The pathogen likely originated and remained in coexistence
with a clade of salamander hosts for millions of years in Asia.
As the climate warmed during the Holocene, and suitable habitat expanded northward, gray fox population ranges shifted further north resulting in foxes
with clade A haplotypes distributed as far north as Shasta County in northern California (Fig. 1).
Glacial climatic fluctuations caused habitat changes, including the appearance of continental ice sheets as far south as Washington State [37], that may have caused range shifts in locally adapted gray fox populations, with foxes
with clade B haplotypes existing as far south as southern California.
There is now a clear lineage leading from non-avian dinosaurs to birds, starting
with the clade of dinosaurs called Maniraptora («hand snatchers»).
Phylogenetic tree reconstructions showed two distinct clades existing within the 1a subtype
with each clade having a star - like tree topology and lacking definite correlation between time or place of isolation and phylogeny.
A PCR fragment containing full - length env and rev genes was derived from plasma virion - associated RNA from a subject infected
with a clade B virus by reverse transcription and nested PCR amplification procedures.
Under controlled conditions, Acropora millepora corals
with clade D symbionts grow 29 % slower than those
with clade C2 symbionts.
A PCR fragment containing full - length env and rev genes was derived from plasma virion - associated RNA from a subject acutely infected
with a clade B virus by reverse transcription and nested PCR amplification.
Genome sequencing also revealed that MRSA clades were dynamic in the ICU over the three - month period,
with some clades more prevalent early in the study and others later.
Not exact matches
However, what is more likely is that Coutinho will start of the left of the front attacking three
with Emre Can filling in the midfield role, ahead of fresh signing Alex
Clade - Chamberlain who will be used more as a utility player than anything else in Europe.
In fact, their taxonomic analysis displaces it from its alleged perch on the phylogenetic tree: «The Haarlem specimen is not a member of the Archaeopteryx
clade,» says Rauhut, a paleontologist in the Department of Earth and Environmental Sciences at LMU who is also affiliated
with the Bavarian State Collections for Paleontology and Geology in Munich.
Most of the S. aureus found in monkeys were part of a
clade, a group
with common ancestors, which appeared to have resulted from a human - to - monkey transmission event that occurred 2,700 years ago.
Speciation had taken place four times as fast in
clades where females mated
with many males, his team reports in the 12 September Proceedings of the National Academy of Sciences.
This evidence indicates that LB1 is not a modern human
with an undiagnosed pathology or growth defect; rather, it represents a species descended from a hominin ancestor that branched off before the origin of the
clade that includes modern humans, Neandertals, and their last common ancestor.
This discovery challenges the fundamentals of echinoderm evolution
with respect to end - Permian survival and sheds new light on the early evolution of the modern
clades, in particular on Triassic ghost lineages of the crown - group look - alikes of the Paleozoic hangovers.
The researchers also discovered that the
clade asterid — which potatoes belong to along
with tomatoes, coffee, and tobacco — likely split off from rosids (grapes, poplar trees, geraniums, etc.) around 89 million years ago.
With this technique, known as sister - clade comparision, evolutionary scientists look at groups of species that have common ancestry and age, known as sister clades, comparing the number of species with a particular behavior to the number with
With this technique, known as sister -
clade comparision, evolutionary scientists look at groups of species that have common ancestry and age, known as sister
clades, comparing the number of species
with a particular behavior to the number with
with a particular behavior to the number without.
A landmark genomic study,
with contributors from over two - dozen countries, shows the current problem of antibiotic resistant typhoid is driven by a single
clade, family of typhoid bacteria, called H58 that has now spread globally.
Habitual bipedal locomotion is a defining feature of modern humans compared
with other primates, and the evolution of this behaviour in our
clade would have had profound effects on the biologies of our fossil ancestors and relatives.
This included a strongly supported
clade (100 % BS on most branches) that comprised the three groups of vocal learners (parrots, songbirds, and hummingbirds) and most of the nonpredatory core landbirds, a monophyletic
clade of diurnal birds of prey and seriemas (albeit
with low 40 % BS), and a monophyletic
clade of all aquatic and semiaquatic species of Passerea and Columbea (also
with low 20 % BS)(Fig. 4D).
Results for different genomic partitions, methods, and data types are consistent
with or contradict
clades in our TENT ExaML, TENT MP - EST *, and exon - only trees and previous studies of morphology (15), DNA - DNA hybridization (24), mitochondrial genes (14), and nuclear genes (17).
Within core landbirds, we found 100 % BS for a previously more weakly supported
clade (Australaves) containing seriemas (historically placed in Gruiformes), falcons (historically grouped
with other diurnal birds of prey), parrots (historically difficult to place), and Passeriformes and a sister
clade (Afroaves) containing Accipitrimorphae birds of prey, owls, mousebirds, woodpeckers, and bee eaters, among others (Fig. 1)(8, 17, 26, 29, 60).
Although some of the findings of the initial multigene studies (8, 17) have since been corroborated
with larger sequence (26 — 28) or transposable element (TE) insertion data sets (29), other proposed
clades were not supported (27, 28).
This third
clade appears to have evolved starting
with a single mutation in the genetic catalog, or genome, of the virus, said Stephen Gire of Harvard University and the Broad Institute in Cambridge, Mass..
It further shows that some docodontans had a diet
with a substantial herbivorous component, distinctive from the faunivorous diets previously reported in other members of this
clade.
The names of subclades and lineages defined for the Arctic - related, Asian and Cosmopolitan
clades are detailed in S1 Table,
with corresponding bootstrap values shown for major nodes.
