Results 41 to 50 of about 495,194 (321)
Syntactic Phylogenetic Trees [PDF]
21 pages, LaTeX, jpg ...
Shu, Kevin +4 more
openaire +4 more sources
A New Phylogenetic Inference Based on Genetic Attribute Reduction for Morphological Data
To address the instability of phylogenetic trees in morphological datasets caused by missing values, we present a phylogenetic inference method based on a concept decision tree (CDT) in conjunction with attribute reduction.
Jun Feng +5 more
doaj +1 more source
This study aimed to identify the phylogenetic similarities among the muntjac (Muntiacus spp.). The phylogenetic similarities among seven major muntjac species were studied by comparing the nucleotide sequence of 16s rRNA and cytochrome b genome ...
B. M. Khan +7 more
doaj +1 more source
On the Matrix Condition of Phylogenetic Tree. [PDF]
Phylogenetic comparative analyses use trees of evolutionary relationships between species to understand their evolution and ecology. A phylogenetic tree of n taxa can be algebraically transformed into an n by n squared symmetric phylogenetic covariance matrix C where each element [Formula: see text] in C represents the affinity between extant species ...
Jhwueng DC, O'Meara BC.
europepmc +6 more sources
Phylogenetic impoverishment of Amazonian tree communities in an experimentally fragmented forest landscape. [PDF]
Amazonian rainforests sustain some of the richest tree communities on Earth, but their ecological and evolutionary responses to human threats remain poorly known.
Bráulio A Santos +6 more
doaj +1 more source
Classes of tree-based networks
Recently, so-called tree-based phylogenetic networks have attracted considerable attention. These networks can be constructed from a phylogenetic tree, called the base tree, by adding additional edges.
Mareike Fischer +4 more
doaj +1 more source
Six simple guidelines for introducing new genera of fungi [PDF]
We formulate five guidelines for introducing new genera, plus one recommendation how to publish the results of scientific research. We recommend that reviewers and editors adhere to these guidelines.
Ammirati, Joe +16 more
core +2 more sources
A Stochastic Model for Phylogenetic Trees [PDF]
We propose the following simple stochastic model for phylogenetic trees. New types are born and die according to a birth and death chain. At each birth we associate a fitness to the new type sampled from a fixed distribution. At each death the type with the smallest fitness is killed. We show that if the birth (i.e.
Rinaldo B. Schinazi, Thomas M. Liggett
openaire +3 more sources
Unique perfect phylogeny is NP-hard [PDF]
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
Investigating patterns of phylogenetic structure across different life stages of tree species in forests is crucial to understanding forest community assembly, and investigating forest gap influence on the phylogenetic structure of forest regeneration is
Yi Jin, Hong Qian, Mingjian Yu
doaj +1 more source

