cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.15468/dl.vrvat2
title: Occurrence Download

description: A dataset containing 1330 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "Country is China",
 "Country is Hong Kong",
 "Country is Macao",
 "Country is Chinese Taipei"
 ]
 },
 "HasCoordinate is true",
 "TaxonKey is Rosa omeiensis Rolfe",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 1330 records from 18 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0011325-190918142434337/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.jp2hsk
title: Occurrence Download

description: A dataset containing 7 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Oreophryne hypsiops Zweifel, Menzies & Price, 2003"
 ]
}

 The dataset includes 7 records from 2 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044847-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.dj6csz
title: Occurrence Download

description: A dataset containing 4513 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Macropygia tenuirostris Bonaparte, 1854"
 ]
}

 The dataset includes 4513 records from 16 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032910-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qjvjh7
title: Occurrence Download

description: A dataset containing 19 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Hyperolius schoutedeni Laurent, 1943"
 ]
}

 The dataset includes 19 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044840-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.qqvv5c
title: Occurrence Download

description: A dataset containing 6185 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Mexico",
 "TaxonKey is Cyanocompsa parellina (Bonaparte, 1850)"
 ]
}

 The dataset includes 6185 records from 63 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010084-170826194755519/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.f64u8x
title: Occurrence Download

description: A dataset containing 9 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Elatostema subincisum Wedd."
 ]
}

 The dataset includes 9 records from 5 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032922-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.aurwdw
title: Occurrence Download

description: A dataset containing 65 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Callistephanus spauldingi (Nutting, 1909)",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 {
 "not" : {
 "BasisOfRecord" : [
 "is Fossil"
 ]
 }
 },
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is MANAGED"
 ]
 }
 },
 {
 "not" : {
 "EstablishmentMeans" : [
 "is not null"
 ]
 }
 }
 ]
 },
 {
 "or" : [
 "OccurrenceStatus is Present",
 {
 "not" : {
 "OccurrenceStatus" : [
 "is not null"
 ]
 }
 }
 ]
 }
 ]
}

 The dataset includes 65 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044848-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.9a5y2v
title: Occurrence Download

description: A dataset containing 90 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Doona zeylanica Thwaites"
 ]
}

 The dataset includes 90 records from 19 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032933-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.d2w6gn
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Dyaphorophyia hormophora Reichenow, 1901",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0000088-240321170329656/datasets/export for details.
DOI: 10.15468/dl.kllrbu
title: Occurrence Download

description: A dataset containing 243 species occurrences available in GBIF matching the query:
{
 "DatasetKey" : [
 "is (Table 3) Distribution of planktonic foraminifera in the larger size fraction of ODP Hole 120-749B"
 ]
}

 The dataset includes 243 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010085-160623103540712/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.7r5vmg
title: Occurrence Download

description: A dataset containing 6782 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Glandirana rugosa (Temminck & Schlegel, 1838)"
 ]
}

 The dataset includes 6782 records from 72 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032977-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.zn46j2
title: Occurrence Download

description: A dataset containing 4403 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "or" : [
 "PublishingCountry is Colombia",
 {
 "and" : [
 "Country is Colombia",
 {
 "not" : {
 "Issue" : [
 "is Country coordinate mismatch"
 ]
 }
 }
 ]
 }
 ]
 },
 {
 "and" : [
 "Country is one of (Colombia)",
 "GadmGid is one of (COL.2.68_2)",
 {
 "or" : [
 "StateProvince ~Antioquia",
 "StateProvince is antioquia"
 ]
 }
 ]
 }
 ]
}

 The dataset includes 4403 records from 35 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044892-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.decwqx
title: Occurrence Download

description: A dataset containing 2913321 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Country is Colombia",
 "TaxonKey is Plantae"
 ]
}

 The dataset includes 2913321 records from 411 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010085-170826194755519/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.u4ugke
title: Occurrence Download

description: A dataset containing 3337 species occurrences available in GBIF matching the query:
{
 "and" : [
 {
 "and" : [
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 "OccurrenceStatus is Present",
 {
 "not" : {
 "BasisOfRecord" : [
 "is one of (Fossil, Living Specimen)"
 ]
 }
 }
 ]
 },
 "TaxonKey is Crypturellus strigulosus (Temminck, 1815)"
 ]
}

