Results 71 to 80 of about 4,914,786 (311)

Genome sequence of the olive tree, Olea europaea

open access: yesGigaScience, 2016
BackgroundThe Mediterranean olive tree (Olea europaea subsp. europaea) was one of the first trees to be domesticated and is currently of major agricultural importance in the Mediterranean region as the source of olive oil.
F. Cruz   +16 more
semanticscholar   +1 more source

Fragmentary Gene Sequences Negatively Impact Gene Tree and Species Tree Reconstruction [PDF]

open access: yesMolecular Biology and Evolution, 2017
Species tree reconstruction from genome-wide data is increasingly being attempted, in most cases using a two-step approach of first estimating individual gene trees and then summarizing them to obtain a species tree. The accuracy of this approach, which promises to account for gene tree discordance, depends on the quality of the inferred gene trees. At
Erfan, Sayyari   +2 more
openaire   +2 more sources

Meta‐analysis fails to show any correlation between protein abundance and ubiquitination changes

open access: yesFEBS Open Bio, EarlyView.
We analyzed over 50 published proteomics datasets to explore the relationship between protein levels and ubiquitination changes across multiple experimental conditions and biological systems. Although ubiquitination is often associated with protein degradation, our analysis shows that changes in ubiquitination do not globally correlate with changes in ...
Nerea Osinalde   +3 more
wiley   +1 more source

GATC: a genetic algorithm for gene tree construction under the Duplication-Transfer-Loss model of evolution

open access: yesBMC Genomics, 2018
Background Several methods have been developed for the accurate reconstruction of gene trees. Some of them use reconciliation with a species tree to correct, a posteriori, errors in gene trees inferred from multiple sequence alignments. Unfortunately the
Emmanuel Noutahi, Nadia El-Mabrouk
doaj   +1 more source

Evolutionarily divergent DUF4465 domains have a common vitamin B12‐binding function

open access: yesFEBS Open Bio, EarlyView.
We show that DUF4465 family proteins, widespread across bacteria from gut microbiomes, hydrothermal vents, and soil, share a common vitamin B12‐binding function. These augmented β‐jellyroll proteins bind vitamin B12 via extended loops. Our findings establish sequence‐diverse DUF4465 proteins as a widespread class of B12‐binding proteins, highlighting ...
Charlea Clarke   +4 more
wiley   +1 more source

PHYRN: a robust method for phylogenetic analysis of highly divergent sequences.

open access: yesPLoS ONE, 2012
Both multiple sequence alignment and phylogenetic analysis are problematic in the "twilight zone" of sequence similarity (≤ 25% amino acid identity). Herein we explore the accuracy of phylogenetic inference at extreme sequence divergence using a variety ...
Gaurav Bhardwaj   +14 more
doaj   +1 more source

Level number sequences for trees

open access: yesDiscrete Mathematics, 1987
Define the level of a node v in a rooted tree t as the number of nodes on the chain connecting v to the root of t (including both end nodes). The level number sequence of a tree t describes the numbers \(n_ 1,n_ 2,..\). of nodes at the different levels 1,2,....
Flajolet, Philippe, Prodinger, Helmut
openaire   +1 more source

Comparative Analyses of Phenotypic Sequences Using Phylogenetic Trees [PDF]

open access: yesThe American Naturalist, 2019
AbstractPhenotypic sequences are a type of multivariate trait organized structurally, such as teeth distributed along the dental arch, or temporally, such as the stages of an ontogenetic series. However, unlike other multivariate traits, the elements of a phenotypic sequence are arranged along a vector, which allows for distinct evolutionary patterns ...
Caetano, Daniel S., Beaulieu, Jeremy M.
openaire   +2 more sources

Predicting Epileptogenic Tubers in Patients With Tuberous Sclerosis Complex Using a Fusion Model Integrating Lesion Network Mapping and Machine Learning

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Accurate localization of epileptogenic tubers (ETs) in patients with tuberous sclerosis complex (TSC) is essential but challenging, as these tubers lack distinct pathological or genetic markers to differentiate them from other cortical tubers.
Tinghong Liu   +11 more
wiley   +1 more source

Unraveling the Molecular Mechanisms of Glioma Recurrence: A Study Integrating Single‐Cell and Spatial Transcriptomics

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Glioma recurrence severely impacts patient prognosis, with current treatments showing limited efficacy. Traditional methods struggle to analyze recurrence mechanisms due to challenges in assessing tumor heterogeneity, spatial dynamics, and gene networks.
Lei Qiu   +10 more
wiley   +1 more source

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