Supporting data for: Late Quaternary dynamics of Arctic biota revealed by ancient environmental metagenomics
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'[Article abstract Wang et al. submitted] During the last glacial-interglacial cycle, arctic biota experienced drastic climatic changes, yet the nature, extent and rate of their responses are not fully understood. Here we report the first large-scale environmental DNA metagenomic study of ancient plant and mammal communities using 535 permafrost and lake sediment samples from across the Arctic spanning the last 50,000 years. Additionally, we present 1,541 contemporary plant genome assemblies generated as reference sequences. Our study provides several novel insights into the long-term dynamics of the arctic biota at circumpolar and regional scales. Key findings include: (i) a relatively homogeneous steppe-tundra flora dominated the Arctic during the Last Glacial Maximum, followed by regional divergence of vegetation in th' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["chloroplast DNA","environmental DNA","genome contigs","nuclear ribosomal DNA","phylogenomic","plant DNA","polar"]} <|eot_id|>
 Here is the Description of a dataset. Description:'[Article abstract Wang et al. submitted] During the last glacial-interglacial cycle, arctic biota experienced drastic climatic changes, yet the nature, extent and rate of their responses are not fully understood. Here we report the first large-scale environmental DNA metagenomic study of ancient plant and mammal communities using 535 permafrost and lake sediment samples from across the Arctic spanning the last 50,000 years. Additionally, we present 1,541 contemporary plant genome assemblies generated as reference sequences. Our study provides several novel insights into the long-term dynamics of the arctic biota at circumpolar and regional scales. Key findings include: (i) a relatively homogeneous steppe-tundra flora dominated the Arctic during the Last Glacial Maximum, followed by regional divergence of vegetation in th' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
[Article abstract Wang et al. submitted] During the last glacial-interglacial cycle, arctic biota experienced drastic climatic changes, yet the nature, extent and rate of their responses are not fully understood. Here we report the first large-scale environmental DNA metagenomic study of ancient plant and mammal communities using 535 permafrost and lake sediment samples from across the Arctic spanning the last 50,000 years. Additionally, we present 1,541 contemporary plant genome assemblies generated as reference sequences. Our study provides several novel insights into the long-term dynamics of the arctic biota at circumpolar and regional scales. Key findings include: (i) a relatively homogeneous steppe-tundra flora dominated the Arctic during the Last Glacial Maximum, followed by regional divergence of vegetation in th
chloroplast DNA; environmental DNA; genome contigs; nuclear ribosomal DNA; phylogenomic; plant DNA; polar