吉林大学发表最新Science论文

Core Insights - The article discusses the complex evolutionary history of cattle in East Asia, highlighting multiple diffusion events and extensive genetic mixing [2][8] - A recent study published in the journal Science provides a comprehensive genetic map of the origins and migration of East Asian cattle, offering new perspectives on prehistoric human migrations and ancient civilization exchanges [3][5] Group 1: Research Findings - The research team analyzed 166 ancient cattle samples from various archaeological sites, spanning from 10,000 years ago to 200 years ago, resulting in the largest and most complete dataset of ancient East Asian cattle genomes to date [5] - The study indicates that the primary source of East Asian cattle during the Holocene was a lineage from Northern Asian wild cattle, mixed with approximately 15% Western wild cattle ancestry [6] - The genetic composition of cattle from the Yellow River basin during the late Neolithic to Bronze Age formed a homogenous group, originating from Western Eurasian cattle with about 10% local wild cattle gene input, followed by a significant population bottleneck [6] Group 2: Genetic Mixing Events - The research reveals four significant fusion events in the genetic history of East Asian cattle, challenging the traditional view of a single origin and highlighting a gradual process of multiple external inputs and deep local population integration [8] - The findings suggest that the Eurasian steppe and Central Asia were key corridors for the early diffusion of cattle into East Asia, emphasizing these regions as important priorities for future ancient genomics research [9]