Sentences with phrase «as phylogenetic»

Sequencing technology did not affect the percentage of sequence sets aligning to the genome as much as the phylogenetic relationships among the species.

A family tree, also known as a phylogenetic tree, uses DNA to show how new species have evolved over time.

As phylogenetic studies advance to include progressively more sequence data, new techniques are being developed to obtain such data sets.

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.?

As phylogenetic analysis becomes increasingly robust, it has become clear that the traditional «Tree of Life» diagram is insufficient to relay the myriad complexities of genomic movement and adaptations in the evolutionary process.

Kearney has devoted her academic and professional work to the study of biodiversity, evolutionary biology and evolutionary history of organisms, a field known as phylogenetics.

Not exact matches

Add to this, phylogenetic analyses of both extant and extinct forms corroborate the progression as observed in the fossil record.

According to the intention of its founder, genetic epistemology should examine how scientific thinking, as it pertains to the established sciences, becomes possible in the development of the individual from child to adult; genetic epistemology should further ask about the relationships between this ontogenetic process and the phylogenetic process of the history of humankind as the history of science.

As the name «genetic ontology» indicates, one general assumption is that the human's statements about reality express the experience of a genesis of being — and to be sure in a phylogenetic as well as in an ontogenetic sense, that is, in the form of an historical - evolutionary as well as an individual procesAs the name «genetic ontology» indicates, one general assumption is that the human's statements about reality express the experience of a genesis of being — and to be sure in a phylogenetic as well as in an ontogenetic sense, that is, in the form of an historical - evolutionary as well as an individual procesas well as in an ontogenetic sense, that is, in the form of an historical - evolutionary as well as an individual procesas in an ontogenetic sense, that is, in the form of an historical - evolutionary as well as an individual procesas well as an individual procesas an individual process.

Regarding phlyogeny v. phylogenetics, if what you meant to say was that phylogeny based on morphology has been shown to be false or is confounded by unreasonably high error rates in light of phylogenetic techniques, you're patently incorrect as the prior trees based on morphology have consistently, albeit not perfectly, matched the trees produced by genetic comparisons.

Treating each tale as a species that mutates over time, they've borrowed techniques from phylogenetics (the study of evolutionary relationships between living organisms) to map stories onto the tree of Indo - European languages.

«If we are to understand the evolution of certain key features of animals, such as their nervous systems, tissue organization and organs, we first have to clarify the early phylogenetic relationships» Wörheide explains.

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.

Researchers from Emory University in Atlanta report in the online journal PLoS Neglected Tropical Diseases that they used phylogenetics — the study of the evolutionary link between organisms — to study 26 geographically scattered strains of a family of bacteria known as Treponemes, which are behind the sexually transmitted disease syphilis as well as related nonvenereal infections such as yaws.

«Phylogenetic reconstruction confirmed that domestic horses do not form a single monophyletic group as expected if descending from Botai,» the authors wrote.

The relationships between the various cancerous cells from a single person can be plotted out in much the same way as evolutionary biologists plot relationships between species: by drawing phylogenetic trees, branching diagrams that trace «descendants» back to a common ancestor.

Most attempts to date early molecular phylogenetic trees used the emergence of eukaryotes (around 2.0 billion years B.P.) as a calibration point.

Computational genomics includes: bio-sequence analysis, gene expression data analysis, phylogenetic analysis, and more specifically pattern recognition and analysis problems such as gene finding, motif finding, gene function prediction, fusion of sequence and expression information, and evolutionary models.

For years, scientists have been debating the phylogenetic position of brachiopods and molluscs, as well as their affinities for other animals in the same group, the Lophotrochozoa, comprising segmented worms, clams, oysters, snails, squids, and so on.

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.

The paper condemned the Linnaean system as «a body of conventions based on a pre-Darwinian worldview» and broadly outlined an alternate phylogenetic system of taxonomy.

Virologist Bart Haagmans of Erasmus MC in Rotterdam, the Netherlands, says he has submitted a letter to NEJM to point out this issue, as well as what he claims are errors in the phylogenetic tree in Madani's paper.

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

The study, published as the cover article in BioMed Central's Avian Research, led by the Earlham Institute and the Museum of Vertebrate Zoology at the University of California, explores the phylogenetic relationship between two forms of Harriers (Circus cyaneus); the Eurasian Hen Harrier (C. c. cyan ecus) and the American Northern Harrier (C. c. hudsonius) to distinguish their ancestry and evolution.

As Konrad Lorenz, the famous ethologist, shows in Behind the Mirror, these characteristics become increasingly evident as we look along the phylogenetic series leading to Homo sapiens sapienAs Konrad Lorenz, the famous ethologist, shows in Behind the Mirror, these characteristics become increasingly evident as we look along the phylogenetic series leading to Homo sapiens sapienas we look along the phylogenetic series leading to Homo sapiens sapiens.

