Sentences with phrase «phylogenetic studies»

Phylogenetic studies refer to research that compares and analyzes the genetic relationships between different species or groups of organisms. These studies help scientists understand how organisms are evolutionarily related and how they have evolved over time. Full definition
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.
Although hyraxes superficially resemble large rodents or rabbits, both morphological and molecular phylogenetic studies indicate that they are actually most closely related to elephants and sea cows.
Zyskowski and Prum, he says, «have paved the way for using this sort of evidence in phylogenetic studies of other groups.»
The distinctive egg cases (cocoons) of Clitellata, however, are relatively common in the fossil record, although their potential for phylogenetic studies has remained largely unexplored.
Phylogenetic studies indicate that some of these fungi represent ancient southern hemisphere lineages, whereas as others originate from the dispersal of northern hemisphere species followed by local radiation.
Comprehensive Genome Scale Phylogenetic Study Provides New Insights on the Global Expansion of Chikungunya Virus.
Comprehensive Genome Scale Phylogenetic Study Provides New Insights on the Global Expansion of...
Hiv heterosexual dating phylogenetic studies show links between heterosexual women and men who have sex with men.
As phylogenetic studies advance to include progressively more sequence data, new techniques are being developed to obtain such data sets.
The most comprehensive phylogenetic study of Caryophyllales to date is that of Cuénoud et al. (2002), in which 127 taxa of Caryophyllales representing all 29 families were sampled for matK sequence analysis.
Death of an order: a comprehensive molecular phylogenetic study confirms that termites are eusocial cockroaches.
al. (1999) for example, recently conducted phylogenetic studies divergences among animal phyla, plants, animals and fungi.
Phylogenetic studies place them in a supergroup called the opisthokonts, which also include the fungi and a few small parasitic protists.
Uppsala researchers Patric Jern, Alexander Hayward, Göran Sperber, and Jonas Blomberg used the computer program RetroTector and detailed sequence comparisons in so - called phylogenetic studies to map the retrovirus part of the pig genome.
Furthermore, the poly - and paraphyly of several important families of core Caryophyllales demonstrate that additional phylogenetic studies with increased taxon sampling are needed to resolve relationships and develop a truly phylogenetic classification.
I will collect tissue samples for phylogenetic studies, I will collect cells for San Diego Zoo's Frozen Zoo initiative (perhaps one day it can be cloned?)
Phylogenetic studies show that the terriers probably share a common ancestry, and combining data from the three breeds will probably not only allow the mapping of the disease locus but may also identify a minimal critical haplotype with a small number of candidate genes, as has been done for other canine diseases (37, 40).
«We know from molecular phylogenetic studies that the kentrogonids are ancestral to the akentrogenids.
Independent Canarian entomologist Dr. Antonio Machado, who has been collecting and studying this genus of weevils for the last sixteen years and researched 46,500 specimens so far, was helped by geneticist Dr. Mariano Hernández, from the University of La Laguna, Tenerife, Canary Islands, Spain, to undertake a phylogenetic study using three mitochondrial genes and one nuclear gene.
Franco concludes, «Most researchers assume that molecular markers that show variability across species, such as in a phylogenetic study, are potential candidates to perform population - level studies.
Previously, more species in the tropics led to the assumption that temperate, migratory species are derived from tropical, nonmigratory ancestors; however, the results of our phylogenetic study suggest that the opposite pattern happened often in this group.»
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 American Naturalist editors have selected, for the 2016 Student Paper Award, «Diet Evolution and Clade Richness in Hexapoda: a Phylogenetic Study of Higher Taxa,» by James Rainford (student) and Peter Mayhew of University of York, England.
The scale and scope of these data are enabling genotype - phenotype association studies to identify genetic determinants of pathogen virulence and drug / insecticide resistance, and phylogenetic studies to track the origin and spread of disease outbreaks.
I will collect tissue sam ¬ ples for phylogenetic studies, I will collect cells for San Diego Zoo's Frozen Zoo initiative (perhaps one day it can be cloned?)
Currently, five orders, 21 families, and about 510 genera (115 with an uncertain position) are accepted in the Leotiomycetes on the basis of both traditional classification and molecular phylogenetic studies (Eriksson 2005, Kirk et al. 2001, Hibbett et al. 2007).
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