Publication detail

Set of rules for genomic signal downsampling

SEDLÁŘ, K. ŠKUTKOVÁ, H. VÍTEK, M. PROVAZNÍK, I.

Original Title

Set of rules for genomic signal downsampling

Type

journal article in Web of Science

Language

English

Original Abstract

Comparison and classification of organisms based on molecular data is an important task of computational biology, since at least parts of DNA sequences for many organisms are available. Unfortunately, methods for comparison are computationally very demanding, suitable only for short sequences. In this paper, we focus on the redundancy of genetic information stored in DNA sequences. We proposed rules for downsampling of DNA signals of cumulated phase. According to the length of an original sequence, we are able to significantly reduce the amount of data with only slight loss of original information. Dyadic wavelet transform was chosen for fast downsampling with minimum influence on signal shape carrying the biological information. We proved the usability of such new short signals by measuring percentage deviation of pairs of original and downsampled signals while maintaining spectral power of signals. Minimal loss of biological information was proved by measuring the Robinson-Foulds distance between pairs of phylogenetic trees reconstructed from the original and downsampled signals. The preservation of inter-species and intra-species information makes these signals suitable for fast sequence identification as well as for more detailed phylogeny reconstruction.

Keywords

Genomic signal; Cumulated phase; Downsampling; Compression; DWT; Sequence identification; Phylogeny

Authors

SEDLÁŘ, K.; ŠKUTKOVÁ, H.; VÍTEK, M.; PROVAZNÍK, I.

RIV year

2015

Released

4. 6. 2015

Publisher

Elsevier

Location

USA

ISBN

0010-4825

Periodical

COMPUTERS IN BIOLOGY AND MEDICINE

Year of study

64

Number

p1

State

United States of America

Pages from

1

Pages to

7

Pages count

7

URL

http://www.sciencedirect.com/science/article/pii/S0010482515002048

Full text in the Digital Library

http://hdl.handle.net/11012/69200

BibTex

@article{BUT115093,
  author="Karel {Sedlář} and Helena {Vítková} and Martin {Vítek} and Valentine {Provazník}",
  title="Set of rules for genomic signal downsampling",
  journal="COMPUTERS IN BIOLOGY AND MEDICINE",
  year="2015",
  volume="64",
  number="p1",
  pages="1--7",
  doi="10.1016/j.compbiomed.2015.05.022",
  issn="0010-4825",
  url="http://www.sciencedirect.com/science/article/pii/S0010482515002048"
}