Results 51 to 60 of about 6,342,096 (314)

Sociality and the Rate of Molecular Evolution [PDF]

open access: yesMolecular Biology and Evolution, 2005
The molecular clock does not tick at a uniform rate in all taxa but may be influenced by species characteristics. Eusocial species (those with reproductive division of labor) have been predicted to have faster rates of molecular evolution than their nonsocial relatives because of greatly reduced effective population size; if most individuals in a ...
Bromham, L., Leys, R.
openaire   +5 more sources

Molecular phylogeny of Neotropical rock frogs reveals a long history of vicariant diversification in the Atlantic forest

open access: yes, 2018
The Brazilian Atlantic coastal forest is one of the most heterogeneous morphoclimatic domains on earth and is thus an excellent region in which to examine the role that habitat heterogeneity plays in shaping diversification of lineages and species.
Haddad, Celio F. B. [UNESP]   +21 more
core   +1 more source

Fluorescence in situ hybridization to chromosomes as a tool to understand human and primate genome evolution [PDF]

open access: yes, 2005
For the last 15 years molecular cytogenetic techniques have been extensively used to study primate evolution. Molecular probes were helpful to distinguish mammalian chromosomes and chromosome segments on the basis of their DNA content rather than solely ...
Wienberg, Johannes, Wienberg, J.
core   +1 more source

Bacterial N4-methylcytosine as an epigenetic mark in eukaryotic DNA

open access: yesNature Communications, 2022
Eukaryotic DNA can be methylated as 5-methylcytosine and N6-methyladenine, but whether other forms of DNA methylation occur has been controversial. Here the authors show that a bacterial DNA methyltransferase was acquired >60 Mya in bdelloid rotifers ...
Fernando Rodriguez   +3 more
doaj   +1 more source

Exercise Capacity, Physical Activity, Fatigue, and Neurocognitive Function in Adult Survivors of Childhood Acute Lymphoblastic Leukemia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adult survivors of childhood acute lymphoblastic leukemia (ALL) are at risk of reduced exercise capacity, decreased physical activity levels, persistent fatigue, and neurocognitive deficits. The aim was to investigate exercise capacity and physical activity levels of adult survivors of childhood ALL and their associations with ...
Laura Jess   +5 more
wiley   +1 more source

Patterns of molecular evolution of an avian neo-sex chromosome

open access: yes, 2012
Newer parts of sex chromosomes, neo-sex chromosomes, offer unique possibilities for studying gene degeneration and sequence evolution in response to loss of recombination and population size decrease.
Bensch, Staffan,   +4 more
core   +1 more source

Evolutionary genomics of socially polymorphic populations of Pogonomyrmex californicus

open access: yesBMC Biology
Background Social insects vary considerably in their social organization both between and within species. In the California harvester ant, Pogonomyrmex californicus (Buckley 1867), colonies are commonly founded and headed by a single queen (haplometrosis,
Mohammed Errbii   +5 more
doaj   +1 more source

The SoftWipe tool and benchmark for assessing coding standards adherence of scientific software

open access: yesScientific Reports, 2021
Scientific software from all areas of scientific research is pivotal to obtaining novel insights. Yet the coding standards adherence of scientific software is rarely assessed, even though it might lead to incorrect scientific results in the worst case ...
Adrian Zapletal   +3 more
doaj   +1 more source

The Subcellular Proteome of a Planctomycetes Bacterium Shows That Newly Evolved Proteins Have Distinct Fractionation Patterns

open access: yesFrontiers in Microbiology, 2021
The Planctomycetes bacteria have unique cell architectures with heavily invaginated membranes as confirmed by three-dimensional models reconstructed from FIB-SEM images of Tuwongella immobilis and Gemmata obscuriglobus.
Christian Seeger   +5 more
doaj   +1 more source

Classical Complement Pathway Inhibition in a Pediatric Patient With Refractory Immune Thrombocytopenia

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric refractory immune thrombocytopenia (rITP) is generally characterized by persistent thrombocytopenia and failure to achieve a sustained response to multiple standard therapies. We report a 4‐year‐old female with congenital tufting enteropathy, post‐intestinal transplant patient on immunosuppressants, who developed severe rITP ...
Sarah Hsieh   +4 more
wiley   +1 more source

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