United States of America (USA)

1 December 2019 - 30 November 2020

Subject/journal group: All

The table to the right includes counts of all research outputs for United States of America (USA) published between 1 December 2019 - 30 November 2020 which are tracked by the Nature Index.

Hover over the donut graph to view the FC output for each subject. Below, the same research outputs are grouped by subject. Click on the subject to drill-down into a list of articles organized by journal, and then by title.

Note: Articles may be assigned to more than one subject area.

Count Share
28986 20575.61

Outputs by subject (FC)

Subject Count Share
Life Sciences 12951 9608.83
113 68.86
92 74.32
263 209.84
286 222.26
98 73.98
93 64.78
102 81.37
1 1
290 206.53
119 97.31
70 44.50
1 0.44
72 61.25
98 69.18
88 68.97
789 660.54
139 109.68
370 282.30
123 83.23
416 350.22
180 140.73
162 112.95
477 328.90
99 78.77
72 51.49
109 84.90
2186 1421.72
92 55.28
1 0.83
78 51.61
153 105.50
74 60.03
108 85.85
81 64.61
213 182.14
156 106.03
284 216.28
1922 1480.98
265 182.56
328 233.82
699 499.53
217 169.33
99 47.48
118 85.79
Diversification of methanogens into hyperalkaline serpentinizing environments through adaptations to minimize oxidant limitation
2020-11-30
1
Marine exhibit genome streamlining and phototrophy-driven niche partitioning
2020-11-23
1
Metabolic versatility of the nitrite-oxidizing bacterium Nitrospira marina and its proteomic response to oxygen-limited conditions
2020-11-23
0.88
Potential virus-mediated nitrogen cycling in oxygen-depleted oceanic waters
2020-11-16
0.75
Plant part and a steep environmental gradient predict plant microbial composition in a tropical watershed
2020-11-13
1
Skin fungal assemblages of bats vary based on susceptibility to white-nose syndrome
2020-11-04
1
Host specificity of microbiome assembly and its fitness effects in phytoplankton
2020-10-23
1
Resource partitioning of phytoplankton metabolites that support bacterial heterotrophy
2020-10-23
1
Mucin-derived O-glycans supplemented to diet mitigate diverse microbiota perturbations
2020-10-21
1
Autotrophic and mixotrophic metabolism of an anammox bacterium revealed by in vivo C and H metabolic network mapping
2020-10-20
0.55
Rainforest-to-pasture conversion stimulates soil methanogenesis across the Brazilian Amazon
2020-10-20
0.64
Experimentally-validated correlation analysis reveals new anaerobic methane oxidation partnerships with consortium-level heterogeneity in diazotrophy
2020-10-15
1
Life-history strategies of soil microbial communities in an arid ecosystem
2020-10-13
1
Combined pigment and metatranscriptomic analysis reveals highly synchronized diel patterns of phenotypic light response across domains in the open oligotrophic ocean
2020-10-08
0.94
Mating type specific transcriptomic response to sex inducing pheromone in the pennate diatom Seminavis robusta
2020-10-07
0.03
Rapid evolution destabilizes species interactions in a fluctuating environment
2020-10-06
0.13
Temporal and spatial dynamics in the apple flower microbiome in the presence of the phytopathogen Erwinia amylovora
2020-10-06
1
Wildland fire as an atmospheric source of viable microbial aerosols and biological ice nucleating particles
2020-10-02
1
Direct interactions with commensal streptococci modify intercellular communication behaviors of
2020-09-30
1
A symbiotic nutrient exchange within the cyanosphere microbiome of the biocrust cyanobacterium,
2020-09-23
1
Independent iron and light limitation in a low-light-adapted from the deep chlorophyll maximum
2020-09-23
1
A network approach to elucidate and prioritize microbial dark matter in microbial communities
2020-09-22
1
Root pathogen diversity and composition varies with climate in undisturbed grasslands, but less so in anthropogenically disturbed grasslands
2020-09-21
1
Linking microbial degradation and acetate mineralization in acidic peat bogs: from global insights to a genome-centric case study
2020-09-19
1
Benchmarking microbial growth rate predictions from metagenomes
2020-09-16
1
Experimental evolution reveals nitrate tolerance mechanisms in Desulfovibrio vulgaris
2020-09-15
0.57
Frequency of mispackaging of DNA by cyanophage
2020-09-14
1
Proteome specialization of anaerobic fungi during ruminal degradation of recalcitrant plant fiber
2020-09-14
0.75
A single-cell polony method reveals low levels of infected in oligotrophic waters despite high cyanophage abundances
2020-09-11
0.36
Intriguing size distribution of the uncultured and globally widespread marine non-cyanobacterial diazotroph Gamma-A
2020-09-11
1
Microbial interactions in the mosquito gut determine Serratia colonization and blood-feeding propensity
2020-09-07
0.71
Activity-based cell sorting reveals responses of uncultured archaea and bacteria to substrate amendment
2020-09-04
1
Environmental stability impacts the differential sensitivity of marine microbiomes to increases in temperature and acidity
2020-09-04
