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Phylogenetic in Biological News

Scientists develop new method to investigate origin of life

... to generate evolutionary profiles -- also called phylogenetic profiles -- that are compared all-against-all. ... match and creates a tree-like diagram, called a phylogenetic tree, based on the retroelements' similarities to ... evolutionary distance estimates and, hence, phylogenetic relationships among retroelements. Patterson ...

University of Michigan installs second Genomatix Genome Analyzer

... from any mapping procedure. Clustering and peak finding, analysis for phylogenetic conservation, large scale correlation analysis with annotated genomic ... over-representation, binding partner analysis, framework identification, phylogenetic conservation, regulatory SNP effects) and much more are all processes ...

Early family ties: No sponge in the human family tree

... biological studies. The latter explore the functions of genes, and deduce phylogenetic relationships from gene sequences. Aiming to resolve these ... acid positions. Using computer analyses, the researchers then estimated a phylogenetic tree that displays how related the studied animals are. One of the most ...

CRG buys Genomatix' Next Generation Sequencing analysis solution

... or any other mapping procedure, clustering and peak finding, analysis for phylogenetic conservation, large scale correlation analysis with any annotated genomic ... over-representation, binding partner analysis, framework identification, phylogenetic conservation, regulatory SNP effects) and much more. ...

Boehringer Ingelheim uses Genomatix' Next Generation Sequencing data analysis systems

... or any other mapping procedure. Clustering and peak finding, analysis for phylogenetic conservation, large scale correlation analysis with annotated genomic ... over-representation, binding partner analysis, framework identification, phylogenetic conservation, regulatory SNP effects) and much more are all processes ...

New computational technique allows comparison of whole genomes as easily as whole books

... length of 18 base pairs, this test created a family tree identical to the phylogenetic trees constructed by scientists using genetic, morphological, anatomical, ... In most of the cases where the FFP grouping disagreed with an accepted phylogenetic grouping, the problem organism had been the subject of debate among ...

Genomatix joins Illumina-Connect program

... and surrounding regions. Clustering and peak finding, analysis for phylogenetic conservation, large scale correlation analysis with annotated genomic ... over-representation, binding partner analysis, framework identification, phylogenetic conservation, regulatory SNP effects) and much more are all processes ...

Microscopic morphology adds to the scorpion family tree

... to breathe air. Scorpions were traditionally placed at the base of the phylogenetic tree, as a sister group to all other arachnids, but molecular data has ... of whether the book lung evolved once, at the base of the arachnid phylogenetic tree, or more than once, as arachnids adapted to life out of water, is ...

Study: Excessive use of antiviral drugs could aid deadly flu

... see the trajectory of the change," Janies said. The result is called a phylogenetic tree that documents the shared mutations. Phylogenetics is the study of ... species believed to have a common ancestor. In this analysis, the phylogenetic tree is projected into Google Earth and animated to show when mutations ...

African thicket rat malaria linked to virulent human form

... group has been fairly isolated on the malarial family treeuntil now. A new phylogenetic analysis from the Sackler Institute for Comparative Genomics at the ... it to reconstruct the whole genome. The analysis that produced the phylogenetic tree was based on the sequences of the three protein-coding genes (a total ...

Entomological Society of America names 2008 award winners

... In addition to dragonfly systematics, Jessica is interested in phylogenetic methodology. She has examined how phylogenetic hypotheses vary with ingroup and outgroup taxon selection in Dictyoptera, ...

How to build a plant

... formation of axillary meristems, those that produce branches and flowers. phylogenetic analyses showed that both bif2 and ra2 are highly conserved among ... pathways that determine how plants are constructed. Through comparative phylogenetic analyses, they have shown the evolutionary conservation of these traits in ...

Genetic sequencing of protein from T. rex bone confirms dinosaurs' link to birds

... the first use of molecular data to place a non-avian dinosaur in a phylogenetic tree, a "tree of life," that traces the evolution of species. "These ... protein sequences derived from a mastodon bone establishes a close phylogenetic relationship between that extinct species and modern elephants. ...

