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Local origin or external input: modern horse origin in East Asia
Kunming Univ, Coll Agr, Kunming 650214, Yunnan, Peoples R China.;Yunnan Univ, Lab Conservat & Utilizat Bioresource, Kunming 650091, Yunnan, Peoples R China.;Yunnan Univ, Key Lab Microbial Resources, Minist Educ, Kunming 650091, Yunnan, Peoples R China..
Chinese Acad Agr Sci, Inst Anim Sci, Beijing 100193, Peoples R China.;Anhui Agr Univ, Coll Anim Sci & Technol, Hefei 230036, Anhui, Peoples R China..
Yunnan Univ, Inst Int Rivers & Ecosecur, Kunming 650214, Yunnan, Peoples R China..
KTH, School of Engineering Sciences in Chemistry, Biotechnology and Health (CBH), Gene Technology. KTH, Centres, Science for Life Laboratory, SciLifeLab.ORCID iD: 0000-0001-8604-5258
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2019 (English)In: BMC Evolutionary Biology, ISSN 1471-2148, E-ISSN 1471-2148, Vol. 19, no 1, article id 217Article in journal (Refereed) Published
Abstract [en]

Background Despite decades of research, the horse domestication scenario in East Asia remains poorly understood. Results The study identified 16 haplogroups with fine-scale phylogenetic resolution using mitochondrial genomes of 317 horse samples. The time to the most recent common ancestor of the 16 haplogroups ranges from [0.8-3.1] thousand years ago (KYA) to [7.9-27.1] KYA. With combined analyses of the mitochondrial control region for 35 extant Przewalski's horses, 3544 modern and 203 ancient horses across the world, researchers provide evidence for that East Asian prevalent haplogroups Q and R were indigenously domesticated or they were involved in numerous distinct genetic components from wild horses in the southern part of East Asia. These events of haplotypes Q and R occurred during 4.7 to 16.3 KYA and 2.1 to 11.5 KYA, respectively. The diffusion of preponderant European haplogroups L from west to East Asia is consistent with the external gene input. Furthermore, genetic differences were detected between northern East Asia and southern East Asia cohorts by Principal Component Analysis, Analysis of Molecular Variance test, the chi(2) test and phylogeographic analyses. Conclusions All results suggest a complex picture of horse domestication, as well as geographic pattern in East Asia. Both local origin and external input occurred in East Asia horse populations. And besides, there are at least two different domestication or hybridization centers in East Asia.

Place, publisher, year, edition, pages
BMC , 2019. Vol. 19, no 1, article id 217
Keywords [en]
Local origin, External input, Domestic horse, East Asia
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Biological Sciences
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URN: urn:nbn:se:kth:diva-265498DOI: 10.1186/s12862-019-1532-yISI: 000499941200002PubMedID: 31775623Scopus ID: 2-s2.0-85075778660OAI: oai:DiVA.org:kth-265498DiVA, id: diva2:1377934
Note

QC 20191213. QC 20200109

Available from: 2019-12-13 Created: 2019-12-13 Last updated: 2020-01-09Bibliographically approved

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Ardalan, ArmanSavolainen, Peter

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