Sentences with phrase «with phylogenetic»

The genus Dugesia in Australia, with its phylogenetic analysis and historical biogeography (Platyhelminthes, Tricladida, Paludicola).

Here, we screened more than 5,000 amphibians from across four continents and combined experimental assessment of pathogenicity with phylogenetic methods to estimate the threat that this infection poses to amphibian diversity.

Additional lines are being developed to analyze next - generation sequencing transcriptome data, and to construct and work with phylogenetic trees.

DNA Subway ties together key bioinformatics tools and databases to assemble gene models, investigate genomes, work with phylogenetic trees and analyze DNA barcodes.

The phylogenetic mosaic of chlamydial genes, including a large number of genes with phylogenetic origins from eukaryotes, implies a complex evolution for adaptation to obligate intracellular parasitism.

Not so with phylogenetic potentialities.

Not exact matches

However, with the development of phylogenetic analyses, we can see speciation at the genetic level (i.e. highly reduced or absent interbreeding between subpopulations) without the distinct morphological differences one would require if phenotypes were the only measure.

Furthermore, phylogenetic analysis of extant bats conforms with evolutionary predictions of their relationship to other Eocene mammal lineages, indicating common ancestry.

We can empirically employ phylogenetic analysis to discover genes associated with developmental disease.

Thus, biological evolution appears to be associated with a final causation or teleology — the reciprocal maintenance and proliferation of adaptive species over the phylogenetic scale in an evolving and stable physical universe.

Within - group distances between infants within specific delivery mode and feeding method groups revealed similar average phylogenetic distances among infants who were born vaginally compared with those born by cesarean delivery (Figure 2A).

In fact, their taxonomic analysis displaces it from its alleged perch on the phylogenetic tree: «The Haarlem specimen is not a member of the Archaeopteryx clade,» says Rauhut, a paleontologist in the Department of Earth and Environmental Sciences at LMU who is also affiliated with the Bavarian State Collections for Paleontology and Geology in Munich.

The team combined the new fossil evidence with previously collected genetic data from living birds to update the phylogenetic tree of bird evolution.

What opened the door for me was phylogenetics, the field of biology that deals with identifying and understanding the relationships among the many different kinds of life.

However, the results of more recent phylogenetic analyses, derived from comparisons between sequences of specific genes and of whole genomes, seemed to point to Ctenophora as the first group that parted company with the lineage from which the rest of the animal kingdom (including sponges) evolved.

And the «phylogenetic» concept combines descent with «diagnosable» differences in physical traits.

Appearing in the journal's February 2015 issue, the study, «Phylogenetic visualization of the spread of H7 influenza A viruses» uses genomic analysis to look at the phylogenetic history of genes that assort with HPhylogenetic visualization of the spread of H7 influenza A viruses» uses genomic analysis to look at the phylogenetic history of genes that assort with Hphylogenetic history of genes that assort with H7 influenza.

The scientists combined phylogenetics — the study of evolutionary relationships between different species, with genomics — the study of how the genome of an organism conditions its biology.

Bowern counters that the phylogenetic methods are actually ideal for investigating borrowing, because you can test models with different rates of borrowing and see how well the resulting trees match known facts.

Maximum likelihood phylogenetic estimation from DNA sequences with variable rates over sites: Approximate methods

Los Alamos National Laboratory conducts a wide range of biological research efforts as part of its national security science mission, with such research as phylogenetic analysis helping to determine safe pathogens and disease transmission pathways.?

These variants enabled them to establish phylogenetic relationships and timelines among the sequences with unprecedented accuracy.

The fossilized skeleton is thought to date from the late Miocene and is unusually complete, providing the researchers with new anatomical and phylogenetic data.

Stankowich et al. used natural history data, including range overlap with potential predators, body size, and activity patterns, in conjunction with comparative phylogenetic analyses on 181 species of mammals to identify patterns of predation risk that could have contributed to the evolution of these two defensive strategies.

The absence of a single gene tree identical to the avian species tree is consistent with studies in yeast (82), indicating that phylogenetic studies based on one or several genes, especially for rapid radiations, will probably be insufficient.

We test this hypothesis through phylogenetic analysis on 48 avian genomes we collected or assembled, representing all commonly accepted extant neognath orders (36, 37) and two palaeognaths, with several nonavian reptiles and human as outgroups.

RAxML - VI - HPC: Maximum likelihood - based phylogenetic analyses with thousands of taxa and mixed models

We also developed a statistical binning approach that improves multispecies coalescent analyses for handling gene trees with low phylogenetic signal to infer a species tree (SM5)(58).

