Results 11 to 20 of about 1,387,634 (300)

Coalescent histories for lodgepole species trees [PDF]

open access: yesJournal of Computational Biology, 2015
Coalescent histories are combinatorial structures that describe for a given gene tree and species tree the possible lists of branches of the species tree on which the gene tree coalescences take place. Properties of the number of coalescent histories for
Disanto, Filippo, Rosenberg, Noah A.
core   +3 more sources

Terraces in species tree inference from gene trees. [PDF]

open access: yesBMC Ecol Evol, 2022
Abstract A terrace in a phylogenetic tree space is a region where all trees contain the same set of subtrees, due to certain patterns of missing data among the taxa sampled, resulting in an identical optimality score for a given data set. This was first investigated in the context of phylogenetic tree estimation from sequence alignments using ...
Habib M   +4 more
europepmc   +4 more sources

Species integrity in trees [PDF]

open access: yesMolecular Ecology, 2014
From California sequoia, to Australian eucalyptus, to the outstanding diversity of Amazonian forests, trees are fundamental to many processes in ecology and evolution. Trees define the communities that they inhabit, are host to a multiplicity of other organisms and can determine the ecological dynamics of other plants and animals. Trees are also at the
Ortiz-Barrientos, Daniel, Baack, Eric J.
openaire   +3 more sources

Estimating Species Trees from Unrooted Gene Trees [PDF]

open access: yesSystematic Biology, 2011
In this study, we develop a distance method for inferring unrooted species trees from a collection of unrooted gene trees. The species tree is estimated by the neighbor joining (NJ) tree built from a distance matrix in which the distance between two species is defined as the average number of internodes between two species across gene trees, that is ...
Liu, Liang, Yu, Lili
openaire   +3 more sources

Gene trees and species trees: irreconcilable differences [PDF]

open access: yesBMC Bioinformatics, 2012
Reconciliation is the classical method for inferring a duplication and loss history from a set of extant genes. It is based upon the notion of embedding the gene tree into the species tree, the incongruence between the two indicating evidence for duplication and loss.
Swenson Krister M, El-Mabrouk Nadia
openaire   +3 more sources

The Inference of Gene Trees with Species Trees [PDF]

open access: yesSystematic Biology, 2014
Review article in relation to the "Mathematical and Computational Evolutionary Biology" conference, Montpellier ...
Szöllősi, Gergely   +3 more
openaire   +5 more sources

Gene Trees in Species Trees [PDF]

open access: yesSystematic Biology, 1997
Exploration of the relationship between gene trees and their containing species trees leads to consideration of how to reconstruct species trees from gene trees and of the concept of phylogeny as a cloud of gene histories. When gene copies are sampled from various species, the gene tree relating these copies might disagree with the species phylogeny ...
openaire   +1 more source

Results of Czech ash provenance experiment

open access: yesJournal of Forest Science, 2017
This study is focused on testing progenies of common and narrow-leaved ash based on the measurement of provenance trial plots established in various forest regions under different site conditions within the Czech Republic in the spring of 1999.
Václav BURIÁNEK   +2 more
doaj   +1 more source

Phenotypic and molecular marker analysis uncovers the genetic diversity of the grass Stenotaphrum secundatum

open access: yesBMC Genetics, 2020
Background Stenotaphrum secundatum is an important grass with a rich variety of accessions and great potential for development as an economically valuable crop. However, little is known about the genetic diversity of S.
Ying Luo   +9 more
doaj   +1 more source

The evolution of tree nursery offerings in Los Angeles County over the last 110 years [PDF]

open access: yes, 2013
Interest in urban vegetation has increased dramatically. Urban trees are an important aspect of the urban environment but there is little known about the potential sources of those trees, change in tree species diversity over time and the factors leading
Gillespie, TW   +4 more
core   +1 more source

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