Results 21 to 30 of about 12,359 (228)

msBayes: Pipeline for testing comparative phylogeographic histories using hierarchical approximate Bayesian computation

open access: yesBMC Bioinformatics, 2007
Background Although testing for simultaneous divergence (vicariance) across different population-pairs that span the same barrier to gene flow is of central importance to evolutionary biology, researchers often equate the gene tree and population/species
Takebayashi Naoki   +2 more
doaj   +1 more source

A polynomial time algorithm for calculating the probability of a ranked gene tree given a species tree [PDF]

open access: yes, 2012
In this paper, we provide a polynomial time algorithm to calculate the probability of a {\it ranked} gene tree topology for a given species tree, where a ranked tree topology is a tree topology with the internal vertices being ordered. The probability of
Degnan, James H., Stadler, Tanja
core   +2 more sources

Geographic variation in the calling songs and genetics of Bartram’s round-winged katydid Amblycorypha bartrami (Tettigoniidae, Phaneropterinae) reveal new species [PDF]

open access: yesJournal of Orthoptera Research, 2023
Previous work on Bartram’s round-winged katydid, Amblycorypha bartrami Walker, found inconsistencies in song variation across the species’ range. Individuals of purported populations of A. bartrami from sandhills across the southeastern US were collected,
Timothy G. Forrest   +4 more
doaj   +3 more sources

Phylogenetic and morphological analysis of Gloydius himalayanus (Serpentes, Viperidae, Crotalinae), with the description of a new species

open access: yesEuropean Journal of Taxonomy, 2022
Gloydius is a widespread pitviper group occurring from Eastern Europe to Korea and Siberia, with only one known species, G. himalayanus (Günther, 1864), found south of the Himalayas. We provide combined genetic and morphological data for G.
Sourish Kuttalam   +10 more
doaj   +1 more source

Maximize Resolution or Minimize Error? Using Genotyping-By-Sequencing to Investigate the Recent Diversification of Helianthemum (Cistaceae) [PDF]

open access: yes, 2019
A robust phylogenetic framework, in terms of extensive geographical and taxonomic sampling, well-resolved species relationships and high certainty of tree topologies and branch length estimations, is critical in the study of macroevolutionary patterns ...
Aparicio Martínez, Abelardo   +7 more
core   +1 more source

New metrics for comparison of taxonomies reveal striking discrepancies among species delimitation methods in Madascincus lizards. [PDF]

open access: yesPLoS ONE, 2013
Delimiting and describing species is fundamental to numerous biological disciplines such as evolution, macroecology, and conservation. Delimiting species as independent evolutionary lineages may and often does yield different outcomes depending on the ...
Aurélien Miralles, Miguel Vences
doaj   +1 more source

Stochastic Safety Radius on UPGMA

open access: yesAlgorithms, 2022
Unweighted Pair Group Method with Arithmetic Mean (UPGMA) is one of the most popular distance-based methods to reconstruct an equidistant phylogenetic tree from a distance matrix computed from an alignment of sequences.
Ruriko Yoshida   +2 more
doaj   +1 more source

Effects of phylogenetic reconstruction method on the robustness of species delimitation using single-locus data [PDF]

open access: yes, 2014
1. Coalescent-based species delimitation methods combine population genetic and phylogenetic theory to provide an objective means for delineating evolutionarily significant units of diversity.
Barraclough, Timothy G   +4 more
core   +2 more sources

Analysis of DNA sequence variation within marine species using Beta-coalescents [PDF]

open access: yes, 2011
We apply recently developed inference methods based on general coalescent processes to DNA sequence data obtained from various marine species. Several of these species are believed to exhibit so-called shallow gene genealogies, potentially due to extreme
Birkner, Matthias   +2 more
core   +3 more sources

The performance of coalescent-based species tree estimation methods under models of missing data

open access: yesBMC Genomics, 2018
Background Estimation of species trees from multiple genes is complicated by processes such as incomplete lineage sorting, gene duplication and loss, and horizontal gene transfer, that result in gene trees that differ from each other and from the species
Michael Nute   +3 more
doaj   +1 more source

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