 The dataset includes 3337 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0032943-240314170635999/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.p2xfjn
title: Occurrence Download

description: A dataset containing 83 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is Callochiton gaussi Thiele, 1908",
 "HasGeospatialIssue is false",
 "HasCoordinate is true",
 {
 "not" : {
 "BasisOfRecord" : [
 "is Fossil"
 ]
 }
 },
 {
 "or" : [
 {
 "not" : {
 "EstablishmentMeans" : [
 "is MANAGED"
 ]
 }
 },
 {
 "not" : {
 "EstablishmentMeans" : [
 "is not null"
 ]
 }
 }
 ]
 },
 {
 "or" : [
 "OccurrenceStatus is Present",
 {
 "not" : {
 "OccurrenceStatus" : [
 "is not null"
 ]
 }
 }
 ]
 }
 ]
}

 The dataset includes 83 records from 9 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0044872-240229165702484/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.006ubk
title: Occurrence Download

description: A dataset containing 46 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is Lymania alvimii (L.B.Sm. & Read) Read"
 ]
}

 The dataset includes 46 records from 15 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0010086-151016162008034/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.3azzwy
title: Occurrence Download

description: A dataset containing 2819 species occurrences available in GBIF matching the query:
{
 "and" : [
 "Continent is North America",
 "DatasetKey is iNaturalist Research-grade Observations",
 "HasCoordinate is true",
 "HasGeospatialIssue is false",
 "OccurrenceStatus is Present",
 "TaxonKey is Pandion haliaetus carolinensis (Gmelin, 1788)"
 ]
}

 The dataset includes 2819 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015353-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.15468/dl.m2jn6e
title: Occurrence Download

description: A dataset containing 87 species occurrences available in GBIF matching the query:
{
 "and" : [
 "TaxonKey is one of (Tor tambroides (Bleeker, 1854))",
 "BasisOfRecord is one of (Specimen, Human Observation, Observation, Machine Observation)",
 "HasCoordinate is true",
 "HasGeospatialIssue is false"
 ]
}

 The dataset includes 87 records from 12 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0015354-241107131044228/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.26672517.v1
title: Additional file 1 of Plantar pressure distribution and altered postural control in multibacillary leprosy patients

description: Additional file 1. Datasheet.
DOI: 10.6084/m9.figshare.26672517
title: Additional file 1 of Plantar pressure distribution and altered postural control in multibacillary leprosy patients

description: Additional file 1. Datasheet.
DOI: 10.15468/dl.crsunf
title: Occurrence Download

description: A dataset listing the 67 species recorded in GBIF matching the query:
{
 "and" : [
 "DatasetKey is Colección del Herbario de la Universidad Tecnológica del Chocó",
 "TaxonKey is Piper L."
 ]
}

 The dataset's 67 records were derived from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0067074-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.26672559
title: Additional file 2 of High-fidelity (repeat) consensus sequences from short reads using combined read clustering and assembly

description: Additional file 2. Underlying data from Figs. 2, 3 and 4. Contents: Data-Fig. 2A_B-corolliflora_inputs.tsv, Data-Fig. 2B_B-corolliflora_contigs.tsv, Data-Fig. 2C_B-corolliflora-SCL008.fasta, Data-Fig. 2C_B-corolliflora-SCL008.gff, Data-Fig. 3_B-vulgaris-mini-circles_assembly.gfa, Data-Fig. 4_A-annua-rDNA.gfa, Data-Fig. 4_T-porrifolius-rDNA.gfa.
DOI: 10.6084/m9.figshare.26672559.v1
title: Additional file 2 of High-fidelity (repeat) consensus sequences from short reads using combined read clustering and assembly

description: Additional file 2. Underlying data from Figs. 2, 3 and 4. Contents: Data-Fig. 2A_B-corolliflora_inputs.tsv, Data-Fig. 2B_B-corolliflora_contigs.tsv, Data-Fig. 2C_B-corolliflora-SCL008.fasta, Data-Fig. 2C_B-corolliflora-SCL008.gff, Data-Fig. 3_B-vulgaris-mini-circles_assembly.gfa, Data-Fig. 4_A-annua-rDNA.gfa, Data-Fig. 4_T-porrifolius-rDNA.gfa.
DOI: 10.6084/m9.figshare.26605213
title: Additional file 5 of Single-cell RNA sequencing analysis of the temporomandibular joint condyle in 3 and 4-month-old human embryos

description: Additional file 5.
DOI: 10.34770/s4zx-ab39
title: Data For “Development of a dual channel detection system for pan-genotypic simultaneous quantification of hepatitis B and delta viruses"

