Results 141 to 150 of about 87,751 (339)

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Micronuclei and Other Nuclear Abnormalities in Patella Limpet as Biomarkers of Cytogenotoxicity in Recreational Port Waters

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Over the past decades, the growth in human population and economic activities has led to an increase in maritime traffic. This rise puts additional pressure on marine environments, vessel fuel spills being considered to have a major impact on the ecosystem.
Carlos Valiente‐Diaz   +2 more
wiley   +1 more source

Genomic variation within alpha satellite DNA influences centromere location on human chromosomes with metastable epialleles

open access: yesGenome Research, 2016
Alpha satellite is a tandemly organized type of repetitive DNA that comprises 5% of the genome and is found at all human centromeres. A defined number of 171-bp monomers are organized into chromosome-specific higher-order repeats (HORs) that are ...
M. E. Aldrup-MacDonald   +4 more
semanticscholar   +1 more source

One Yeast, Sixteen Synthetic Chromosomes, Infinite Possibilities

open access: yesYeast, EarlyView.
ABSTRACT The evolution of the yeast, Saccharomyces cerevisiae, from a genetically tractable model organism to a chassis for genome‐scale engineering represents one of the most influential trajectories in eukaryotic biology. The Synthetic Yeast Genome Project (Sc2.0) embodies the current height of this trajectory, having now delivered functional ...
Edward Archer   +4 more
wiley   +1 more source

KAT7/HBO1/MYST2 Regulates CENP-A Chromatin Assembly by Antagonizing Suv39h1-Mediated Centromere Inactivation

open access: yesDevelopmental Cell, 2016
Summary Centromere chromatin containing histone H3 variant CENP-A is required for accurate chromosome segregation as a foundation for kinetochore assembly.
Jun-Ichirou Ohzeki   +9 more
semanticscholar   +1 more source

Centromere repositioning in mammals

open access: yes, 2012
The evolutionary history of chromosomes can be tracked by the comparative hybridization of large panels of bacterial artificial chromosome clones. This approach has disclosed an unprecedented phenomenon: 'centromere repositioning', that is, the movement ...
Capozzi O   +4 more
core   +1 more source

Temporal control of epigenetic centromere specification [PDF]

open access: yes, 2012
All living organisms require accurate mechanisms to faithfully inherit their genetic material during cell division. The centromere is a unique locus on each chromosome that supports a multiprotein structure called the kinetochore.
Valente, Luis P   +2 more
core   +1 more source

Genetic Tools in the Nakaseomyces clade for Evolutionary Comparisons of Signal Transduction Pathways

open access: yesYeast, EarlyView.
ABSTRACT The genus Nakaseomyces provides four species that are closely related but have different characteristics. For example, N. glabratus (formerly known as Candida glabrata) is a common human pathogen, whereas N. bracarensis and N. nivariensis have been isolated in clinical settings but are not common human pathogens. N.
Maria Abraham   +2 more
wiley   +1 more source

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

open access: yesInsect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn   +8 more
wiley   +1 more source

Genetic manipulation of centromere function.

open access: yes, 1987
A conditional centromere was constructed in Saccharomyces cerevisiae by placing the centromere of chromosome III immediately downstream from the inducible GAL1 promoter from S. cerevisiae.
Bloom, K, Hill, A
core   +1 more source

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