Results 51 to 60 of about 199,466 (296)

Gene Loss and Evolutionary Rates Following Whole-Genome Duplication in Teleost Fishes [PDF]

open access: yesMolecular Biology and Evolution, 2006
Teleost fishes provide the first unambiguous support for ancient whole-genome duplication in an animal lineage. Studies in yeast or plants have shown that the effects of such duplications can be mediated by a complex pattern of gene retention and changes in evolutionary pressure.
Brunet, Frédéric   +7 more
openaire   +4 more sources

Copy-number changes in evolution: rates, fitness effects and adaptive significance

open access: yesFrontiers in Genetics, 2013
Gene copy-number differences due to gene duplications and deletions are rampant in natural populations and play a crucial role in the evolution of genome complexity.
Vaishali eKatju, Ulfar eBergthorsson
doaj   +1 more source

Promoter evolution of mammalian gene duplicates

open access: yesBMC Biology, 2023
Background Gene duplication is thought to be a central process in evolution to gain new functions. The factors that dictate gene retention following duplication as well paralog gene divergence in sequence, expression and function have been extensively ...
Evgeny Fraimovitch, Tzachi Hagai
doaj   +1 more source

Ancient whole genome duplications and the evolution of the gene duplication and loss rate [PDF]

open access: yes, 2019
AbstractGene tree - species tree reconciliation methods have been employed for studying ancient whole genome duplication (WGD) events across the eukaryotic tree of life. Most approaches have relied on using maximum likelihood trees and the maximum parsimony reconciliation thereof to count duplication events on specific branches of interest in a ...
Zwaenepoel, Arthur, Van de Peer, Yves
openaire   +1 more source

Unified modeling of gene duplication, loss, and coalescence using a locus tree [PDF]

open access: yesGenome Research, 2012
Gene phylogenies provide a rich source of information about the way evolution shapes genomes, populations, and phenotypes. In addition to substitutions, evolutionary events such as gene duplication and loss (as well as horizontal transfer) play a major role in gene evolution, and many phylogenetic models have been developed in order to reconstruct and ...
Rasmussen, Matthew D., Kellis, Manolis
openaire   +4 more sources

Diversification of Ubiquinone Biosynthesis via Gene Duplications, Transfers, Losses, and Parallel Evolution

open access: yesMolecular Biology and Evolution, 2023
Abstract The availability of an ever-increasing diversity of prokaryotic genomes and metagenomes represents a major opportunity to understand and decipher the mechanisms behind the functional diversification of microbial biosynthetic pathways.
Katayoun Kazemzadeh   +14 more
openaire   +3 more sources

Gene duplicability of core genes is highly consistent across all angiosperms [PDF]

open access: yes, 2016
Gene duplication is an important mechanism for adding to genomic novelty. Hence, which genes undergo duplication and are preserved following duplication is an important question. It has been observed that gene duplicability, or the ability of genes to be
De Smet, Riet   +5 more
core   +4 more sources

Extensive horizontal gene transfer, duplication, and loss of chlorophyll synthesis genes in the algae [PDF]

open access: yesBMC Evolutionary Biology, 2015
Two non-homologous, isofunctional enzymes catalyze the penultimate step of chlorophyll a synthesis in oxygenic photosynthetic organisms such as cyanobacteria, eukaryotic algae and land plants: the light-independent (LIPOR) and light-dependent (POR) protochlorophyllide oxidoreductases.
Hunsperger, Heather M   +2 more
openaire   +2 more sources

Gene tree parsimony for incomplete gene trees: addressing true biological loss

open access: yesAlgorithms for Molecular Biology, 2018
Motivation Species tree estimation from gene trees can be complicated by gene duplication and loss, and “gene tree parsimony” (GTP) is one approach for estimating species trees from multiple gene trees.
Md Shamsuzzoha Bayzid, Tandy Warnow
doaj   +1 more source

Anopheline salivary protein genes and gene families: an evolutionary overview after the whole genome sequence of sixteen Anopheles species [PDF]

open access: yes, 2017
Background: Mosquito saliva is a complex cocktail whose pharmacological properties play an essential role in blood feeding by counteracting host physiological response to tissue injury.
ARCA', Bruno   +3 more
core   +2 more sources

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