, Centres, Science for Life Laboratory, SciLifeLab. KTH, School of Biotechnology (BIO), Gene Technology.
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2012 (English)In: Proceedings of the Royal Society of London. Biological Sciences, ISSN 0962-8452, E-ISSN 1471-2954, Vol. 279, no 1730, 967-974 p.Article in journal (Refereed) Published
Abstract [en]

In the late stages of the global dispersal of dogs, dingoes appear in the Australian archaeological record 3500 years BP, and dogs were one of three domesticates brought with the colonization of Polynesia, but the introduction routes to this region remain unknown. This also relates to questions about human history, such as to what extent the Polynesian culture was introduced with the Austronesian expansion from Taiwan or adopted en route, and whether pre-Neolithic Australia was culturally influenced by the surrounding Neolithic world. We investigate these questions by mapping the distribution of the mtDNA founder haplotypes for dingoes (A29) and ancient Polynesian dogs (Arc1 and Arc2) in samples across Southern East Asia (n = 424) and Island Southeast Asia (n = 219). All three haplotypes were found in South China, Mainland Southeast Asia and Indonesia but absent in Taiwan and the Philippines, and the mtDNA diversity among dingoes indicates an introduction to Australia 4600-18 300 years BP. These results suggest that Australian dingoes and Polynesian dogs originate from dogs introduced to Indonesia via Mainland Southeast Asia before the Neolithic, and not from Taiwan together with the Austronesian expansion. This underscores the complex origins of Polynesian culture and the isolation from Neolithic influence of the pre-Neolithic Australian culture.

Place, publisher, year, edition, pages
The Royal Society , 2012. Vol. 279, no 1730, 967-974 p.
Keyword [en]
mitochondrial DNA, dingo, Polynesia, Australia, dog, haplotype
National Category
Developmental Biology
Identifiers
URN: urn:nbn:se:kth:diva-90894DOI: 10.1098/rspb.2011.1395ISI: 000299910400018Scopus ID: 2-s2.0-84856256905OAI: oai:DiVA.org:kth-90894DiVA: diva2:507978
Funder
Science for Life Laboratory - a national resource center for high-throughput molecular bioscience
Note
QC 20120307Available from: 2012-03-07 Created: 2012-03-05 Last updated: 2017-12-07Bibliographically approved
In thesis
1. Analysis of the origin and spread of the domestic dog using Y-chromosome DNA and mtDNA sequence data
Open this publication in new window or tab >>Analysis of the origin and spread of the domestic dog using Y-chromosome DNA and mtDNA sequence data
2012 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The domestic dog was probably the first domesticated animal, and the only one to spread to all continents in ancient times. The dog is one of the most phenotypically diverse animals, a result of human selection throughout dog history. Studies of the genetic origins and early spread of domestic dogs is important to gather information about biological and cultural mechanisms behind domestication but also to investigate early human history. The step from a hunter and gatherer lifestyle to farming is one of the most important steps in human history. In this thesis I will present work aimed at understanding both domestic dog origins and dispersal. In order to be able to investigate dog origins based on a second haploid chromosome we identified 14,437 bp of Y-chromosomal DNA sequence. Based on this we show that dogs in Asia south of Yangtze River (ASY) has the highest genetic diversity and was founded from a large number of wolf founders confirming earlier mtDNA results. Early dog dispersal is tightly coupled to human history with the dog brought along as a cultural item. We have for the first time investigated the dog dispersal into Polynesia and Australia and our data can be used as evidence for a more complex settlement of Polynesia than earlier indicated from archaeological and linguistic studies. Analysis of Y-chromosome SNPs in Australian dingoes confirms earlier mtDNA genetic studies that the dingo is part of the domestic dog phylogeny and was founded from a small population of domestic dogs. We have also for the first time investigated the dog population on Madagascar and our data strongly indicates a mainland African origin for the Madagascan dogs. Finally, we have investigated the American dog population sampled from throughout the continent and also for the first time included putative indigenous breed dogs such as Chihuahua and Pero Sín Pelo del Peru, and the free-ranging Carolina dogs from southern USA. Our data clearly indicates a primarily Old World origin for the indigenous breed dogs and also for the free-ranging Carolina dogs in USA. We can also for the first time present evidence for continuity between the ancient and extant dog population with e.g. exclusive sharing of a haplotype between a modern sample of Chihuahua and an ancient Mexican sample.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2012. 66 p.
Series
Trita-BIO-Report, ISSN 1654-2312 ; 2012:6
Keyword
mtDNA, domestication, Y-chromosome, SNP, ASY, dog, dingo
National Category
Other Industrial Biotechnology
Identifiers
urn:nbn:se:kth:diva-94145 (URN)978-91-7501-364-0 (ISBN)
Public defence
2012-05-25, Lennart Nilsson-salen, Nobels väg 15A, Solna, 13:00 (English)
Opponent
Supervisors
Funder
Swedish Research Council
Note
QC 20120510Available from: 2012-05-10 Created: 2012-05-08 Last updated: 2012-05-10Bibliographically approved

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Savolainen, Peter

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Oskarsson, Mattias C. R.Klütsch, Cornelya F. C.Savolainen, Peter
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