Present-day species of piranha result from a marine incursion into the Amazon Basin

... diversification. Further investigation involving the construction of a phylogenetic tree by categorizing the studys 21 species allowed phylogenetic relationships between each of them to be established in order to test ...

Scientists sequence genome of the N2-fixing, soil-living bacterium Azotobacter vinelandii

... challenges. A. vinelandii belongs to the Pseudomonadaceae family. The completion of the A. vinelandii genome will serve as an essential phylogenetic anchor point for comparative genomics work with other systems. This research has also helped the Azotobacter vinelandii genome project expand its ...

Two Central High (Philadelphia) grads honored by AIBS

... programs for inferring evolutionary trees, as well as the book Inferring Phylogenies. By playing a major role in establishing a rigorous basis for phylogenetic inference, Felsenstein enhanced the field of systematics and helped shape the way scientists think about evolutionary biology. Another Central ...

U of Minnesota research reveals critical role of evolutionary processes in species coexistence

... we observe in the present are deeply influenced by evolutionary processes in the past. Thanks to the increasing availability of large DNA and phylogenetic databases, we now have the tools to bring an evolutionary perspective into ecology." NCEAS hosts hundreds of scientists a year who analyze vast ...

January GEOLOGY media highlights

... Girard et al. find that these amber inclusions extend the fossil record of six genera from the Late Cretaceous period and support certain molecular phylogenetic assumptions regarding the diversification of marine diatoms in the Early Cretaceous period. French amber probably recorded a transition from an Early ...

Wildflower declines in Thoreau's Concord woods are due to climate changes

... Massachusetts where changes in flowering times were first inventoried by Henry David Thoreau 156 years ago and regularly updated since then. A phylogenetic or evolutionary context now provides an important predictive value for thinking about which plant species will be lost due to rapid climate change, ...

Brain structure provides key to unraveling function of bizarre dinosaur crests

... used to produce sounds for communication. This study demonstrates the power of using an integrated approach combining 3D imaging, growth studies, and phylogenetic sampling to test ideas about the function and evolution of unusual structures in extinct animals. ...

Revealing the evolutionary history of threatened sea turtles

... hawksbill, loggerhead, Kemp's Ridley, and Olive Ridleyand four 'outgroups,' or more distantly related animals. The results formed a well-supported phylogenetic tree, or cladogram, that tells the story of sea turtle evolution and is reported in the journal Molecular Phylogenetics and Evolution . "The ...

Illuminating biology: An evolutionary perspective

... 8:30-9:40: Session 1: Evolution and Conservation This session will focus on how whaling conservation efforts monitor commercial whale meat based on phylogenetic relationships. 9:40-9:50: Break 9:50-10:25: Small group conversations 10:25-10:45: Report back from group 10:45-12:00: Session 2: Evolution ...

Reproducing early and often is the key to rapid evolution in plants

... genetic markers in their chloroplast, nuclear, and mitochondrial genomes. The authors also employed new methods for making some of the largest phylogenetic trees ever built. A clear pattern emerged. Plants with a shorter generation time from the time they germinate to the time that a seed they ...

Genome of saltwater creature could aid understanding of gene grouping

... a genome is "a big effort and a big investment, and so we have to choose carefully," Putnam said. "The motivation for choosing this animal was its phylogenetic position" its relatively low place in the evolutionary chain. Trichoplax is "a tiny little pancake of cells you can barely see without a ...

Microbes, by latitudes and altitudes, shed new light on life's diversity

... soil-abundant Acidobacteria, in the Rocky Mountains in Colorado. They found significant differences, using a combination of classical taxonomic and phylogenetic approaches. Plant communities became less phylogenetically clustered than did microbial life as they drew samples from five sites rising over 24 ...

Ancient Mexican maize varieties

... southwestern USA. Recent studies also support the hypothesis that popcorns are some of the oldest races of maize and group closely with teosinte in phylogenetic analyses. Palomero is an ancient popcorn landrace of the Central and Northern Highlands Group. Vielle-Calzada and his colleagues estimated that ...

