Sentences with word «phylogenetic»

One of the outputs of the evolutionary analysis of genomes is the reconstruction of phylogenetic trees that map out common ancestors, their descendants, and the relationships between the different species.

Assembly of mitochondrial genomes was performed using the following strategy: species - specific mitochondrial reference genomes were selected from initial species identification based on phylogenetic analyses of amplicon sequences (results not shown).

Towards a phylogeny of the Metazoa: evaluating alternative phylogenetic positions of Platyhelminthes, Nemertea, and Gnathostomulida, with a critical reappraisal of cladistic characters.

These bursts were found in phylogenetic trees created for 22 microbial communities, chosen to represent a breadth of habitat types: plant, marine, and human gut and skin.

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.

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

seek to identify the mutational processes underlying mutational signatures found in cancers, characterise the mutational processes operating in normal cells, use phylogenetic analyses of somatic mutations in humans to explore cellular lineages during embryonic development

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

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

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

Microbial eukariotes cover the widest phylogenetic diversity in the eukaryotic tree of life and are essential components of all Earth's ecosystems.

UniFrac: a new phylogenetic method for comparing microbial communities — C Lozupone — Applied Environmental Microbiology — 2005

Garamszegi, L. Z. & Møller, A. P. Effects of sample size and intraspecific variation in phylogenetic comparative studies: a meta - analytic review.

The fossil record provides a progression up through the major classes of life that is supported by phylogenetic analysis of both extant and extinct species.

MacIver et al. used phylogenetic approaches to document considerable expansions in eye size that occurred well before land colonization.

Her research combines the disciplines of paleontology, comparative anatomy, and development to formulate and test phylogenetic hypotheses of vertebrate interrelationships.

The researchers used their findings to map the evolution of a cancer through a patient's body, and draw up a so - called phylogenetic tree for each patient to demonstrate how the cancer had spread and where each metastasis had come from.

In order to reconstruct the evolutionary history of the group and clarify the relationships between its members, molecular phylogenetic data are essential.

Based on phylogenetic branch shortening, we then molecularly dated 10 Neanderthal sequences that had not been radiocarbon dated previously or were considered beyond the radiocarbon dating detection limit (Table 1).

Bayesian phylogenetic analysis in BEAST [36] of all unique mainland and island haplotypes (Fig. 3) used the earliest island fox radiocarbon date as a prior estimate for the coalescence of all island fox lineages.

(See mental representation; phylogenetic model) Coldness — On the warmth / affection scale of the warmth dimension of parenting, coldness refers to the lack or absence (or perceived absence) of emotional warmth.

Rainford and Mayhew's paper leverages a massive new data set on relationships in the Hexapoda, as well as newer phylogenetic approaches, to reexamine conventional wisdom about relative diversity and diversification of clades in association with diet.

Life history evolution of marine invertebrates: new views from phylogenetic systematics.

In September, German scientist Gangolf Jobb announced on his website that researchers in eight European countries, including Germany and the United Kingdom, were no longer allowed to use Treefinder, which builds phylogenetic trees from sequence data.

A higher - level phylogenetic classification of the Fungi.

They created phylogenetic, or evolutionary, trees for both the virus families and their host species and then compared them.

We identify ancient phylogenetic structure within African haplogroups and resolve a long - standing ambiguity deep within the tree.

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.

Account for phylogenetic relatedness by creating a «family tree» that shows the linkages among various plants.

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.

Journey into Phylogenetic Systematic.

They apply phylogenetic techniques to understand the relationships among bacteria and to trace the evolutionary history of the genes they maintain, many of which are subject to horizontal gene transfer.

al. (1999) for example, recently conducted phylogenetic studies divergences among animal phyla, plants, animals and fungi.

These include: 1) finding and describing new fossils in Precambrian strata, 2) using analytical tools to examine those fossils in order to determine taxonomic affinity, taphonomy, functional morphology, and paleoecology, 3) using modern analogs to determine phylogenetic relationships and physiology of early eukaryotes and animals, and 4) combining multiple sources of data to create a timeline of biotic and abiotic events in the Precambrian.

Each OTU groups together individuals having close phylogenetic relationships.

Furthermore, despite the claim that evolution has no application, phylogenetic comparisons of humans and other organisms allows us to identify the precise location and putative function of genes responsible for developmental disorders.

Today, many ecological and evolutionary studies depend on a wide range of molecular tools to infer phylogenetic relationships, uncover population structure within species, and track quantitative traits.

The 150,000 - year window is based on mitochondrial genome data, and since nuclear data show a different phylogenetic pattern and confirm a sister relationships between the two species, it is no surprise that an estimated split between these two species appear to be older.

In evolutionary biology, convergence describes the development of similar constructional principles without the organisms having a common phylogenetic origin.

Notably, the closest identified phylogenetic relative to TMAdV among the complete genomic sequences available in GenBank is a rhesus monkey adenovirus, SAdV - 3 (Fig. 4; Table 2).