description: Hepatitis B virus (HBV) infection remains a major public health problem
 and, in associated co-infection with hepatitis delta virus (HDV), causes
 the most severe viral hepatitis and accelerated liver disease progression.
 As a defective satellite RNA virus, HDV can only propagate in the presence
 of HBV infection, which makes HBV DNA and HDV RNA the standard biomarkers
 for monitoring the virological response upon antiviral therapy, in
 co-infected patients. Although assays have been described to quantify
 these viral nucleic acids in circulation independently, a method for
 monitoring both viruses simultaneously is not available, thus hampering
 characterization of their complex dynamic interactions. Here, we describe
 the development of a dual fluorescence channel detection system for
 pan-genotypic, simultaneous quantification of HBV DNA and HDV RNA through
 a one-step quantitative PCR. The sensitivity for both HBV and HDV is about
 10 copies per microliter without significant interference between these
 two detection targets. This assay provides reliable detection for HBV and
 HDV basic research in vitro and in human liver chimeric mice. Preclinical
 validation of this system on serum samples from patient on or off
 antiviral therapy also illustrates a promising application that is rapid
 and cost-effective in monitoring HBV and HDV viral loads simultaneously.
DOI: 10.15468/dl.5u8y2x
title: Occurrence Download

description: A dataset listing the 1 species recorded in GBIF matching the query:
{
 "and" : [
 "Continent is South America",
 "Country is Colombia",
 "OccurrenceStatus is Present",
 "PublishingOrg is one of (58c7e325-82fc-446d-9406-851b4d357db7, 0e2f2e28-7790-4c82-b8fb-6ef7b4c764e2, bc092ff0-02e4-11dc-991f-b8a03c50a862)",
 "TaxonKey is Vultur gryphus Linnaeus, 1758"
 ]
}

 The dataset's 1 records were derived from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0067067-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.26605222
title: Additional file 1 of Altered gut microbiota–host bile acid metabolism in IBS-D patients with liver depression and spleen deficiency pattern

description: Additional file 1: Table S1. Taxonomic difference among groups at phylum and genus levels.
DOI: 10.6084/m9.figshare.26605222.v1
title: Additional file 1 of Altered gut microbiota–host bile acid metabolism in IBS-D patients with liver depression and spleen deficiency pattern

description: Additional file 1: Table S1. Taxonomic difference among groups at phylum and genus levels.
DOI: 10.15468/dl.agejqw
title: Occurrence Download

description: A dataset containing 1 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "MULTIPOLYGON (((148.881544 -32.591567, 148.881544 -32.598304, 148.88379 -32.598304, 148.88379 -32.596059, 148.888281 -32.596059, 148.888281 -32.591567, 148.881544 -32.591567)), ((148.888281 -32.596059, 148.888281 -32.598304, 148.890527 -32.598304, 148.890527 -32.596059, 148.888281 -32.596059)))"
 ]
}

 The dataset includes 1 records from 1 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0067105-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.26672601.v1
title: Additional file 2 of Integrating multiple lines of evidence to assess the effects of maternal BMI on pregnancy and perinatal outcomes

description: Additional file 2. Supplementary tables.
DOI: 10.6084/m9.figshare.26672601
title: Additional file 2 of Integrating multiple lines of evidence to assess the effects of maternal BMI on pregnancy and perinatal outcomes

description: Additional file 2. Supplementary tables.
DOI: 10.6084/m9.figshare.26672613
title: Additional file 1 of Are we ready for "green surgery" to promote environmental sustainability in the operating room? Results from the WSES STAR investigation

description: Additional file 1. STAR Study Group members.
DOI: 10.6084/m9.figshare.26672613.v1
title: Additional file 1 of Are we ready for "green surgery" to promote environmental sustainability in the operating room? Results from the WSES STAR investigation

description: Additional file 1. STAR Study Group members.
DOI: 10.6084/m9.figshare.26672619
title: Additional file 1 of Anti-hyperalgesic and anti-inflammatory effects of 4R-tobacco cembranoid in a mouse model of inflammatory pain

description: Additional file 1. Raw Data Table.
DOI: 10.6084/m9.figshare.26672619.v1
title: Additional file 1 of Anti-hyperalgesic and anti-inflammatory effects of 4R-tobacco cembranoid in a mouse model of inflammatory pain

description: Additional file 1. Raw Data Table.
DOI: 10.6084/m9.figshare.26605381
title: Additional file 2 of A distributional regression approach to modeling the impact of structural and intermediary social determinants on communities burdened by tuberculosis in Eastern Amazonia – Brazil

description: Additional file 2.
DOI: 10.6084/m9.figshare.26605378.v1
title: Additional file 1 of A distributional regression approach to modeling the impact of structural and intermediary social determinants on communities burdened by tuberculosis in Eastern Amazonia – Brazil

description: Additional file 1.
DOI: 10.6084/m9.figshare.26570131
title: Additional file 2 of Genome-centric metagenomic insights into the role of Chloroflexi in anammox, activated sludge and methanogenic reactors

description: Additional file 2.
DOI: 10.6084/m9.figshare.26570131.v1
title: Additional file 2 of Genome-centric metagenomic insights into the role of Chloroflexi in anammox, activated sludge and methanogenic reactors

description: Additional file 2.
DOI: 10.15468/dl.6s7hnu
title: Occurrence Download

description: A dataset containing 0 species occurrences available in GBIF matching the query:
{
 "Geometry" : [
 "POLYGON ((148.573869 -32.596059, 148.573869 -32.598304, 148.580607 -32.598304, 148.580607 -32.596059, 148.573869 -32.596059))"
 ]
}