1
To hunt or to rest: prey depletion induces a novel starvation survival strategy in bacterial predators
2020-09-03
0.14
A 500-year tale of co-evolution, adaptation, and virulence: Helicobacter pylori in the Americas
2020-09-02
0.11
Microbial carrying capacity and carbon biomass of plastic marine debris
2020-09-02
0.58
The saccharibacterium TM7x elicits differential responses across its host range
2020-08-24
1
Gammaproteobacteria mediating utilization of methyl-, sulfur- and petroleum organic compounds in deep ocean hydrothermal plumes
2020-08-20
0.59
A cosmopolitan fungal pathogen of dicots adopts an endophytic lifestyle on cereal crops and protects them from major fungal diseases
2020-08-19
0.08
Bidirectional C and N transfer and a potential role for sulfur in an epiphytic diazotrophic mutualism
2020-08-19
0.67
Presence of toxin-antitoxin systems in picocyanobacteria and their ecological implications
2020-08-19
1
Viral elements and their potential influence on microbial processes along the permanently stratified Cariaco Basin redoxcline
2020-08-14
1
Enhanced nutrient uptake is sufficient to drive emergent cross-feeding between bacteria in a synthetic community
2020-08-12
1
Unique inducible filamentous motility identified in pathogenic group species
2020-08-07
0.42
Versatile cyanobacteria control the timing and extent of sulfide production in a Proterozoic analog microbial mat
2020-08-07
0.10
Multi-omic meta-analysis identifies functional signatures of airway microbiome in chronic obstructive pulmonary disease
2020-07-27
0.22
Intracellular symbionts drive sex ratio in the whitefly by facilitating fertilization and provisioning of B vitamins
2020-07-20
0.10
Groundwater Elusimicrobia are metabolically diverse compared to gut microbiome Elusimicrobia and some have a novel nitrogenase paralog
2020-07-17
0.78
Predicting disease occurrence with high accuracy based on soil macroecological patterns of Fusarium wilt
2020-07-17
0.29
Insights into the dynamics between viruses and their hosts in a hot spring microbial mat
2020-07-13
0.94
Alternative strategies of nutrient acquisition and energy conservation map to the biogeography of marine ammonia-oxidizing archaea
2020-07-07
0.46
Coprophagy prevention alters microbiome, metabolism, neurochemistry, and cognitive behavior in a small mammal
2020-07-06
0.17
Physiological dynamics of chemosynthetic symbionts in hydrothermal vent snails
2020-07-02
1
New insights into the distributions of nitrogen fixation and diazotrophs revealed by high-resolution sensing and sampling methods
2020-06-24
0.23
Rapid diversification of wild social groups driven by toxin-immunity loci on mobile genetic elements
2020-06-22
1
Dissimilarity–Overlap analysis of replicate enrichment communities
2020-06-18
1
Unusual marine cyanobacteria/haptophyte symbiosis relies on N2 fixation even in N-rich environments
2020-06-10
1
Genome and sequence determinants governing the expression of horizontally acquired DNA in bacteria
2020-06-08
1
Ecological succession in the vaginal microbiota during pregnancy and birth
2020-06-02
0.15
Potential utilization of terrestrially derived dissolved organic matter by aquatic microbial communities in saline lakes
2020-06-01
0.28
Drought and plant litter chemistry alter microbial gene expression and metabolite production
2020-05-22
0.94
Earlier parasite arrival reduces the repeatability of host adaptive radiation
2020-05-22
0.80
Linking perturbations to temporal changes in diversity, stability, and compositions of neonatal calf gut microbiota: prediction of diarrhea
2020-05-22
0.19
A phylogenetically novel cyanobacterium most closely related to Gloeobacter
2020-05-18
0.78
Metagenome-assembled genomes reveal unique metabolic adaptations of a basal marine Thaumarchaeota lineage
2020-05-13
1
Genome diversification in globally distributed novel marine Proteobacteria is linked to environmental adaptation
2020-05-11
1
Selective carbon sources influence the end products of microbial nitrate respiration
2020-05-05
1
Hitchhiking, collapse, and contingency in phage infections of migrating bacterial populations
2020-05-01
0.83
Syntrophic splitting of central carbon metabolism in host cells bearing functionally different symbiotic bacteria
2020-04-29
0.86
Allelic polymorphism shapes community function in evolving populations
2020-04-27
0.71
Dark septate endophyte improves salt tolerance of native and invasive lineages of
2020-04-27
1
Island biogeography of soil bacteria and fungi: similar patterns, but different mechanisms
2020-04-27
0.43
Soil bacterial populations are shaped by recombination and gene-specific selection across a grassland meadow
2020-04-23
1
Host-microbiota interaction helps to explain the bottom-up effects of climate change on a small rodent species
2020-04-20
0.11
Sequence variant analysis reveals poor correlations in microbial taxonomic abundance between humans and mice after gnotobiotic transfer
2020-04-20
0.97