«Although our analysis suggests that the new specimen may represent the most phylogenetically basal Cretaceous bird known to date, this phylogenetic hypothesis should be treated with caution given the incomplete preservation of the skeleton and low phylogenetic support values,» said lead author Dr. WANG Min, Institute of Vertebrate Paleontology and Paleoanthropology (IVPP) of the Chinese Academy of Sciences.

Through phylogenetic analysis, the research team discovered that modern deep - sea mussels are the descendants of shallow - water mussels, and their ancestors migrated to the deep sea approximately 110 million years ago, providing evidence to support a hypothesis that their ancestors survived through an extinction event during the global anoxia period associated with the Palaeocene - Eocene Thermal Maximum which occurred around 57 million years ago.

They then genotyped each sample to determine how the strains were related, and used previous datasets to compare this data and integrate the results in a new phylogenetic tree with other M. bovis found throughout Africa.

An integrative description of Macrobiotus shonaicus sp. nov. (Tardigrada: Macrobiotidae) from Japan with notes on its phylogenetic position within the hufelandi group.

«If we could understand better how these proteins with these additional «integrated» domains were formed during recent evolution, then there is a good chance that we could engineer genes with specific domains to provide resistance to new types of pathogen attack,» says Paul Bailey, lead author of the study who performed the phylogenetic analysis.

Some view this «phylogenetic diversity» as the third leg of the stool with functional and species diversity.

Cross-checks with other, known language relationships prove that the phylogenetic approach works - somewhat to Forster's amazement: «When you think about it, there is no reason for languages to be passed down in the same manner as a DNA molecule, and yet they are,» he says.

However, after comparing the new discovery with previously known fossils, he found it «not possible to establish the precise phylogenetic position of A. sediba in relation to the various species assigned to early Homo ``.

Although TMAdV retains the core genomic features common to all adenoviruses (Fig. 2C), phylogenetic analysis clearly places TMAdV within a separate branch, with no closely related neighbors (Figs. 3 and S1).

The inclusion of 24 additional clade C samples19 in the phylogenetic analysis reveals the expected C1 and C2 split (100 % support) and that HXH, CTC, NGD and the Kartstein Cave dog share a common lineage with C1 dogs (Supplementary Fig. 8).

With the help of phylogenetic analysis, scientists describe three new fungus species from New Zealand.

The fragment shared ∼ 86 % nucleotide identity with its closest phylogenetic relatives in GenBank, SAdV - 18, an Old World vervet monkey adenovirus, and the human species D adenoviruses.

We examined the phylogenetic relationship of the entire mitochondrial genomes of HXH and CTC with a comprehensive panel of modern dogs across four major clades (A — D), modern wolves and coyotes, and previously reported ancient wolf - like and dog - like whole mitochondrial sequences5, 12.

Novel method to identify source - associated phylogenetic clustering shows that Listeria monocytogenes includes niche - adapted clonal groups with distinct ecological preferences.

Estimating the distribution of selection coefficients from phylogenetic data with applications to mitochondrial and viral DNA Nielsen, R. and Z. Yang.

Estimating the distribution of selection coefficients from phylogenetic data with applications to mitochondrial and viral DNA.

Molecular phylogenetic studies of protein homology (i.e., amino acid sequence similarity comparisons with assumptions of mutation rate) date one primordial form within the family to 600 to 700 million years ago, a time period often conjectured to correspond to the divergence of invertebrate and vertebrate ancestors.

She is particularly concerned with assessing the role that fossils play in the interpretation of modern biodiversity and phylogenetics, as well as the role that phenotypic variation plays in the interpretation of vertebrate fossils and systematics.

We define phylogenetic strata as the deepest node in the branch at which at least one detectable homolog is present, where a detectable homolog is defined as a blastp hit where the alignment covers at least 50 % of the shorter protein with at least 30 % positives.

Wiens [63] suggested that it should be possible to design phylogenetic analyses that will resolve higher - level relationships with large numbers of slow - evolving characters and then place additional taxa on this scaffold through the use of a smaller number of more rapidly evolving characters.

The phylogenetic position of the cephalochordate amphioxus, together with its relatively simple and evolutionarily conserved morphology and genome structure, has led to its use as a model for studies of animal evolution, with a special focus on the origin of deuterostomes, chordates, and vertebrates.

Of particular importance is when microorganisms with advanced photosynthetic metabolism first appeared, since molecular phylogenetics suggests that all three domains would have already appeared and significant evolution must have already taken place (Schopf, 2000 and Olson 2006).