Inka Child Mummy Found in Cerro Aconcagua (Argentina) Traced Back to Populations of the Northern Peruvian Coast through Y-Chromosome Analysis

DNA Pub Date : 2023-10-11 DOI:10.3390/dna3040012
José R. Sandoval, Ricardo Fujita, Marilza S. Jota, Thomaz Pinotti, Fabrício R. Santos
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Abstract

The mummy of a seven-year-old child that was discovered in 1985 in Cerro Aconcagua (Mendoza, Argentina) was likely part of an Inka sacrificial religious practice known as capacocha. Previous uniparental DNA marker studies conducted by some scholars have suggested that the mummified child may be related to the southern Andean population of Peru. However, autosome genome-wide analysis performed by others has indicated that the child was more closely related to the population along the northern Peruvian coast than to that of the southern Andes. In this study, we aimed to determine possible genealogical connections in the male lineage of the mummified child. To achieve this, we compared the genetic profile of the mummy with an extensive database of contemporary individuals from the northern Peruvian coastal and southern Andean regions. We used single nucleotide polymorphisms and short tandem repeats from the nonrecombining region of the Y-chromosome for our analysis. Our results confirmed that the Inka child mummy was closely related to individuals from the north coast of Peru. This suggests that the child was likely descended from the Muchik–Chimor-speaking people.
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在阿根廷阿空加瓜发现的印卡儿童木乃伊通过y染色体分析可追溯到秘鲁北部海岸的人群
1985年在阿根廷门多萨的塞罗阿空加瓜(Cerro Aconcagua)发现了一具7岁儿童的木乃伊,这具木乃伊很可能是印卡人祭祀宗教活动“capacocha”的一部分。一些学者先前进行的单亲DNA标记研究表明,这个木乃伊化的孩子可能与秘鲁安第斯山脉南部的人口有关。然而,其他人进行的常染色体全基因组分析表明,这个孩子与秘鲁北部海岸的人口关系更密切,而不是安第斯山脉南部的人口。在这项研究中,我们的目的是确定可能的系谱连接在男性血统的木乃伊儿童。为了实现这一目标,我们将木乃伊的基因图谱与来自秘鲁北部沿海和安第斯南部地区的当代个体的广泛数据库进行了比较。我们使用来自y染色体非重组区域的单核苷酸多态性和短串联重复序列进行分析。我们的研究结果证实,印卡儿童木乃伊与秘鲁北部海岸的个体有密切关系。这表明这个孩子很可能是说墨奇莫语的人的后裔。
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DNA
DNA
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