Sentences with phrase «clade a»

that the species at face value remains alive for some time after the extinction threshold is crossed, but becomes in effect a «dead clade walking» (Jablonski, 2001).

Many earlier acclimation studies simply identified a symbiont's clade.

But we now know each clade can harbor hundreds of types (potential species) and improved detection of those species is uncovering more shifting.

S. L. Page and Morris Goodman, «Catarrhine phylogeny: Noncoding DNA evidence for a diphyletic origin of the mangabeys and for a human - chimpanzee clade,» Molecular Phylogenetics and Evolution 18 (1): 14 - 25 (January 2001).

When we talk about extinction we're referring to a dying off of a clade; consequently, the examples on butterflies and frogs migrations not necessarily are due to climate changes.

In the clade of red - light bioluminescent fishes (coined EPL clade), there are three species who have reverted back to the ancestral state of only using blue - light bioluminescence by the substitution at sites 253 and 292.

Genomic analyses of the rod opsin - coding gene by Kenaley et al. (2014) suggests enhanced perception of red wavelengths evolved once in a clade involving three genera: Aristomias, Malacosteus, and Pachystomias, all of which are capable of producing red - light bioluminescence.

The results imply that the Hula painted frog is not merely another rare species of frog, but is actually the sole representative of an ancient clade of frogs (a group with a single common ancestor).

According to the Angiosperm Phylogeny Group (APG), the Brazil nut family belongs to the order Ericales which is basal to the euasterid clade.

The pathogen likely originated and remained in coexistence with a clade of salamander hosts for millions of years in Asia.

Preview: Clade Launches Its Inaugural Online Members - Only Art Exhibition, Featuring Nate Lowman In Collaboration With Maccarone Gallery

Parapoxviruses of seals and sea lions make up a distinct clade within the genus Parapoxvirus.

Remarkably, island fox haplotypes formed a monophyletic clade nested within clade B, rather than with foxes from southern California, closest to the Channel Islands.

However, the fact that we detected only 13 — 14 base pair substitutions between the closest mainland gray fox lineage and the northern / southern island fox ancestor suggests that the date of divergence for the island fox clade could be more recent than 9200 years ago.

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.

Our divergence date estimates for the island fox clade itself, ~ 9200 years ago, as Santarosae separated into four distinct islands and for the southern island fox lineage, ~ 7100 years ago, correspond well with the earliest AMS dated island fox bones (~ 7100 cal BP for northern and ~ 5640 cal BP for the southern islands).

Haplotypes in clade A included all individuals sampled in southern California, plus some haplotypes from northern California.

[13][14] But other recent studies place gray whales as being outside the rorqual clade, but as the closest relatives to the rorquals.

It is the largest member of the clade Pinnipedia and the order Carnivora, as well as the largest marine mammal that is not a cetacean.

The vaccine might not be effective at all against the Clade that is most common in certain regions.

«Thank you so much for the great job you did on my book trailer âThe Clade Letters, by Cosette Riggsâ Someone told me that they wanted to buy my book and when they saw the trailer they said the trailer made them really want to buy it.

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SARSr - CoVs detected in southeastern, central and northern provinces, such as Hong Kong, Hubei and Shaanxi, formed the other clade which was phylogenetically distant to human and civet SARS - CoVs (Fig 6 and S6 Fig).

Regardless of different host bat species, SARS - CoV and SARSr - CoVs detected in bats from southwestern China (Yunnan, Guizhou and Guangxi province) formed one clade, in which SARSr - CoV strains showing closer relationship to SARS - CoV were all from Yunnan.

For example, Bayesian branch - support values as used by Murphy et al. [2] should not be interpreted as probabilities that a tree - topology is correct and are known to overestimate the degree of clade support [14].

«Our study highlights how, despite decades of paleontology research, new fossil discoveries and new ways of analyzing those fossils can still fundamentally impact how we view something as central to us as the evolution of our own clade, mammals,» Dr. Wilson said.

The vaccine, designed for testing in Thailand where clade B and recombinant E / A HIV predominates, was found 31 % effective in preventing HIV infection among Thai volunteers.

also displays features consistent with filter feeding, and extends the range of this large - bodied pachycormid clade from the Late Jurassic to the Late Cretaceous.

These dynamics are the basis for models that predict the evolution of clade frequencies, as well as broad genetic and phenotypic changes.

In contrast, when we use Kent, it forms a clade with the Dutch population (Fig. 3d), consistent with higher Anglo - Saxon ancestry in the South of England than in Cornwall.

Prevalence of serotypes was stable prior to vaccination although there was an increase in the PMEN19 clone, serotype 5 ST289, in clade SC1 in 2010 suggesting a potential undetected local outbreak.

Anoles are a clade of iguanian lizards that underwent an extensive radiation between 125 and 65 million years ago.

Haplogroup P2b was identified as a novel clade potentially restricted to Torres Strait Islanders.

Results: Phylogenetic analysis of 77 K. pneumoniae (48 clinical and 29 non-clinical isolates) demonstrated that the two groups were intermixed throughout the tree and in some cases resided in the same clade, suggesting recent divergence from a common ancestor.

Within the major clade, seven further phylogenetic groups can be identified, demonstrating geographical associations.

These effects are observed across the entire mammalian clade and are robust to potential confounders, such as the gene expression level.

With the discovery of Asgard» clade archaea, the homologs of key eukaryote cytoskeletal proteins have, for the first time, been identified in archaea.

Intriguingly, this clade also comprised epidemiologically unrelated isolate sequences from the UK and Denmark dating back as early as 2011.

A single putative - outbreak ST82 isolate sequence segregated in the first clade.

hco - miR - 9551 is enriched in female worms, is likely to be located on the X chromosome and is restricted to clade V parasitic nematodes.

There is now a clear lineage leading from non-avian dinosaurs to birds, starting with the clade of dinosaurs called Maniraptora («hand snatchers»).

Association of APOE 3 — TOMM40 clade A and B haplotypes with case - control status was performed using a Fisher exact test.

We also aim to explore the relationship between the species richness of a clade and the developmental properties of the taxa.

Members of Theropoda, the only clade of predominantly predatory dinosaurs, were successful predators partly due to a unique, deeply serrated tooth structure...

Ichnological evidence suggests that dinosauromorphs originated by the Early Triassic, and skeletal remains of non-dinosaur representatives of the clade occur from the Anisian to the end of the Triassic.

Among the most abundant bacteria is this community was a member of the OPB56 clade, an enigmatic, deep - branching lineage in the Chlorobi phylum.

Members of Theropoda, the only clade of predominantly predatory dinosaurs, were successful predators partly due to a unique, deeply serrated tooth structure that allowed them to easily tear through the flesh and bone of other dinosaurs, according to a new study published in the journal Scientific Reports.

In our discussion below we therefore refer to descendants of the placozoan — cnidarian — bilaterian last common ancestor as Eumetazoa, and reserve «Eumetazoa sensu stricto» for the more limited clade defined by descendants of the cnidarian — bilaterian ancestor.

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).