Results 41 to 50 of about 2,113,711 (315)

Ghost-tree: creating hybrid-gene phylogenetic trees for diversity analyses. [PDF]

open access: yes, 2016
BackgroundFungi play critical roles in many ecosystems, cause serious diseases in plants and animals, and pose significant threats to human health and structural integrity problems in built environments.
Bolyen, Evan   +8 more
core   +2 more sources

PopPhy-CNN: A Phylogenetic Tree Embedded Architecture for Convolutional Neural Networks to Predict Host Phenotype From Metagenomic Data

open access: yesIEEE journal of biomedical and health informatics, 2020
Accurate prediction of the host phenotype from a metagenomic sample and identification of the associated microbial markers are important in understanding potential host-microbiome interactions related to disease initiation and progression.
Derek Reiman   +3 more
semanticscholar   +1 more source

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

Unique perfect phylogeny is NP-hard [PDF]

open access: yes, 2010
We answer, in the affirmative, the following question proposed by Mike Steel as a $100 challenge: "Is the following problem NP-hard? Given a ternary phylogenetic X-tree T and a collection Q of quartet subtrees on X, is T the only tree that displays Q ?
Habib, Michel, Stacho, Juraj
core   +1 more source

A new resolution function to evaluate tree shape statistics.

open access: yesPLoS ONE, 2019
Phylogenetic trees are frequently used in biology to study the relationships between a number of species or organisms. The shape of a phylogenetic tree contains useful information about patterns of speciation and extinction, so powerful tools are needed ...
Maryam Hayati   +2 more
doaj   +1 more source

Understanding the tree of life: an overview of tree-reading skill frameworks

open access: yesEvolution: Education and Outreach, 2019
Diagrammatic depictions of evolutionary relationships play an increasingly important role in scientific and educational literature. Reading evolutionary trees is seen as a major challenge for biologists in learning about evolution and its applications in
Thilo Schramm   +2 more
doaj   +1 more source

A new classification of Carex (Cyperaceae) subgenera supported by a HybSeq backbone phylogenetic tree

open access: yesBotanical journal of the Linnean Society, 2020
The field of systematics is experiencing a new molecular revolution driven by the increased availability of high-throughput sequencing technologies.
Tamara Villaverde   +22 more
semanticscholar   +1 more source

Conflicting phylogenetic signals in plastomes of the tribe Laureae (Lauraceae) [PDF]

open access: yesPeerJ, 2020
Background Gene tree discordance is common in phylogenetic analyses. Many phylogenetic studies have excluded non-coding regions of the plastome without evaluating their impact on tree topology. In general, plastid loci have often been treated as a single
Tian-Wen Xiao   +5 more
doaj   +2 more sources

The Fair Proportion is a Shapley Value on phylogenetic networks too

open access: yes, 2018
The Fair Proportion of a species in a phylogenetic tree is a very simple measure that has been used to assess its value relative to the overall phylogenetic diversity represented by the tree.
Coronado, Tomás M.   +2 more
core   +1 more source

RAxML-NG: a fast, scalable and user-friendly tool for maximum likelihood phylogenetic inference

open access: yesbioRxiv, 2018
Motivation Phylogenies are important for fundamental biological research, but also have numerous applications in biotechnology, agriculture, and medicine.
Alexey M. Kozlov   +4 more
semanticscholar   +1 more source

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