Genome sequence of small marine creature sheds light on vertebrate origins

... from two human paralogs and a single amphioxus homolog were all shown to drive gene expression in both amphioxus and the mouse. "This is the widest phylogenetic distance to date over which both the sequence and function of cis -regulatory enhancers has been found to be conserved," explains Holland. The ...

AMNH scientists grace Science & Nature covers

... also drew from analysis of many taxa: by comparing at the genetic level 77 animals from 21 different phyla, he and his colleagues have redrawn the phylogenetic tree of multicellular animals. A new way to conserve the diverse and unique animals and plants in Madagascar was the goal of Raxworthys ...

Cold Spring Harbor Protocols features methods to screen genomes and analyze evolution

... protocol for April is a guide for selecting the proper method for analyzing evolutionary relationships between genes. In "Choosing a Method for phylogenetic Prediction," David Mount from the University of Arizona ( http://bmcb.biology.arizona.edu/mount.html ) provides a step by step process to determine ...

Work with power grids leads to cell biology discovery

... for example, can identify the genes whose removal restores growth in gene-deficient mutants of E. coli and S. cerevisiae, a type of yeast. From a phylogenetic viewpoint, yeast is more similar to humans than E. coli, said Motter, a member of the Northwestern Institute on Complex Systems. Of course, there is ...

Big Mac: The whole world on your plate

... diet, according to researchers who have conducted a unique study of the plants used around the world for food. In the first-ever study of the phylogenetic distribution of the human diet, University of Calgary plant evolutionary ecologist Jana Vamosi, working with a team led by Serban Proches from ...

Evolution is deterministic, not random, biologists conclude from multi-species study

... including cell death, cell division patterns, and related aspects of gonad development. They plotted the evolution of these traits on a new phylogenetic tree, which illustrates how species are related to one another and provides a map as to how evolutionary changes are occurring. Their results ...

Genome comparison of 12 fruit fly species

... and Evolution Group, participated in the research project. According to these researchers, the comparative analysis of multiple genomes within a phylogenetic context largely improves the levels of precision and sensibility of the evolutionary inferences. It also represents a significant step towards ...

Entomological Society announces 2007 award winners

... focused on sharpshooters (Cicadellidae: Cicadellinae), including taxonomy, morphology and DNA-sequence based phylogenies, and consequences of this phylogenetic hypothesis in the classification and behavior of this leafhopper lineage. She took an interest in leafhoppers during her B.S. and M.S. work at ...

Researchers examine closest living relative to primates

... colugos as the closest living relative to primates, we were able to make some very important discoveries about the tree shrews, said Murphy. The phylogenetic uniqueness we documented in Ptilocercus, coupled with its restriction to a lowland forest habitat and limited global range, have certainly identified ...

Symposium marks 30th anniversary of discovery of third domain of life

... of the National Academy of Sciences in October 1977. The papers three-sentence abstract stated simply that the methanogens constitute a distinct phylogenetic group only distantly related to bacteria. A second PNAS paper, published the following month by Woese and Fox, outlined the evidence that there ...

The reservoir of Marburg virus identified in a species of fruit bat

... of viral RNA in the liver and spleen by various methods of nucleotide amplification; a search for Marburg virus-specific antibodies in the blood; phylogenetic characterization of amplified genomic fragments. The analyses detected antibodies directed against Marburg virus in the serum of just one of the 10 ...

DNA analysis shows true dispersal of protozoa

... from around the world. ITS1 is a faster-evolving marker than the more commonly used 18S rDNA and therefore allowed the study to be done at a higher phylogenetic resolution. This approach is robust, being independent of the ability to culture or see the organism being studied. They sequenced gene libraries ...

Study of protein folds offers insight into metabolic evolution

... Their work relies on established techniques of phylogenetic analysis developed in the past decade to plot the ... E. Mittenthal. "We are using the techniques of phylogenetic analysis that systematicists used to build the ... database. They combined these two data sets with phylogenetic reconstructions, or family trees, of protein fold ...
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