Sentences with word «phylogeny»
Phylogeny refers to the study of the evolutionary history and relationships among different species. It shows how living organisms are related and how they have evolved over time. Full definition
Cabral spent more than a year and a half at the Royal Botanic Garden Edinburgh, studying the molecular phylogeny of Vitex and its historical geographical dispersion with Möller.
sciencemag.org
Despite the diversity of organisms containing plastids, the morphology, biochemistry, genomic organisation, and molecular phylogeny of plastid RNAs and proteins suggest a single origin of all extant plastids — although this theory is still debated.
Mapping mutations on phylogenies Nielsen, R. 2002.
«Very few studies have investigated Alzheimer's disease pathology in chimpanzees, the species closest in phylogeny and most genetically related to humans,» said senior author Mary Ann Raghanti, Ph.D., associate professor and interim chair of anthropology at Kent State.
Bilaterian phylogeny based on analyses of a region of the sodium - potassium ATPase alpha - subunit gene.
Our strategy is to build a model in the form of a population phylogeny of the relationship between modern European populations, into which we can place the ancient samples.
In such cases we need to model population phylogenies with admixture and gene flow, and further development on rarecoal will enable us to study these more complex scenarios.
Also attending the event was Lori Johns of Phylogeny Contemporary who is based out of Seattle, WA but exhibits around the country.
A proteome - based phylogeny shows that the amoebozoa diverged from the animal - fungal lineage after the plant - animal split, but Dictyostelium seems to have retained more of the diversity of the ancestral genome than have plants, animals or fungi.
The paper's careful study of fish phylogeny supports an existing notion that Nogo - A may be a recent evolutionary development that correlates with more complex nervous systems and more complex functions, says Stephen Strittmatter, a neurologist at Yale University in New Haven, Connecticut.
«The current need for large phylogenies and the high priority placed on them by high impact journals can result in shortcuts, wherein large - scale phylogenetic trees are cobbled together from disparate existing sources, even taxonomy, but often without hard data behind the placement of many species,» Harvard evolutionary biologist Gustavo Bravo and his colleagues wrote on 30 January in PeerJ.
Our supermatrix expands upon these previous studies by bringing together sequences from a wide array of molecular studies, supplemented by new data for four genes, to yield a single primate phylogeny with strong support for the monophyly of most primate genera, families, and higher - level taxa (Primates, Strepsirrhini, Lemuriformes, Lorisiformes, Haplorhini, Tarsiiformes, Simiiformes, Catarrhini, Platyrrhini).
Aiello and his colleagues collected fin aspect ratio measurements from hundreds of Labrid species at the Field Museum, and combined that data with a genetic phylogeny of 340 Labrids developed by Mark Westneat, PhD, professor of Organismal Biology and Anatomy and co-author on the study.
The result is the largest and most comprehensive studies of fish phylogeny to date.
The title of the paper is «Nematode - associated Microbial Taxa Do Not Correlate With Host Phylogeny, Geographic Region or Feeding Morphology in Marine Sediment Habitats.»
Hox clusters and bilaterian phylogeny.
The robust phylogeny and the close position of the subfossil polar bear specimen to the polar / brown bear split offer an ideal opportunity to ultimately settle a time of origin for the polar bear.
«This scenario reconciles the discrepancy in the nuclear DNA and mitochondrial DNA phylogenies of archaic hominins and the inconsistency of the modern human - Neanderthal population split time estimated from nuclear DNA and mitochondrial DNA,» says researcher Johannes Krause, also of the Max Planck Institute for the Science of Human History.
The new sequence data have been deposited in public databases, and are freely available for use by other researchers in further studies of cervid phylogeny.
She limited her investigation to animals whose phylogenies (or historical lineages) have already been published.
He is interested in whether there may be a unifying principle for the operation of biological networks, one that cuts across phylogeny and type of network, that could revolutionize the natural sciences.
«We managed to infer epidemiological parameters reflecting how fast the recent Ebola virus outbreak was initially growing in Sierra - Leone using only phylogenies inferred from the viral DNA sequences obtained from 78 infected patients,» Alizon said.
Maximum likelihood phylogeny of 321 RABV sequences from five concatenated genes.
These include two flagship papers: one exploiting genomic - scale data to generate a highly supported avian order phylogeny that resolves many debates on the timing and topology of their radiation; the other a comparative genomic analysis exploring avian genome evolution and the genetic basis of complex traits.
Previous orchid phylogenies had compared just a few genes found in chloroplasts, the organelles that turn water and CO2 into sugars.
He adds that, in palaeontology, «phylogenies change from week to week».
Wessinger's motivation for exploring the Penstemon phylogeny came from a «need to identify pairs of closely related species that have flowers adapted to different pollinators to use for genetic mapping studies.»
Comprehensive Genome Analysis of Carbapenemase - Producing Enterobacter spp.: New Insights into Phylogeny, Population Structure, and Resistance Mechanisms.
Evolution of genes and genomes on the Drosophila phylogeny Clark, A. G., M. B. Eisen, D. R. Smith, C. M. Bergman et al. 2007.
Maximum likelihood estimation of population divergence times and population phylogenies under the infinite sites model Nielsen.
Due to this problem, competing ideas abound regarding the validity of rudolfensis and its proper place in hominid phylogeny.
Although the genome - wide species phylogeny supported a single topology (fig. 1), rarely will the entire genome reflect a single topology, as incomplete lineage sorting and gene flow can distort the underlying species tree (Degnan and Rosenberg 2009).
A five - gene phylogeny of Pezizomycotina.
But this is failing to perceive the basic difference between the individual and the evolutionary developments (ontogeny vs. phylogeny).