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Ancient DNA Analysis of Palaeolithic Ryukyu Islanders

Ken-ichi Shinoda and Noboru Adachi



Ishigaki Island is one of the westernmost islands in Japan

. Due to its geographical location, it is considered to have played a significant role in the migration route from Southern Asia to the Japanese archipelagos. Recently, human remains were excavated from Shiraho-Saonetabaru Cave, constituting the first physical evidence of human occupation on Ishigaki Island. In order to investigate the genetic makeup of the ancient Ishigaki people and to assess their genetic relationship with other Asian populations at a molecular level, we analysed the single nucleotide polymorphisms of the coding region of mtDNA that defines the haplogroups of these individuals. Because of the poor quality of the DNA extracted from the ancient material, it was not possible to analyse all samples.


Among the 10 samples considered in this study, ancient DNA data was successfully extracted from five individuals

.

MtDNA haplogroups show geographic specificity within Asia; the existence of haplogroup B4e and M7a in this population hints at their linkage with Southeast Asia and the Late Pleistocene Ryukyu Islands.

http://press-files.anu.edu.au/downloads/press/n2320/html/ch03.xhtml?referer=&page=10
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三界无安,犹如火宅。众苦充满,甚可怖畏
                            --------《法华经》
是以法从心生。名因法立
                      ------------《宗镜录》
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2017-5-4 12:32


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2017-5-4 12:32
NRY: O2a1c1a1a1a1a1a1-002611,F11,F17,F856,F1495(源自粤西云浮)
mtDNA:B4d1(源自浙北慈溪)
百越人的人类学文集 http://blog.sina.com.cn/baiyueren
本帖最后由 baiyueren 于 2017-5-4 13:03 编辑

12号人骨的碳14年代测定为2万多年前。测出mt-B4e,13号也是2万多年前,属于mt-R,但难以确定是哪个下游哪个分支;
242、292、188号人骨的碳14年代分别为大约2万年前、9000-1.6万年前、4000年前。可见mt-M7a在琉球从史前到晚近时期是一直存在的土著成分。
NRY: O2a1c1a1a1a1a1a1-002611,F11,F17,F856,F1495(源自粤西云浮)
mtDNA:B4d1(源自浙北慈溪)
百越人的人类学文集 http://blog.sina.com.cn/baiyueren
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