As for how gorillas became infected, phylogenetic analyses suggest that chimpanzees were the original «reservoir» of SIVgor.

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.

I do think, though, that you can get almost as much phylogenetic information out of a strand of protein — and finding that is not impossible.

Forster recognized that phylogenetic analysis, a mathematical method used to reconstruct genetic relationships between species, could apply to languages as well.

Dr. Carolyn Wessinger, who recently published «Multiplexed shotgun genotyping resolves species relationships within the North American genus Penstemon» in the American Journal of Botany, said that as an evolutionary geneticist, «I never thought I would become involved in a phylogenetic study.»

The developmental processes underlying these two types of distolingual cusp are unknown, and the validity of the distinction is based on phylogenetic utility and homology rather than cusp position, as in other mammalian groups.

The branch uniting the fungi and animals is well - supported based on a number of molecular phylogenetic datasets, including the nuclear small subunit ribosomal RNA gene (Wainwright et al., 1993; Bruns et al. 1993), unique and shared sequence insertions in proteins such as elongation factor 1α (Baldauf and Palmer, 1993), entire mitochondrial genomes (Lang et al., 2002), and concatenated protein - coding genes (Steenkamp et al., 2006).

A multiple sequence alignment of selected genes from all 95 unique, fully - sequenced adenovirus genomes in GenBank and TMAdV is performed and the results displayed as a radial phylogenetic tree.

For this general overview, large collections of SAGs will be analysed at the 18S rDNA level to obtain a biodiversity inventory, and to identify a set of related uncultured lineages potentially occupying a similar ecological niche (i.e. bacterivory) as ascertained by their phylogenetic placement.

Until now, searchers in the universal - ancestor treasure hunt have followed a hallowed chart known as the ribosomal RNA phylogenetic tree.

Using this approach, we performed a systematic phylogenetic and protein domain architecture - based study, encompassing the entire proteomes of all human Herpesviridae, as well as of select non-human herpesviruses, to define Strict Ortholog Groups (SOGs).

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.

However, the present analysis indicates that members of distinct RFLP spacer groups behave as distinct phylogenetic entities.

The phylogenetic tree depicted in figure 1 demonstrates that each RFLP type clustered as a distinct phylogenetic entity.

The systematic characterization of somatic mutations fed nicely into a phylogenetic analysis, which revealed that all d42m1 derived clones were related (genetically speaking) to one another, while quite distinct from the other sarcoma (H31m1) as well as normal fibroblast cells.

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.

The new phylogenetic analyses use the same model as the original paper but when additional modern Aboriginal and African sequences are added they show that all the ancient Australian sequences are well within what is expected for modern human variation.

Phylogenetic relationships in Figures 1, 2, 3, 4, 5 are largely confirmatory of recent studies on higher - level relationships among primates [3], [12], [15], [21], [22], as well as relationships within Lorisiformes [3], [12], [15],, Lemuriformes [3], [7], [8], [11], [12], [15], [25]--[38], Tarsiiformes [39], [40], Catarrhini [3], [12], [15], [41]--[50], and Platyrrhini [3], [12], [15], [51]--[62].

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.

This biases our results towards assuming deeper origins of genes than may be the case (if, for example, some phylogenetic incongruence arises from horizontal gene transfer), but we consider this property desirable as it makes our analyses conservative.

It is fair to say the phylogenetic placement and taxonomic assignment of H. habilis will remain open to debate for a very long time for, as Dr. Bernard Wood has suggested, it is equally difficult to assign these fossils to Australopithecus or Homo.

In other cases, such as cud chewing, they need to be inferred from the phylogenetic relationships of the fossil forms.

Because the polyT repeat is reported as the key variant to define TOMM40 clades A and B, 12 we used this marker and APOE isoform information to perform analyses based on phylogenetic groups as described by Roses et al. 12 Haplotype phase was estimated using PHASE software.22 The phylogeny, which represents the evolutionary relatedness of the haploytpes, was estimated using neighbor - joining with 10 000 bootstrapping replicates in the CLC DNA workbench (CLC bio, Aarhus, Denmark)(Supplemental Figure 3; http://neuroscienceresearch.wustl.edu/Pages/cruchaga2011.aspx).

Our project seeks to uncover the as - of - yet unresolved phylogenetic relationship of bark and ambrosia beetle - associated fungi, and use this framework to address questions that link patterns of fungal genome evolution with large - scale beetle ecology.

We propose some major phylogenetic rearrangements, such as in haplogroup P where we delinked P4a and P4b and redefined them as P4 (New Guinean) and P11 (Australian), respectively.