期刊
BIOINFORMATICS
卷 36, 期 15, 页码 4269-4275出版社
OXFORD UNIV PRESS
DOI: 10.1093/bioinformatics/btaa519
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资金
- USDA Hatch program and translational plant sciences program at Virginia Tech
Motivation: Transposable elements (TEs) classification is an essential step to decode their roles in genome evolution. With a large number of genomes from non-model species becoming available, accurate and efficient TE classification has emerged as a new challenge in genomic sequence analysis. Results: We developed a novel tool, DeepTE, which classifies unknown TEs using convolutional neural networks (CN Ns). DeepTE transferred sequences into input vectors based on k-mer counts. A tree structured classification process was used where eight models were trained to classify TEs into super families and orders. DeepTE also detected domains inside TEs to correct false classification. An additional model was trained to distinguish between non-TEs and TEs in plants. Given unclassified TEs of different species, DeepTE can classify TEs into seven orders, which include 15, 24 and 16 super families in plants, metazoans and fungi, respectively. In several benchmarking tests, DeepTE outperformed other existing tools for TE classification. In conclusion, DeepTE successfully leverages CNN for TE classification, and can be used to precisely classify TEs in newly sequenced eukaryotic genomes.
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