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​縄紋人全序首次被成功觧讀

縄纹人全序首次被成功觧读,甴日夲国⽴科斆簙物舘、国⽴遗传斆硏䆒㪽等7间硏䆒机闗聫手完成,傡于5月13日发表。採様源是北海道礼纹㠀舩泊遗迹发掘的3800年前的縄纹女性,从其𦥑歯中成功获得30亿对塩基配列。

结果表眀,东亰都民10%,阿依努人70%,冲縄人(琉球族)30%継𠄘了縄纹人的血綂,此㚈东亜沿㟁的部分民族也𠕇一定程度継𠄘,譬如一郶分韩国人及䑓湾𠩤住民阿羙族䒭。
至此发现的縄纹人的郶分軆徴𠕇:耵聍,毛髪浓宻,腋臭,捲毛,茶色瞳,非铲型闁歯,斑㸃肤质,深肤色,耐酒性髙,脂肪代谢弱,A型血率髙等。
 
関連記亊:
https://www.youtube.com/watch?v=sS3RGFop9IY
https://www3.nhk.or.jp/news/html/20190513/k10011914561000.html
2019-05-14 • 杭州, 浙江省, 中国
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13 个回复

无论论坛人气多么衰落,一有日本的话题还是会一如既往地吵起来
呀,又测了一个,这个测序质量应该很高了,北海道气候更有利于古dna保存
之前测的那个IK002绳纹人是在爱知县发掘的
湿耳垢、汗毛重,典型的南方人特征。
Unique characteristics of the Ainu population in Northern Japan
Timothy A Jinam, Hideaki Kanzawa-Kiriyama[…]Naruya Saitou
Journal of Human Genetics volume 60, pages 565–571 (2015)
Various genetic data (classic markers, mitochondrial DNAs, Y chromosomes and genome-wide single-nucleotide polymorphisms (SNPs)) have confirmed the coexistence of three major human populations on the Japanese Archipelago: Ainu in Hokkaido, Ryukyuans in the Southern Islands and Mainland Japanese. We compared genome-wide SNP data of the Ainu, Ryukyuans and Mainland Japanese, and found the following results: (1) the Ainu are genetically different from Mainland Japanese living in Tohoku, the northern part of Honshu Island;
(2) using Ainu as descendants of the Jomon people and continental Asians (Han Chinese, Koreans) as descendants of Yayoi people, the proportion of Jomon genetic component in Mainland Japanese was ~18% and ~28% in Ryukyuans; (3) the time since admixture for Mainland Japanese ranged from 55 to 58 generations ago, and 43 to 44 generations ago for the Ryukyuans, depending on the number of Ainu individuals with varying rates of recent admixture with Mainland Japanese;
(4) estimated haplotypes of some Ainu individuals suggested relatively long-term admixture with Mainland Japanese; and (5) highly differentiated genomic regions between Ainu and Mainland Japanese included EDAR and COL7A1 gene regions, which were shown to influence macroscopic phenotypes. These results clearly demonstrate the unique status of the Ainu and Ryukyuan people within East Asia.


总之,我这里说的北指的是相对于东南亚-南汉-北汉-这一条过渡链而言,是一种独特的成分。即使某人不愿意承认,那也绝不是南,因为离南汉和东南亚远于北汉和朝鲜半岛。至于某人拿非洲来举例,那完全就是逻辑谬误,因为非洲离北汉南汉都非常远,不存在这样的过渡链
就这样的过渡链而言,绳纹比弥生更“北”,从琉球人与本州人的pca图上就可以看出来,因为这处于过渡链的末端。弥生本身也是东北亚大陆族群,肯定也比某人瞎说的江浙(南北之间的华东汉人)要偏北多了
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大家不要吵🐶
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