Characterization of viruses in a tapeworm: phylogenetic position, vertical transmission, and transmission to the parasitized host
2020-04-14
0.63
Narnaviruses: novel players in fungal–bacterial symbioses
2020-04-09
0.18
Genetically similar temperate phages form coalitions with their shared host that lead to niche-specific fitness effects
2020-04-02
0.83
A role for gut microbiota in host niche differentiation
2020-04-01
0.50
Small phytoplankton dominate western North Atlantic biomass
2020-03-30
0.91
Targeted assemblies of suggest CRISPR-Cas’s response to soil warming
2020-03-27
0.78
US nativity and dietary acculturation impact the gut microbiome in a diverse US population
2020-03-24
1
Microbial symbionts and ecological divergence of Caribbean sponges: A new perspective on an ancient association
2020-03-20
0.75
The microbiome and resistome of chimpanzees, gorillas, and humans across host lifestyle and geography
2020-03-20
0.92
Lipid analysis of CO-rich subsurface aquifers suggests an autotrophy-based deep biosphere with lysolipids enriched in CPR bacteria
2020-03-13
0.46
Taxon-specific microbial growth and mortality patterns reveal distinct temporal population responses to rewetting in a California grassland soil
2020-03-12
1
Oxygen isotope effects during microbial sulfate reduction: applications to sediment cell abundances
2020-03-09
0.86
A phylogenetic model for the recruitment of species into microbial communities and application to studies of the human microbiome
2020-02-19
1
Plant communities mediate the interactive effects of invasion and drought on soil microbial communities
2020-02-19
0.60
Symbiont replacements reset the co-evolutionary relationship between insects and their heritable bacteria
2020-02-19
1
Metabolic potentials of archaeal lineages resolved from metagenomes of deep Costa Rica sediments
2020-02-17
1
Phylogenomic analysis of novel Diaforarchaea is consistent with sulfite but not sulfate reduction in volcanic environments on early Earth
2020-02-17
1
Double-stranded DNA virioplankton dynamics and reproductive strategies in the oligotrophic open ocean water column
2020-02-14
1
Active sulfur cycling in the terrestrial deep subsurface
2020-02-11
0.33
Role of glucosyltransferase R in biofilm interactions between Streptococcus oralis and Candida albicans
2020-02-10
0.85
Identification of a parasitic symbiosis between respiratory metabolisms in the biogeochemical chlorine cycle
2020-02-05
1
Insights into the bioavailability of oceanic dissolved Fe from phytoplankton uptake kinetics
2020-02-05
0.50
Synergism between and reveals new interactions between oral commensals
2020-02-04
0.83
The gut microbiota response to helminth infection depends on host sex and genotype
2020-01-31
0.72
Iron competition triggers antibiotic biosynthesis in during coculture with
2020-01-28
0.07
Anaerobic methane oxidation coupled to manganese reduction by members of the
2020-01-27
0.13
Lipids and small metabolites provisioned by ambrosia fungi to symbiotic beetles are phylogeny-dependent, not convergent
2020-01-27
0.83
Pyruvate secretion by oral streptococci modulates hydrogen peroxide dependent antagonism
2020-01-27
1
Evidence for auxiliary anaerobic metabolism in obligately aerobic
2020-01-22
1
Niche differentiation is spatially and temporally regulated in the rhizosphere
2020-01-17
0.98
Controlled sampling of ribosomally active protistan diversity in sediment-surface layers identifies putative players in the marine carbon sink
2020-01-09
0.29
Evidence for phylogenetically and catabolically diverse active diazotrophs in deep-sea sediment
2020-01-06
1
Mineralization versus fermentation: evidence for two distinct anaerobic bacterial degradation pathways for dichloromethane
2020-01-06
1
Divergent symbiont communities determine the physiology and nutrition of a reef coral across a light-availability gradient
2020-01-03
1
Mountain biodiversity and ecosystem functions: interplay between geology and contemporary environments
2020-01-02
0.08
Organohalide-respiring species isolated from marine environments
2020-01-02
0.14
Phage-specific metabolic reprogramming of virocells
2020-01-02
1
Syntrophus conductive pili demonstrate that common hydrogen-donating syntrophs can have a direct electron transfer option
2020-01-02
0.95
Correction: Cultivation and genomics of the first freshwater SAR11 (LD12) isolate
2019-12-13
1
Long-term nutrient inputs shift soil microbial functional profiles of phosphorus cycling in diverse agroecosystems
2019-12-11
0.08
Minimal fermentative metabolism fuels extracellular symbiont in a leaf beetle
2019-12-03
0.17
Novel copper-containing membrane monooxygenases (CuMMOs) encoded by alkane-utilizing
2019-12-03
0.17
Coordinated transformation of the gut microbiome and lipidome of bowhead whales provides novel insights into digestion
2019-12-02
1
71 40.81
1084 890.33
Earth & Environmental Sciences 4341 2853.57
Chemistry 7235 5250.77
Physical Sciences 8259 5364.59

