期刊
NATIONAL SCIENCE REVIEW
卷 8, 期 5, 页码 -出版社
OXFORD UNIV PRESS
DOI: 10.1093/nsr/nwab028
关键词
DNA storage; synthetic biology; indel correction; encoded DNA; artificial chromosome
资金
- National Natural Science Foundation of China [21621004]
The study on DNA digital storage introduces an alternative method for high-density and long-term stable information storage by designing and synthesizing an artificial chromosome that encodes images and videos. With a coding paradigm that tolerates errors and a stability demonstration through generational transmission, this approach provides potential for massive data distribution in an economically efficient manner.
DNA digital storage provides an alternative for information storage with high density and long-term stability. Here, we report the de novo design and synthesis of an artificial chromosome that encodes two pictures and a video clip. The encoding paradigm utilizing the superposition of sparsified error correction codewords and pseudo-random sequences tolerates base insertions/deletions and is well suited to error-prone nanopore sequencing for data retrieval. The entire 254 kb sequence was 95.27% occupied by encoded data. The Transformation-Associated Recombination method was used in the construction of this chromosome from DNA fragments and necessary autonomous replication sequences. The stability was demonstrated by transmitting the data-carrying chromosome to the 100th generation. This study demonstrates a data storage method using encoded artificial chromosomes via in vivo assembly for write-once and stable replication for multiple retrievals, similar to a compact disc, with potential in economically massive data distribution.
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