Skmer: assembly-free and alignment-free sample identification using genome skims

S Sarmashghi, K Bohmann, MT P. Gilbert, V Bafna… - Genome biology, 2019 - Springer
The ability to inexpensively describe taxonomic diversity is critical in this era of rapid climate
and biodiversity changes. The recent genome-skimming approach extends current …

The number of k-mer matches between two DNA sequences as a function of k and applications to estimate phylogenetic distances

S Röhling, A Linne, J Schellhorn, M Hosseini… - Plos one, 2020 - journals.plos.org
We study the number N k of length-k word matches between pairs of evolutionarily related
DNA sequences, as a function of k. We show that the Jukes-Cantor distance between two …

Prot-SpaM: fast alignment-free phylogeny reconstruction based on whole-proteome sequences

CA Leimeister, J Schellhorn, S Dörrer, M Gerth… - …, 2019 - academic.oup.com
Word-based or 'alignment-free'sequence comparison has become an active research area
in bioinformatics. While previous word-frequency approaches calculated rough measures of …

Mapping sequence to feature vector using numerical representation of codons targeted to amino acids for alignment-free sequence analysis

JK Das, A Sengupta, PP Choudhury, S Roy - Gene, 2021 - Elsevier
The phylogenetic analysis based on sequence similarity targeted to real biological taxa is
one of the major challenging tasks. In this paper, we propose a novel alignment-free …

Read-SpaM: assembly-free and alignment-free comparison of bacterial genomes with low sequencing coverage

AK Lau, S Dörrer, CA Leimeister, C Bleidorn… - BMC …, 2019 - Springer
Background In many fields of biomedical research, it is important to estimate phylogenetic
distances between taxa based on low-coverage sequencing reads. Major applications are …

'Multi-SpaM': a maximum-likelihood approach to phylogeny reconstruction using multiple spaced-word matches and quartet trees

T Dencker, CA Leimeister, M Gerth… - NAR Genomics and …, 2020 - academic.oup.com
Word-based or 'alignment-free'methods for phylogeny inference have become popular in
recent years. These methods are much faster than traditional, alignment-based approaches …

Accurate multiple alignment of distantly related genome sequences using filtered spaced word matches as anchor points

CA Leimeister, T Dencker, B Morgenstern - Bioinformatics, 2019 - academic.oup.com
Motivation Most methods for pairwise and multiple genome alignment use fast local
homology search tools to identify anchor points, ie high-scoring local alignments of the input …

Sequence Comparison Without Alignment: The SpaM Approaches

B Morgenstern - Multiple Sequence Alignment: Methods and Protocols, 2021 - Springer
Sequence alignment is at the heart of DNA and protein sequence analysis. For the data
volumes that are nowadays produced by massively parallel sequencing technologies …

CD-MAWS: An alignment-free phylogeny estimation method using cosine distance on minimal absent word sets

N Anjum, RL Nabil, RI Rafi, MS Bayzid… - … /ACM Transactions on …, 2021 - ieeexplore.ieee.org
Multiple sequence alignment has been the traditional and well established approach of
sequence analysis and comparison, though it is time and memory consuming. As the scale …

Phylogenetics beyond biology

N Retzlaff, PF Stadler - Theory in Biosciences, 2018 - Springer
Evolutionary processes have been described not only in biology but also for a wide range of
human cultural activities including languages and law. In contrast to the evolution of DNA or …