Results 21 to 30 of about 1,652,278 (203)
A metric on phylogenetic tree shapes [PDF]
Abstract The shapes of evolutionary trees are influenced by the nature of the evolutionary process, but comparisons of trees from different processes are hindered by the challenge of completely describing tree shape. We present a full characterization of the shapes of rooted branching trees in a form that lends itself to natural tree ...
Colijn, C, Plazzotta, G
openaire +3 more sources
Letter: TreeAdder: a tool to assist the optimal positioning of a new leaf into an existing phylogenetic tree [PDF]
TreeAdder is a computer application that adds a leaf in all possible positions on a phylogenetic tree. The resulting set of trees represent a dataset appropriate for maximum likelihood calculation of the optimal tree.
Gatherer, Derek
core +1 more source
Drawing Phylogenetic Trees [PDF]
We present linear-time algorithms for drawing phylogenetic trees in radial and circular representations. In radial drawings given edge lengths (representing evolutionary distances) are preserved, but labels (names of taxons represented in the leaves) need to be adjusted, whereas in circular drawings labels are perfectly spread out, but edge lengths ...
Christian Bachmaier +2 more
openaire +2 more sources
Characterization of a Branch of the Phylogenetic Tree [PDF]
We use a combination of analytic models and computer simulations to gain insight into the dynamics of evolution. Our results suggest that certain interesting phenomena should eventually emerge from the fossil record. For example, there should be a ``tortoise and hare effect'': Those genera with the smallest species death rate are likely to survive much
Samuel, Stuart A., Weng, Gezhi
openaire +3 more sources
Stochastic errors vs. modeling errors in distance based phylogenetic reconstructions [PDF]
Dörr D, Gronau I, Moran S, Yavneh I. Stochastic errors vs. modeling errors in distance based phylogenetic reconstructions. Algorithms for Molecular Biology.
Gronau, Ilan +11 more
core +1 more source
Operads and phylogenetic trees
We construct an operad $\mathrm{Phyl}$ whose operations are the edge-labelled trees used in phylogenetics. This operad is the coproduct of $\mathrm{Com}$, the operad for commutative semigroups, and $[0,\infty)$, the operad with unary operations corresponding to nonnegative real numbers, where composition is addition.
Baez, JC, Otter, N
openaire +4 more sources
Towards a Taxonomically Intelligent Phylogenetic Database [PDF]
This note outlines some of the key intellectual obstacles that stand in the way of creating a usable phylogenetic database. These challenges include the need to accommodate multiple taxonomic names and classifications, and the need for tools to query ...
Roderic Page
core +1 more source
Implicit inequality constraints in a binary tree model [PDF]
In this paper we investigate the geometry of a discrete Bayesian network whose graph is a tree all of whose variables are binary and the only observed variables are those labeling its leaves.
Zwiernik, Piotr +3 more
core +1 more source
A synthesis tree of the Copepoda: integrating phylogenetic and taxonomic data reveals multiple origins of parasitism [PDF]
The Copepoda is a clade of pancrustaceans containing 14,485 species that are extremely varied in their morphology and lifestyle. Not only do copepods dominate marine plankton and sediment communities and make up a sizeable component of the freshwater ...
James P. Bernot +2 more
doaj +2 more sources
On the number of vertices of each rank in phylogenetic trees and their generalizations [PDF]
We find surprisingly simple formulas for the limiting probability that the rank of a randomly selected vertex in a randomly selected phylogenetic tree or generalized phylogenetic tree is a given integer.
Miklós Bóna
doaj +1 more source

