2016 Fiscal Year Final Research Report
Investigation of prehistoric human movement and adaptation to islands based on ancient DNA analysis of Sus scrofa
| Project/Area Number |
26840157
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Physical anthropology
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| Research Institution | University of Yamanashi |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | 先史人類 / ancient DNA / イノシシ / ブタ / 島嶼地域 |
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| Outline of Final Research Achievements |
To understand prehistoric human movement and adaptation to Pacific islands, DNA analyses of Sus scrofa, often transported by prehistoric human as a food item, were carried out. DNA analysis of modern Ryukyu wild boar (RWB), one of the subspecies of wild boar inhabits the Ryukyu, show that all the individuals are genetically close to each other. This result suggests that RWB is derived from a single unique population. Ancient DNA (aDNA) analysis, however, revealed that some Sus samples from prehistoric sites in the Ryukyu had different genetic characteristics from RWB. In light of these results, there is a possibility that Sus scrofa with different genetic background from RWB was introduced to the Ryukyu during prehistoric times. To investigate the route and timing of human movement, aDNA analysis of Sus excavated from prehistoric sites in surrounding areas of Ryukyu was also attempted. However, nucleotide sequence of aDNA was not successfully amplified due to poor DNA preservation.
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| Free Research Field |
動物考古学
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