Sentences with phrase «phylogenetic trees using»
Most attempts to date early molecular phylogenetic trees used the emergence of eukaryotes (around 2.0 billion years B.P.) as a calibration point.
https://www.scientificamerican.com/ Not exact matches
To better understand how frogs evolved, scientists created a new phylogenetic tree — a branching diagram of evolutionary relationships — using data from hundreds of frog genomes.
Today, scientists use computer algorithms to help construct elaborate phylogenetic, or evolutionary, trees.
Professor Gert Wörheide of LMU said: «Indeed, a flip - flopping dataset is a dataset that supports different evolutionary histories or phylogenetic trees, when analysed using different evolutionary models.
To discover Archie's place in the primate family tree, the research team spent 10 years developing and using the world's largest phylogenetic data matrix.
A family tree, also known as a phylogenetic tree, uses DNA to show how new species have evolved over time.
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.
A 2009 Science paper that used Helicobacter pylori bacteria to trace the peopling of the Pacific relied on Treefinder to produce the microbes» phylogenetic tree.
A German scientist has barred researchers in «immigration - friendly» countries from using Treefinder, a software program he invented for building phylogenetic — or evolutionary — trees.
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.
Phylogenetic inference was carried out for each supermatrix using Exascale Maximum Likelihood (ExaML) v1.0.2 (sco.h-its.org/exelixis/software.html) under the «GAMMA» model of nucleotide substitutions and the starting trees generated above.
«Previously, phylogenetic trees were constructed from standard sets of genes and were used to identify the relationships of species,» said Gloria Coruzzi, a professor in New York University's Center for Genomics and Systems Biology and the principal investigator of the NSF grant.
Phylogenetic trees were constructed using the nt sequences of nonstructural protein gene ORF1a and ORF1b.