With restricted distributions, serious conservation threats, and relatively low taxonomic richness compared with other odontocete clades, the evolutionary history of «river dolphins» remains a topic of perennial interest (Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; Pyenson, 2009; Ruiz - Garcia & Shostell, 2010; Turvey et al., 2010; Geisler et al., 20
With restricted distributions, serious conservation threats, and relatively low taxonomic richness compared
with other odontocete clades, the evolutionary history of «river dolphins» remains a topic of perennial interest (Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; Pyenson, 2009; Ruiz - Garcia & Shostell, 2010; Turvey et al., 2010; Geisler et al., 20
with other odontocete
clades, the evolutionary history of «river dolphins» remains a topic of perennial interest (Cassens et al., 2000; Hamilton et al., 2001; Nikaido et al., 2001; Pyenson, 2009; Ruiz - Garcia & Shostell, 2010; Turvey et al., 2010; Geisler et al., 2011).
The inclusion of 24 additional
clade C samples19 in the phylogenetic analysis reveals the expected C1 and C2 split (100 % support) and that HXH, CTC, NGD and the Kartstein Cave dog share a common lineage
with C1 dogs (Supplementary Fig. 8).
A review of the paleontological literature suggests that, in spite of the fact that homoplasy is rampant among mammalian
clades with respect to the development of the hypocone, only among the notharctines do we find an alternative name for this cusp.
We examined the phylogenetic relationship of the entire mitochondrial genomes of HXH and CTC
with a comprehensive panel of modern dogs across four major
clades (A — D), modern wolves and coyotes, and previously reported ancient wolf - like and dog - like whole mitochondrial sequences5, 12.
In combination
with an age of 315 ± 34 thousand years (as determined by thermoluminescence dating) 3, this evidence makes Jebel Irhoud the oldest and richest African Middle Stone Age hominin site that documents early stages of the H. sapiens
clade in which key features of modern morphology were established.
Thus, regional / species specific variation in DNA gain and loss are primarily driven by
clade specific / recent transposons interacting
with open chromatin either in the male germ line, female germ line or early embryo.
Genetic changes found in a distinct
clade of Enterovirus D68 associated
with paralysis during the 2014 outbreak.
The ability to associate
with multiple zooxanthellae
clades is common in corals.
A landmark genomic study,
with contributors from over two - dozen countries, shows the current problem of antibiotic resistant typhoid is driven by a single
clade, family of bacteria, called H58 that has now spread globally.
In the short term, corals
with flexible symbioses may shuffle or switch zooxanthellae; and an increase in the abundance of thermally tolerant zooxanthellae strains (such as those of
clade D) is expected
with an increasing frequency of bleaching conditions.
The env gene (complete gp160) of 10 viruses representative of the five primary
clades A to E1 was amplified by PCR from viral RNA using specific primers, digested
with XbaI and NotI and inserted in the same sites in the pNL - lacZ / env - Ren 2
with the resultin
Clade D Symbiodinium are present in higher abundances on some reefs than others, and these are often reefs exposed to relatively high levels of thermal stress or local stressors (e.g., sedimentation on reefs)
with a history of coral bleaching.
Some
clades have a similar structure to MSP3,
with specific expansions.
While this view has been changing for some time, a revolution in our thinking came
with the discovery of Lokiarchaeum («Loki») and other members of the «Asgard»
clade of archaea through metagenomic sampling of ocean sediments in 2015.
bilaterians: A
clade of animals whode members share: bilateral symmetry, are triploblastic (three tissue layers: ectoderm, mesoderm, endoderm), and
with HOX genes in one or more clusters
with the genes within a cluster arranged in the same order as the body parts they affect.
Maximum likelihood estimates for the TMRCA of each
clade (x axis
with the unit of kya), providing upper boundaries for population split times, were obtained using r8s.
Meredith et al.'s [22] younger dates for these
clades may reflect the difficulties of timetree analyses for
clades such as Mammalia that include taxa
with a wide range of life history characters (e.g., baleen whales versus muroid rodents) and a correspondingly wide range of molecular evolutionary rates.
Our analyses support the grouping of placozoans, cnidarians and bilaterians into a eumetazoan
clade,
with demosponges as an earlier - branching lineage25, and reject the diploblast — triploblast phylogeny17 in favour of a more conventional «sponges first» tree19, 20 (Fig. 1d).
Individuals
with APOE 3 — TOMM40
clade A haplotypes had a mean AAO of 73.31 years vs 72.93 years for APOE 3 — TOMM40
clade B. Thus, in this much larger study (total cases = 1594, total controls = 1190; total APOE 33 cases = 474, total APOE 33 controls = 701) than the original study (N = 34), we found a trend toward association but in the opposite direction than previously reported.
All
clades are supported
with a posterior probability of 1.
Consistent
with being the most ancient member of the DAZ family, the Boule
clade is much more widespread and divergent, including members of the major phyla of protostomes and deuterostomes, while all DAZ / DAZL homologs are clustered together in one branch.
This project produced data demonstrating that 185 CHIKV sequences associated
with the 2014 Caribbean outbreak segregate into 2 well - supported
clades, that multiple phylogenetic subclades are associated
with clinical phenotypes, and that multiple international transmission events were observed.
Identification of significant phylogenetically informative sites at the nucleotide level revealed positions not only contributing to
clade differentiation, but which are located at or proximal to codons associated
with resistance to protease inhibitors (NS3 Q41) or polymerase inhibitors (NS5B S368).
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).