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The mysterious culture of Upper Xiajiadian of Xilamulun and Laoha rivers and the slightly earlier Weiyingzi culture of the Linghe rivers… Who were they?
Since 1987 the understanding of the Upper Xiajiadian culture and its external connections and similarities expanded completely and was redefined.
Sample name WLR_BA (West Liao River Bronze Age)
91KLH18 内蒙古赤峰市龙头山遗址 夏家店上层文化 1000-600 BC
AU number
AU34727
Sample Type
Ancient
Reference assembly
hg19 / GRCh37
Y-haplogroup
N-Y125670
MT-haplogroup
D4j14
Gender
Male
Quality
Coverage: 20.32% Average Depth: 1
Scientific institution
Country
中国
Native place
龙头山遗址位于赤峰市克什克腾旗土城子镇南 6 千米处的龙头山北坡,东邻西拉木 伦河支流苇塘河。
Ancient culture
Upper XiaJiaDian 夏家店上层文化
Ancient period
2851-2775 cal BP
Data source
Ancient genomes from northern China suggest links between subsistence changes and human migration https://www.nature.com/articles/s41467-020-16557-2
Two WLR_BA (West Liao River Bronze Age) samples were carefully chosen to represent the local Xilamulun (Upper Xiajiadian Longtoushan) population. One of them predates the introduction of Bronze Daggers, the other slightly postdates the introduction of Bronze Daggers, but they cluster together. If one of them arrived with Bronze Daggers, clustering together would not be possible. One should not exaggerate the uniqueness of WLR_BA samples; despite their uniparentals, they are already not too alien to the Yellow River samples on “tighter” PCAs, at least in Chao Ning’s article. The Laoha river population should be expected to be more deeply influenced by the Gaotaishan culture migrants, whose ancestors came from the area of Liaodong slightly closer to Korea. The WLR_BA_outlier (the Amur ancestry) judging by the source of “Amur-related” archaeological materials in the Xilamulun river basin of that period, probably came from the Nen River Basin (the Heilongjiang/Amur River Basin). Is it possible that he might have been somehow autosomally similar to the Xituanshan culture (the purported ancestor of the Puyo State)? Maybe this motivated the choice of WLR_BA_outlier to autosomally model the Yayoi culture population in Japan in “Tripartite structure” article.
WLR_BA_outlier Sample name
91KLM2 内蒙古赤峰市龙头山遗址 夏家店上层文化 ~3000-2300ybp
AU number
AU40335
Sample Type
Ancient
Reference assembly
hg19 / GRCh37
Y-haplogroup
C-F9721
MT-haplogroup
B4c1a2
Gender
Male
Quality
Coverage: 44.09% Average Depth: 1
Scientific institution
Country
中国
Native place
LongTouShan 龙头山遗址位于赤峰市克什克腾旗土城子镇南 6 千米处的龙头山北坡,东邻西拉木 伦河支流苇塘河。
Ancient culture
Upper XiaJiaDian
Ancient period
3000-2300 BP
Data source
Ancient genomes from northern China suggest links between subsistence changes and human migration https://www.nature.com/articles/s41467-020-16557-2
The Upper Xiajiadian culture in the narrow sense started from the Xilamulun River basin (including the Longtoushan site and Dajing copper mine) and later distributed to the Laoha River Basin and started to influence nearby cultures.
The mystery of the Upper Xiajiadian culture is the cultural factors of the Late Shang Dynasty in the Xilamulun River Basin which are slightly older than the Upper Xiajiadian culture. The Pre-Upper Xiajiadian Late Shang Dynasty cultural factors are presumed to be transmitted by the way of the more southern slightly older Weiyingzi culture. The neighbors of the Weiyingzi culture, the Baifu M2 and M3 rich tombs where people were buried in Weiyingzi-like wooden coffins, represent the local elites who partially adopted Late Shang Dynasty traditions (for example, dog burials, one dog burial is later found in the earliest known site of the Upper Xiajiadian culture), but mixed them with local traditions. The elites buried in the Baifu site adopted one type of Bronze Daggers from the more westerly Xiaohenan site to the northwest of Beijing (Xiaohenan is probably connected to the expansion of peoples later known as Shanrong). Bronze Daggers of this type are thought to be brought from the Karasuk culture of Russia, but its prototype for the Karasuk culture is thought by several researchers to come from the territory of China. Two of the described Bronze Daggers from the M3 tomb of the member of the elite buried in the Baifu site are thought to become a prototype for the main diagnostic bronze daggers of the Upper Xiajiadian culture, which distributed from the Longtoushan site to the Laoha River basin sites and later appeared in more southern places.
Meanwhile, the Shanrong tribes of the Yuhuangmiao culture fought with the state of Yan during the Zhou Dynasty. At a certain period the Yan state extended its influence as far as part of the older Weiyingzi culture territory, but the shrinkage of Yan’s archaeological presence on the territory of the Weiyingzi culture was accompanied by stregthening of the Upper Xiajiadian archaeological presence on the territory of the Weiyingzi culture. The Upper Xiajiadian culture did not experience direct losses from the state of Yan, because the Upper Xiajiadian was separated and defended by mountains inhabited by Shanrong of the Yuhuangmiao culture who fought with the state of Yan. The Upper Xiajiadian culture flourished. Whether the Shanrong were actual allies of the Upper Xiajiadian culture or not, the defeat of Shanrong by Duke Huan of Qi led to the decline not only of the Shanrong tribe, but to the obstacle for the southern expansion of the Upper Xiajiadian culture because of the strengthening of the State of Yan, and later the Upper Xiajiadian culture declined as well, while the Weiyingzi culture declined even earlier, but was partially reborn as the Shiertaiyingzi culture, which is thought by Koreans to represent their first state of Go Joseon.
However, the Korean records mention the appearance of the “Gija Joseon” state (during the transition period from the Late Shang to Zhou Dynasty), headed by “Gija” who displaced the original Korean ruler. “Gija” is known by Chinese records as Jizi, the imprisoned relative of the last tyrant ruler of the Shang Dynasty, who was released by King Wu of Zhou and was dispatched by him to Joseon (Chaoxian). It is possible that the appearance of the Late Shang Dynasty cultural factors on the territory of the richest Baifu site, also on the territory of the Weiyingzi culture, also on the earliest territory from which the Upper Xiajiadian culture originated, is a prototype for historical records of Jizi’s expansion to “Go Joseon”. The political system which later emerged out of this, became a rival for the very Yan State of Zhou.
So from what kind of ancestry could the WLR_BA specimen trace its ultimate origin? This should be a type of ancestry which separated from the Shandong branch after KolymaM, but prior to the split between Boshan and Xiaogao. It probably occupied the geographically intermediate position between the area of the most ancient type of East Asian ancestry which preserved in Yumin of Inner Mogolia and the area of the most ancient type of East Asian ancestry which came along with the AR19K to the Songnen Plain (the Heilongjiang/Amur river basin). An intermediate geographic position would allow this type of ancestry to mix with various mtDNA D4h* populations whose ancestors had before incorporated the autosomal component of mtDNA M8’CZ bearers’ populations whose samples have connections to Ust-Ishim.
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