 The dataset includes 0 records from 0 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0067107-240626123714530/datasets/export for details.
DOI: 10.6084/m9.figshare.26605378
title: Additional file 1 of A distributional regression approach to modeling the impact of structural and intermediary social determinants on communities burdened by tuberculosis in Eastern Amazonia – Brazil

description: Additional file 1.
DOI: 10.15468/dl.e4snag
title: Occurrence Download

description: A dataset containing 5509 species occurrences available in GBIF matching the query:
{
 "TaxonKey" : [
 "is one of (Bowdichia virgilioides Kunth, Bowdichia kuhlmannii Ducke)"
 ]
}

 The dataset includes 5509 records from 213 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0067106-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.6084/m9.figshare.26605381.v1
title: Additional file 2 of A distributional regression approach to modeling the impact of structural and intermediary social determinants on communities burdened by tuberculosis in Eastern Amazonia – Brazil

description: Additional file 2.
DOI: 10.15468/dl.hp27sb
title: Occurrence Download

description: A dataset containing 311 species occurrences available in GBIF matching the query:
{
 "and" : [
 "BasisOfRecord is one of (Observation, Machine Observation, Human Observation)",
 "Continent is North America",
 "Geometry POLYGON((-104.81102 23.69737,-105.08365 23.3858,-105.02523 23.34037,-104.74611 23.63246,-104.81102 23.69737))"
 ]
}

 The dataset includes 311 records from 4 constituent datasets; see https://api.gbif.org/v1/occurrence/download/0067108-240626123714530/datasets/export for details.
 
Data from some individual datasets included in this download may be licensed under less restrictive terms.
DOI: 10.25318/3210001101-fra
title: Population agricole et travailleurs autonomes dans la population active classés selon le niveau de scolarité atteint, le sexe et l’âge, Couplage Agriculture–Population, 2016, inactif

description: Couplage Agriculture–Population, 2016. Exploitants agricoles, population agricole et travailleurs autonomes dans la population active classés selon le niveau de scolarité atteint, le sexe et l’âge.
DOI: 10.7294/25938412
title: Newt Pond Reclamation Experiment and Newt Life Stage Study data

description: Includes data for Newt Pond Reclamation Experiment and Newt Life Stage Study
The Newt Pond Reclamation experiment was conducted to better understand how the newt skin microbiome would respond and potentially recover post antibiotic disturbance when given access to environmental microbes. Newts were collected from the wild and swabbed to characterize their initial microbiomes before being subject to an antibiotic treatment. Post treatment, newts were swabbed and placed in mesh containers within their natural environment. Newts were subsequently swabbed to understand how their microbial communities shifted over time following antibiotic exposure. The sequences included are from the 16S rRNA gene v4 variable region.
The Newt Life Stage Study investigated variation in the newt skin bacterial microbiome across 4 life stages of newts, namely aquatic larvae, terrestrial juveniles, aquatic adults and terrestrial adults, using amplicon sequencing of the v4 region of the 16S rRNA gene.
DOI: 10.7294/25938412.v2
title: Newt Pond Reclamation Experiment and Newt Life Stage Study data

description: Includes data for Newt Pond Reclamation Experiment and Newt Life Stage Study
The Newt Pond Reclamation experiment was conducted to better understand how the newt skin microbiome would respond and potentially recover post antibiotic disturbance when given access to environmental microbes. Newts were collected from the wild and swabbed to characterize their initial microbiomes before being subject to an antibiotic treatment. Post treatment, newts were swabbed and placed in mesh containers within their natural environment. Newts were subsequently swabbed to understand how their microbial communities shifted over time following antibiotic exposure. The sequences included are from the 16S rRNA gene v4 variable region.
The Newt Life Stage Study investigated variation in the newt skin bacterial microbiome across 4 life stages of newts, namely aquatic larvae, terrestrial juveniles, aquatic adults and terrestrial adults, using amplicon sequencing of the v4 region of the 16S rRNA gene.