Results 21 to 30 of about 96,348 (290)

Sympatric divergence of the ergot fungus, Claviceps purpurea, populations infecting agricultural and nonagricultural grasses in North America

open access: yesEcology and Evolution, 2021
The ergot diseases of agricultural and nonagricultural grasses are caused by the infection of Claviceps spp. (Hypocreales, Ascomycota) on florets, producing dark spur‐like sclerotia on spikes that are toxic to humans and animals, leading to detrimental ...
Miao Liu   +5 more
doaj   +1 more source

Clustering systems of phylogenetic networks

open access: yesTheory in Biosciences, 2023
AbstractRooted acyclic graphs appear naturally when the phylogenetic relationship of a set X of taxa involves not only speciations but also recombination, horizontal transfer, or hybridization that cannot be captured by trees. A variety of classes of such networks have been discussed in the literature, including phylogenetic, level-1, tree-child, tree ...
Hellmuth, Marc   +2 more
openaire   +4 more sources

Different influences of phylogenetically conserved and independent floral traits on plant functional specialization and pollination network structure

open access: yesFrontiers in Plant Science, 2023
Plant specialization and pollination network structure play important roles in community assembly. Floral traits can mediate plant–pollinator interactions and thus have important impacts on nestedness and modularity of pollination network.
Ganju Xiang   +7 more
doaj   +1 more source

Phylogenetic Comparative Methods on Phylogenetic Networks with Reticulations [PDF]

open access: yesSystematic Biology, 2017
Abstract The goal of phylogenetic comparative methods (PCMs) is to study the distribution of quantitative traits among related species. The observed traits are often seen as the result of a Brownian Motion (BM) along the branches of a phylogenetic tree.
Bastide, Paul   +4 more
openaire   +3 more sources

Trinets encode orchard phylogenetic networks [PDF]

open access: yesJournal of Mathematical Biology, 2021
23 pages, 4 ...
Charles Semple, Gerry Toft
openaire   +4 more sources

Rearrangement operations on unrooted phylogenetic networks

open access: yesTheory and Applications of Graphs, 2019
Rearrangement operations transform a phylogenetic tree into another one and hence induce a metric on the space of phylogenetic trees. Popular operations for unrooted phylogenetic trees are NNI (nearest neighbour interchange), SPR (subtree prune and ...
Remie Janssen, Jonathan Klawitter
doaj   +1 more source

Perfect phylogenetic networks with recombination [PDF]

open access: yesProceedings of the 2001 ACM symposium on Applied computing, 2001
The perfect phylogeny problem is a classical problem in evolutionary tree construction. In this paper, we propose a new model called phylogenetic network with recombination that takes recombination events into account. We show that the problem of finding a perfect phylogenetic network with the minimum number of recombination events is NP-hard; we also ...
Wang, L., Zhang, K., Zhang, L.
openaire   +2 more sources

Tree-Based Unrooted Phylogenetic Networks [PDF]

open access: yesBulletin of Mathematical Biology, 2017
Abstract Phylogenetic networks are a generalization of phylogenetic trees that are used to represent non-tree-like evolutionary histories that arise in organisms such as plants and bacteria, or uncertainty in evolutionary histories. An unrooted phylogenetic network on a non-empty, finite set X of taxa, or network, is a connected, simple graph
Francis, Andrew   +2 more
openaire   +5 more sources

Nonbinary Tree-Based Phylogenetic Networks [PDF]

open access: yesIEEE/ACM Transactions on Computational Biology and Bioinformatics, 2018
Rooted phylogenetic networks are used to describe evolutionary histories that contain non-treelike evolutionary events such as hybridization and horizontal gene transfer. In some cases, such histories can be described by a phylogenetic base-tree with additional linking arcs, which can for example represent gene transfer events.
Laura Jetten, Leo van Iersel
openaire   +5 more sources

Frin: An Efficient Method for Representing Genome Evolutionary History

open access: yesFrontiers in Genetics, 2019
Phylogenetic analysis is important in understanding the process of biological evolution, and phylogenetic trees are used to represent the evolutionary history.
Yan Hong, Juan Wang
doaj   +1 more source

Home - About - Disclaimer - Privacy