Results 51 to 60 of about 13,028,141 (393)

Optimization of quantitative polymerase chain reactions for detection and quantification of eight periodontal bacterial pathogens [PDF]

open access: yes, 2012
BACKGROUND: The aim of this study was to optimize quantitative (real-time) polymerase chain reaction (qPCR) assays for 8 major periodontal pathogens, i.e.
Cosyn, Jan   +8 more
core   +1 more source

Genomic Signatures of Influenza A Pandemic (H1N1) 2009 Virus

open access: yesEmerging Infectious Diseases, 2009
Adaptive mutations that have contributed to the emergence of influenza A pandemic (H1N1) 2009 virus, which can replicate and transmit among humans, remain unknown.
Guang-Wu Chen, Shin-Ru Shih
doaj   +1 more source

Plant abundance, but not plant evolutionary history, shapes patterns of host specificity in foliar fungal endophytes

open access: yesEcosphere, 2022
Understanding the origins and maintenance of host specificity, or why horizontally‐acquired symbionts associate with some hosts but not others, remains elusive.
Austen Apigo, Ryoko Oono
doaj   +1 more source

Specialization of neural mechanisms underlying face recognition in human infants [PDF]

open access: yes, 2002
Newborn infants respond preferentially to simple face-like patterns, raising the possibility that the face-specific region, identified in the adult cortex are functioning from birth. We sought to evaluate this hypothesis by characterizing the specificity
de Haan, M, Johnson, MH, Pascalis, O
core   +2 more sources

Species-Specific Marker Discovery in Tilapia [PDF]

open access: yesScientific Reports, 2019
AbstractTilapias (family Cichlidae) are of importance in aquaculture and fisheries. Hybridisation and introgression are common within tilapia genera but are difficult to analyse due to limited numbers of species-specific genetic markers. We tested the potential of double digested restriction-site associated DNA (ddRAD) sequencing for discovering single
Stefanie Wehner   +15 more
openaire   +6 more sources

Further Characterization of the Antiviral Transmembrane Protein MARCH8

open access: yesCells
The cellular transmembrane protein MARCH8 impedes the incorporation of various viral envelope glycoproteins, such as the HIV-1 envelope glycoprotein (Env) and vesicular stomatitis virus G-glycoprotein (VSV-G), into virions by downregulating them from the
Takuya Tada   +8 more
doaj   +1 more source

Divergence of Fecal Microbiota and Their Associations With Host Phylogeny in Cervinae

open access: yesFrontiers in Microbiology, 2018
Gastrointestinal microbiota may shape the adaptation of their hosts to different habitats and lifestyles, thereby driving their evolutionary diversification.
Jiaying Li   +6 more
doaj   +1 more source

Symbiotic Culture of Three Closely Related Dendrobium Species Reveals a Growth Bottleneck and Differences in Mycorrhizal Specificity at Early Developmental Stages

open access: yesDiversity, 2022
Mycorrhizal specificity, i.e., the range of fungi allowing mycorrhizal partnerships, differs among orchid species, but that at early developmental stages is unclear.
Liyue Zhang   +5 more
doaj   +1 more source

Diverging fluctuations in a spatial five-species cyclic dominance game [PDF]

open access: yesPhysical Review E 88, 022123 (2013), 2013
A five-species predator-prey model is studied on a square lattice where each species has two prey and two predators on the analogy to the Rock-Paper-Scissors-Lizard-Spock game. The evolution of the spatial distribution of species is governed by site exchange and invasion between the neighboring predator-prey pairs, where the cyclic symmetry can be ...
arxiv   +1 more source

A Drosophila female pheromone elicits species-specific long-range attraction via an olfactory channel with dual specificity for sex and food

open access: yesBMC Biology, 2017
Mate finding and recognition in animals evolves during niche adaptation and involves social signals and habitat cues. Drosophila melanogaster and related species are known to be attracted to fermenting fruit for feeding and egg-laying, which poses the ...
Sebastien Lebreton   +13 more
semanticscholar   +1 more source

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