Genetic Analysis of Prehistoric Canis Remains from Across the North American Arctic: Implications for Interactions Among their Human Companions

鉴于狗对北方文化的重要性及其与人类的相互交织的关系，本研究项目旨在解决与狗从亚洲到阿拉斯加和加拿大/格陵兰岛的时间和传播以及当地品种的发展有关的问题。利用现代遗传学方法从年代久远的考古学背景中提取牙齿和骨骼遗骸的DNA，结合放射性碳年代测定和对近期样本的分析，PI建议（1）对北美北极地区的狗遗骸进行详细的时空分析，（2）分析史前接触时期的遗传历史，利用线粒体DNA（mtDNA）和Y染色体研究现代北极狗的基因组，（3）有助于人类学和考古学关于北方土著人民的运动和文化互动的讨论。

Given the importance of dogs to northern culture and their intertwined relationship to humans, this research project is designed to address questions related to the timing and spread of dogs from Asia to Alaska and Canada/Greenland and the development of local breeds. Using modern genetic methods to extract DNA from tooth and bone remains from well dated archaeological contexts in combination with radiocarbon-dating and analysis of recent samples, the PIs propose to (1) Provide a detailed temporal-spatial analysis of dog remains across the North American Arctic, (2) analyze the genetic history of prehistoric, contact period, and modern Arctic dogs using mitochondrial DNA (mtDNA) and the Y chromosome, and (3) contribute to anthropological and archaeological discussions concerning the movements and cultural interactions of indigenous peoples across the north.