Artículos de revistas
Sorting By Weighted Inversions Considering Length And Symmetry
Registro en:
Sorting By Weighted Inversions Considering Length And Symmetry. Biomed Central Ltd, v. 16, p. DEC-2015.
1471-2105
WOS:000367881400003
10.1186/1471-2105-16-S19-S3
Autor
Baudet
Christian; Dias
Ulisses; Dias
Zanoni
Institución
Resumen
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Large-scale mutational events that occur when stretches of DNA sequence move throughout genomes are called genome rearrangements. In bacteria, inversions are one of the most frequently observed rearrangements. In some bacterial families, inversions are biased in favor of symmetry as shown by recent research. In addition, several results suggest that short segment inversions are more frequent in the evolution of microbial genomes. Despite the fact that symmetry and length of the reversed segments seem very important, they have not been considered together in any problem in the genome rearrangement field. Here, we define the problem of sorting genomes (or permutations) using inversions whose costs are assigned based on their lengths and asymmetries. We consider two formulations of the same problem depending on whether we know the orientation of the genes. Several procedures are presented and we assess these procedure performances on a large set of more than 4.4 x 10(9) permutations. The ideas presented in this paper provide insights to solve the problem and set the stage for a proper theoretical analysis. 16
19
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) French Project ANR MIRI [BLAN08-1335497] ERC Computational Engineering and Sciences at Unicamp [2013/08293-7] Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) FAPESP [2012/01584-3, 2014/19401-8] CNPq [477692/ 2012-5, 483370/2013-4]