1 December 2019 - 30 November 2020

View the connected world of international research collaboration. Visualize collaborations by subject or region.

Collaborations between countries

Percentage of collaboration by Share

Hover over the graph to view the percentage of collaboration.

Top 10 collaborators by Share

  • United States of America (USA)
  1. China (4420.77)
    2106.75
    2314.03
  2. 1144.34
    831.17
  3. Germany (1914.97)
    1082.34
    832.63
  4. Canada (1205.80)
    753.10
    452.71
  5. France (1078.91)
    656.65
    422.26
  6. Japan (974.94)
    598.68
    376.26
  7. Australia (712.66)
    427.56
    285.10
  8. Switzerland (698.47)
    414.10
    284.37
  9. South Korea (697.43)
    420.77
    276.66
  10. Italy (582.81)
    354.79
    228.01

Collaboration is determined by the combined fractional count (Share) of United States of America (USA) and the collaborating country.

Top 10 institutions from United States of America (USA)

Institution Count Share
1. Harvard University 2535 914
2. Stanford University 1694 647.18
3. Massachusetts Institute of Technology (MIT) 1828 528.46
4. National Institutes of Health (NIH) 1085 404.29
5. University of California, Berkeley (UC Berkeley) 1297 395.84
6. University of Michigan (U-M) 1010 391.33
7. Yale University 987 350.79
8. University of California, San Diego (UC San Diego) 1003 342.66
9. Columbia University in the City of New York (CU) 1027 327.89
10. University of California, Los Angeles (UCLA) 1114 327.29

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