Results 31 to 40 of about 78,490 (142)

A Fast and Scalable Method for Inferring Phylogenetic Networks from Trees by Aligning Lineage Taxon Strings [PDF]

open access: yesarXiv, 2023
The reconstruction of phylogenetic networks is an important but challenging problem in phylogenetics and genome evolution, as the space of phylogenetic networks is vast and cannot be sampled well. One approach to the problem is to solve the minimum phylogenetic network problem, in which phylogenetic trees are first inferred, then the smallest ...
arxiv  

Biodiversity arks in the Anthropocene

open access: yesRegional Sustainability, 2021
The Anthropocene proposal suggested that the Earth may have entered a new geological epoch, in which human activity and climate change are influencing the environment at global scale.
Honghu Meng   +4 more
doaj  

DNA barcodes reveal population-dependent cryptic diversity and various cases of sympatry of Korean leptonetid spiders (Araneae: Leptonetidae)

open access: yesScientific Reports, 2022
Leptonetidae are tiny, rarely encountered spiders that mainly inhabit moist environments, such as caves, leaf litter, and rock piles. Because they are microhabitat specialists, most leptonetid species have short-range endemism, and rarely occur in ...
Jong-Hwa Oh, Sora Kim, Seunghwan Lee
doaj   +1 more source

Rank conditions on phylogenetic networks [PDF]

open access: yesarXiv, 2020
Less rigid than phylogenetic trees, phylogenetic networks allow the description of a wider range of evolutionary events. In this note, we explain how to extend the rank invariants from phylogenetic trees to phylogenetic networks evolving under the general Markov model and the equivariant models.
arxiv  

Quartets enable statistically consistent estimation of cell lineage trees under an unbiased error and missingness model

open access: yesAlgorithms for Molecular Biology, 2023
Cancer progression and treatment can be informed by reconstructing its evolutionary history from tumor cells. Although many methods exist to estimate evolutionary trees (called phylogenies) from molecular sequences, traditional approaches assume the ...
Yunheng Han, Erin K. Molloy
doaj   +1 more source

Classes of Explicit Phylogenetic Networks and their Biological and Mathematical Significance [PDF]

open access: yesarXiv, 2021
The evolutionary relationships among organisms have traditionally been represented using rooted phylogenetic trees. However, due to reticulate processes such as hybridization or lateral gene transfer, evolution cannot always be adequately represented by a phylogenetic tree, and rooted phylogenetic networks that describe such complex processes have been
arxiv  

Survey of molecular phylogenetics

open access: yesPlant, Soil and Environment, 2007
Rapidly increasing amount of biological data necessarily requires techniques that would enable to extract the information hidden in the data. Methods of molecular phylogenetics are commonly used tools as well as objects of continuous research within many
M. Talianová
doaj   +1 more source

Modeling the Ecology and Evolution of Biodiversity: Introduction to the Special Issue

open access: yesDiversity, 2022
Applying relevant statistical models to empirical data analysis has been considered a very important procedure for scientists to answer research questions in the fields of biodiversity, phylogeography, evolutionary biology, paleoecology, phylogenetics ...
Dwueng-Chwuan Jhwueng
doaj   +1 more source

Locating a Tree in a Phylogenetic Network in Quadratic Time [PDF]

open access: yes, 2015
A fundamental problem in the study of phylogenetic networks is to determine whether or not a given phylogenetic network contains a given phylogenetic tree. We develop a quadratic-time algorithm for this problem for binary nearly-stable phylogenetic networks.
arxiv   +1 more source

Exploring spaces of semi-directed phylogenetic networks [PDF]

open access: yesarXiv, 2023
Semi-directed phylogenetic networks have recently emerged as a class of phylogenetic networks sitting between rooted (directed) and unrooted (undirected) phylogenetic networks as they contain both directed as well as undirected edges. While the spaces of rooted phylogenetic networks and unrooted phylogenetic networks have been analyzed in recent years ...
arxiv  

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