Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Wieseke, Nicolas"'
Autor:
Schaller, David, Hartmann, Tom, Lafond, Manuel, Wieseke, Nicolas, Stadler, Peter F., Hellmuth, Marc
Evolutionary scenarios describing the evolution of a family of genes within a collection of species comprise the mapping of the vertices of a gene tree $T$ to vertices and edges of a species tree $S$. The relative timing of the last common ancestors
Externí odkaz:
http://arxiv.org/abs/2212.02201
Several implicit methods to infer Horizontal Gene Transfer (HGT) focus on pairs of genes that have diverged only after the divergence of the two species in which the genes reside. This situation defines the edge set of a graph, the later-divergence-t
Externí odkaz:
http://arxiv.org/abs/2012.08897
Autor:
Hartmann, Tom, Bannach, Max, Middendorf, Martin, Stadler, Peter F., Wieseke, Nicolas, Hellmuth, Marc
We introduce the concept of complete edge-colored permutation graphs as complete graphs that are the edge-disjoint union of "classical" permutation graphs. We show that a graph $G=(V,E)$ is a complete edge-colored permutation graph if and only if eac
Externí odkaz:
http://arxiv.org/abs/2004.07118
Autor:
Wieseke, Nicolas
Orthology and paralogy distinguish whether a pair of genes originated by a speciation or a gene duplication event, whereas xenology refers to horizontal gene transfer. These concepts play a key role in phylogenomics and species tree inference is one
Externí odkaz:
https://ul.qucosa.de/id/qucosa%3A16360
https://ul.qucosa.de/api/qucosa%3A16360/attachment/ATT-0/
https://ul.qucosa.de/api/qucosa%3A16360/attachment/ATT-0/
Autor:
Hartmann, Tom, Bannach, Max, Middendorf, Martin, Stadler, Peter F., Wieseke, Nicolas, Hellmuth, Marc
Publikováno v:
In Advances in Applied Mathematics August 2022 139
Autor:
Hellmuth, Marc, Wieseke, Nicolas, Lechner, Marcus, Lenhof, Hans-Peter, Middendorf, Martin, Stadler, Peter F.
Publikováno v:
PNAS 2015 112 (7) 2058-2063
Phylogenomics heavily relies on well-curated sequence data sets that consist, for each gene, exclusively of 1:1-orthologous. Paralogs are treated as a dangerous nuisance that has to be detected and removed. We show here that this severe restriction o
Externí odkaz:
http://arxiv.org/abs/1712.06442
Two genes are xenologs in the sense of Fitch if they are separated by at least one horizontal gene transfer event. Horizonal gene transfer is asymmetric in the sense that the transferred copy is distinguished from the one that remains within the ance
Externí odkaz:
http://arxiv.org/abs/1711.02152
Autor:
Hernandez-Rosales, Maribel, Hellmuth, Marc, Wieseke, Nicolas, Huber, Katharina T., Moulton, Vincent, Stadler, Peter F.
Background: Tree reconciliation problems have long been studied in phylogenetics. A particular variant of the reconciliation problem for a gene tree T and a species tree S assumes that for each interior vertex x of T it is known whether x represents
Externí odkaz:
http://arxiv.org/abs/1705.04190
Autor:
Nøjgaard, Nikolai, Geiß, Manuela, Stadler, Peter F., Merkle, Daniel, Wieseke, Nicolas, Hellmuth, Marc
In the absence of horizontal gene transfer it is possible to reconstruct the history of gene families from empirically determined orthology relations, which are equivalent to event-labeled gene trees. Knowledge of the event labels considerably simpli
Externí odkaz:
http://arxiv.org/abs/1705.02179
The modular decomposition of a graph $G=(V,E)$ does not contain prime modules if and only if $G$ is a cograph, that is, if no quadruple of vertices induces a simple connected path $P_4$. The cograph editing problem consists in inserting into and dele
Externí odkaz:
http://arxiv.org/abs/1702.07499