Ancient DNA of northern China Hystricidae sub-fossils reveals the evolutionary history of old world porcupines in the Late Pleistocene.

"the four newly determined dna sequences were deposited in genbank (accession nos: mk419154-5; mk579190-1).; availability of data and materials the assembled porcupine cyt b and 12s rrna sequences have been deposited in the genbank database ( http://www ncbi nih gov/genbank ) under the accession numbers mk579190-1 mk419154-5 respectively. availability of data and materials the assembled porcupine cyt b and 12s rrna sequences have been deposited in the genbank database ( http://www ncbi nih gov/genbank ) under the accession numbers mk579190"

"Competing interests The authors declare that they have no competing interests."

"Funding This research was financially supported by the National Natural Science Foundation of China (No.41672017). The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript."