Stand. Genomic Sci. 2009 1:1
doi:10.4056/sigs.761
Complete genome sequence of Kytococcus sedentarius type strain (541T)

David Sims1, Thomas Brettin1,2, John C. Detter1, Cliff Han1, Alla Lapidus2, Alex Copeland2, Tijana Glavina Del Rio2, Matt Nolan2, Feng Chen1, Susan Lucas2, Hope Tice2, Jan-Fang Cheng2, David Bruce1, Lynne Goodwin1, Sam Pitluck2, Galina Ovchin-nikova2, Amrita Pati2, Natalia Ivanova2, Konstantinos Mavrommatis2, Amy Chen3, Krishna Palaniappan3, Patrik D'haeseleer2,4, Patrick Chain2,4, Jim Bristow2, Jonathan A. Eisen2,5, Victor Markowitz3, Philip Hugenholtz2, Susanne Schneider6, Markus Göker6, Rüdiger Pukall6, Nikos C. Kyrpides2, Hans-Peter Klenk6

1 Los Alamos National Laboratory, Bioscience Division, Los Alamos, New Mexico, USA
2 DOE Joint Genome Institute, Walnut Creek, California, USA
3 Biological Data Management and Technology Center, Lawrence Berkeley National Laboratory, Berkeley, California, USA
4 Lawrence Livermore National Laboratory, Livermore, California, USA
5 University of California Davis Genome Center, Davis, California, USA
6 DSMZ - German Collection of Microorganisms and Cell Cultures GmbH, Braunschweig, Germany

Corresponding author: Hans-Peter Klenk

Print publication date: July 20, 2009.

Abstract

Kytococcus sedentarius (ZoBell and Upham 1944) Stackebrandt et al. 1995 is the type strain of the species, and is of phylogenetic interest because of its location in the Dermacoccaceae, a poorly studied family within the actinobacterial suborder Micrococcineae. K. sedentarius is known for the production of oligoketide antibiotics as well as for its role as an opportunistic pathogen causing valve endocarditis, hemorrhagic pneumonia, and pitted keratolysis. It is strictly aerobic and can only grow when several amino acids are provided in the medium. The strain described in this report is a free-living, nonmotile, Gram-positive bacterium, originally isolated from a marine environment. Here we describe the features of this organism, together with the complete genome sequence, and annotation. This is the first complete genome sequence of a member of the family Dermacoccaceae and the 2,785,024 bp long single replicon genome with its 2639 protein-coding and 64 RNA genes is part of the Genomic Encyclopedia of Bacteria and Archaea project.

Keywords: mesophile, free-living, marine, aerobic, opportunistic pathogenic, Dermacoccaceae.

Introduction

Strain 541T (DSM 20547 = ATCC 14392 = JCM 11482 = CCM 314 and other culture collections) is the type strain of the species Kytococcus sedentarius, which is the type species of the genus Kytococcus [1]. Strain 541T was first described as Micrococcus sedentarius (ZoBell and Upham 1944) [2] and later emended as K. sedentarius in a taxonomic dissection of the genus Micrococcus [1]. The organism is of interest for its biotechnological potential as source of natural antibiotics (oligoketides), for its role as an opportunistic pathogen, and for its position in the tree of life, where it represents the scarcely populated genus Kytococcus (2 species) within in the actinobacterial family Dermacoccaceae [1] (Figure 1). K. sedentarius 541T was first isolated around 1944 from a marine environment [2], but strains of the species were also frequently isolated from human skin [7]. More recently, closely related strains were also isolated from culture-dependant environmental screenings of a non-saline alkaline groundwater environment in Cabeco de Vide in southern Portugal [8], screening for pelagic bacteria in South Korea [9], tropical marine sediments from the intertidal zone off the coast of the Republic Palau [10], from the ciliate Collinia sp.), an endoparasite of euphausiids from the Gulf of California (unpublished literature, GenBank record EU090136), and in a culture-independent analysis of the microbial burden and diversity in commercial airline cabins [11]. Screening of environmental genomic samples and surveys reported at the NCBI BLAST server indicated no closely related phylotypes that can be linked to the species or genus. Here we present a summary classification and a set of features for K. sedentarius strain 541T (Table 1), together with the description of the complete genomic sequencing and annotation.

Figure 1
Figure 1
Figure 1

Phylogenetic tree of K. sedentarius strain 541T with all type strains of the family Dermacoccaceae, inferred from 1,456 aligned 16S rRNA characters [3] under the maximum likelihood criterion [4,5]. The tree was rooted with four members of the neighboring family Intrasporangiaceae. The branches are scaled in terms of the expected number of substitutions per site. Numbers above branches are support values from 1,000 bootstrap replicates. Strains with a genome-sequencing project registered in GOLD [6] are printed in blue; published genomes in bold.


Table 1: Classification and general features of K. sedentarius strain 541T based on MIGS recommendations [12]
MIGS ID Property Term Evidence code
Current classification Domain Bacteria
Phylum Actinobacteria
Class Actinobacteria TAS [13]
Order Actinomycetales TAS [14]
Suborder Micrococcineae TAS [13]
Family Dermacoccaceae TAS [15]
Genus Kytococcus TAS [1]
Species Kytococcus sedentarius TAS [1]
Type strain 541
Gram stain positive TAS [1]
Cell shape spherical, predominantly in tetrads TAS [1]
Motility nonmotile TAS [1]
Sporulation non-sporulating TAS [1]
Temperature range mesophilic TAS [1]
Optimum temperature 28-36°C TAS [1]
Salinity nonhalophilic, but growth in media
up to 10% (w/v) NaCl
TAS [1]
MIGS-22 Oxygen requirement mandatory aerobe TAS [1]
Carbon source not reported
Energy source unknown, not starch NAS
MIGS-6 Habitat marine TAS [2]
MIGS-15 Biotic relationship free-living NAS
MIGS-14 Pathogenicity in rare cases TAS [16,17]
Biosafety level 1 TAS [18]
Isolation slide submerged in sea water TAS [2]
MIGS-4 Geographic location probably San Diego TAS [2]
MIGS-5 Sample collection time about or before 1944 TAS [2]
MIGS-4.1 MIGS-4.2 Latitude – Longitude not reported
MIGS-4.3 Depth not reported
MIGS-4.4 Altitude not reported

Evidence codes - IDA: Inferred from Direct Assay (first time in publication); TAS: Traceable Author Statement (i.e., a direct report exists in the literature); NAS: Non-traceable Author Statement (i.e., not directly observed for the living, isolated sample, but based on a generally accepted property for the species, or anecdotal evidence). These evidence codes are from the Gene Ontology project [19]. If the evidence code is IDA, then the property was directly observed, for a live isolate by one of the authors, or another expert mentioned in the acknowledgements.

Classification and features

K. sedentarius cells are spherical/coccoid and occur predominantly in tetrads which can be arranged in cubical packets [1] (Figure 2). Cells are described as Gram-positive, nonmotile, non-encapsulated, and not endospore-forming [1]. K. sedentarius 541T is strictly aerobic and chemoorganotrophic, requires methionine and other amino acids for growth, and grows well in NaCl at concentrations up to 10% (w/v) [1].

Figure 2
Figure 2
Figure 2

Scanning electron micrograph of K. sedentarius strain 541T (Manfred Rohde, Helmholtz Centre for Infection Biology, Braunschweig)


K. sedentarius (strain NK0508) is capable of degrading diphenylarsenic acid [20], but not starch [1], and does not produce acids from most carbohydrates and alcohols [1]. Its optimal growth temperature is 28-36°C. Nitrate is reduced to nitrite by some K. sedentarius strains [1]. K. sedentarius is not only described as the source of the oligoketide antibiotics monensin A and B [21], but has also been associated with pitted keratolysis [16], opportunistic infections, and fatal hemorrhagic pneumonia [17].

Figure 1 shows the phylogenetic neighborhood of K. sedentarius strain 541T in a 16S rRNA based tree. Analysis of the 16S rRNA gene copies in the genome of strain 541T differed by one nucleotide from each other, and by up to two nucleotides from the previously published 16S rRNA sequence generated from DSM 20547 (X87755).

Chemotaxonomy

The murein of K. sedentarius strain 541T contains L-Lys-Glu2, a variation of cell wall type A4α [1]. Mycolic acids and teichonic acids were not reported [1]. Strain 541T contains only completely unsaturated menaquinones with 8-11 isoprene subunits (MK8 to MK11), with MK8 dominating [1]. The major cellular fatty acids are methyl-branched chain iso-C17:1 and anteiso-C17:0, as well as the straight chain saturated C15:0 and C17:0 [1]. Phosphatidylglycerol, diphosphatidylglycerol, and phosphatidylinositol were identified as dominating polar lipids [1]. Reported cytochromes include aa3, c626, c550, b557, b561, and b564 [1].

Genome sequencing and annotation
Genome project history

This organism was selected for sequencing on the basis of its phylogenetic position, and is part of the GenomicEncyclopedia ofBacteria andArchaea project. The genome project is deposited in the Genome OnLine Database [6] and is deposited in GenBank. Sequencing, finishing and annotation were performed by the DOE Joint Genome Institute (JGI). A summary of the project information is shown in Table 2.

Table 2: Genome sequencing project information
MIGS ID Property Term
MIGS-31 Finishing quality Finished
MIGS-28 Libraries used Two genomic Sanger libraries: 8kb pMCL200 and fosmid pcc1Fos
libraries.
MIGS-29 Sequencing platforms ABI3730
MIGS-31.2 Sequencing coverage 17.3x Sanger
MIGS-30 Assemblers phrap
MIGS-32 Gene calling method Genemark 4.6b, tRNAScan-SE-1.23, infernal 0.81
Genbank ID ABUD00000000
Genbank Date of Release N/A
NCBI project ID 21067
GOLD ID Gc01042
Database: IMG-GEBA 2500901761
MIGS-13 Source material identifier DSM 20547
Project relevance Tree of Life, GEBA
Growth conditions and DNA isolation

K. sedentarius strain 541T, DSM20547, was grown in DSMZ medium 92 (3% trypticase soy broth, 0.3% yeast extract) at 30°C. DNA was isolated from 1-1.5 g of cell paste using Qiagen Genomic 500 DNA Kit (Qiagen, Hilden, Germany) with a modified protocol for cell lysis in first freezing for 20 min. (-70°C), then heating 5 min. (98°C), and cooling 15 min to 37°C; adding 1.5 ml lysozyme (standard: 0.3 ml, only), 1.0 ml achromopeptidase, 0.12 ml lysostaphine, 0.12 ml mutanolysine, 1.5 ml proteinase K (standard: 0.5 ml, only), followed by overnight incubation at 35°C.

Genome sequencing and assembly

The genome was sequenced using a combination of 8 kb and fosmid DNA libraries. All general aspects of library construction and sequencing performed at the JGI website. Draft assemblies were based on 60,742 total reads. The Phred/Phrap-/Consed software package was used for sequence assembly and quality assessment [22-24]. After the shotgun stage, reads were assembled with parallel phrap (High Performance Software, LLC). Possible mis-assemblies were corrected with Dupfinisher [25] or transposon bombing of bridging clones (Epicentre Biotechnologies, Madison, WI). Gaps between contigs were closed by editing in Consed, custom priming, or PCR amplification (Roche Applied Science, Indianapolis, IN). A total of 1,255 additional reactions were necessary to close gaps and to raise the quality of the finished sequence. The completed genome sequence of K. sedentarius 541T contains 61,582 reads. The error rate of the completed genome sequence is less than 1 in 100,000. Together all libraries provided > 17x coverage of the genome.

Genome annotation

Genes were identified using GeneMark [26] as part of the genome annotation pipeline in the Integrated Microbial Genomes Expert Review (IMG-ER) system [27], followed by a round of manual curation using JGI’s GenePRIMP pipeline. The predicted CDSs were translated and used to search the National Center for Biotechnology Information (NCBI) non-redundant database, UniProt, TIGRFam, Pfam, PRIAM, KEGG, COG, and InterPro databases. The tRNAScanSE tool [28] was used to find tRNA genes, whereas ribosomal RNAs were found by using the tool RNAmmer [29]. Other non-coding RNAs were identified by searching the genome for the Rfam profiles using INFERNAL (v0.81) [30]. Additional gene prediction analysis and manual functional annotation was performed within the Integrated Microbial Genomes (IMG) platform [31].

Metabolic network analysis

The metabolic Pathway/Genome Database (PGDB) was computationally generated using Pathway Tools software version 12.5 [32] and MetaCyc version 12.5 [33], based on annotated EC numbers and a customized enzyme name mapping file. It has undergone no subsequent manual curation and may contain errors, similar to a Tier 3 BioCyc PGDB [34].

Genome properties

The genome is 2,785,024 bp long and comprises one main circular chromosome with a 71.6% GC content (Table 3 and Figure 3). Of the 2,703 genes predicted, 2,639 were protein-coding genes, 64 encoded RNAs. Eighty-four pseudogenes were also identified. In addition, 72.1% of the genes were assigned with a putative function while the remaining ones were annotated as hypothetical proteins.

Table 3: Genome Statistics
Attribute Value % of Total
Genome size (bp) 2,785,024
DNA Coding region (bp) 2,558,989 91.88%
DNA G+C content (bp) 1,994,844 71.63%
Number of replicons 1
Extrachromosomal elements 0
Total genes 2703 100.00%
RNA genes 64 2.37%
rRNA operons 2
Protein-coding genes 2639 97.63%
Pseudo genes 84 3.11%
Genes with function prediction 1948 72.07%
Genes in paralog clusters 288 10.65%
Genes assigned to COGs 1851 68.48%
Genes assigned Pfam domains 1908 70.59%
Genes with signal peptides 539 19.94%
Genes with transmembrane helices 595 22.01%
CRISPR repeats 0 0
Figure 3
Figure 3
Figure 3

Graphical circular map of the genome. From outside to the center: Genes on forward strand (color by COG categories), Genes on reverse strand (color by COG categories), RNA genes (tRNAs green, rRNAs red, other RNAs black), GC content, GC skew.


The distribution of genes into COGs functional categories is presented in Table 4, and a cellular overview diagram is presented in Figure 4, followed by a summary of metabolic network statistics shown in Table 5.

Table 4: Number of genes associated with the 21 general COG functional categories
Code Value % Description
J 151 5.7 Translation
A 1 0.0 RNA processing and modification
K 143 5.4 Transcription
L 160 6.1 Replication, recombination and repair
B 2 0.1 Chromatin structure and dynamics
D 22 0.8 Cell cycle control, mitosis and meiosis
Y 0 0.0 Nuclear structure
V 56 2.1 Defense mechanisms
T 73 2.8 Signal transduction mechanisms
M 111 4.2 Cell wall/membrane biogenesis
N 2 0.1 Cell motility
Z 1 0.0 Cytoskeleton
W 0 0.0 Extracellular structures
U 27 1.0 Intracellular trafficking and secretion
O 64 2.4 Posttranslational modification, protein turnover, chaperones
C 99 3.8 Energy production and conversion
G 116 4.4 Carbohydrate transport and metabolism
E 185 7.0 Amino acid transport and metabolism
F 75 2.8 Nucleotide transport and metabolism
H 101 3.8 Coenzyme transport and metabolism
I 86 3.3 Lipid transport and metabolism
P 117 4.4 Inorganic ion transport and metabolism
Q 46 1.7 Secondary metabolites biosynthesis, transport and catabolism
R 229 8.7 General function prediction only
S 160 6.1 Function unknown
- 788 29.9 Not in COGs
Figure 4
Figure 4
Figure 4

Schematic cellular overview of all pathways of the K. sedentarius strain 541T metabolism. Nodes represent metabolites, with shape indicating class of metabolite. Lines represent reactions.


Table 5: Metabolic Network Statistics
Attribute Value
Total genes 2703
Enzymes 531
Enzymatic reactions 922
Metabolic pathways 185
Metabolites 662
Acknowledgements

We would like to gratefully acknowledge the help of Katja Steenblock (DSMZ) for growing K. sedentarius 541T cultures. This work was performed under the auspices of the US Department of Energy Office of Science, Biological and Environmental Research Program, and by the University of California, Lawrence Berkeley National Laboratory under contract No. DE-AC02-05CH11231, Lawrence Livermore National Laboratory under Contract No. DE-AC52-07NA27344, and Los Alamos National Laboratory under contract No. DE-AC02-06NA25396, as well as German Research Foundation (DFG)INST 599/1-1.

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10.4056/sigs.711311

Complete genome sequence of Stackebrandtia 
nassauensis type strain (LLR-40K-21T)
Munk et al.
Stand. Genomic Sci. 1(3) 1.
10.4056/sigs.47643

Complete genome sequence of Streptobacillus moniliformis type strain (9901T)
Nolan et al.
Stand. Genomic Sci. 1(3) 1.
10.4056/sigs.48727

Complete genome sequence of Streptosporangium roseum type strain (NI 9100T)
Nolan et al.
Stand. Genomic Sci. 2(1) 29.
10.4056/sigs.631049

Complete genome sequence of Desulfohalobium retbaense type strain (HR100T)
Spring et al.
Stand. Genomic Sci. 2(1) 38.
10.4056/sigs.581048

Complete genome sequence of Veillonella parvula type strain (Te3T)
Gronow et al.
Stand. Genomic Sci. 2(1) 57.
10.4056/sigs.521107

Complete genome sequence of Alicyclobacillus acidocaldarius type strain (104-IAT)
Mavromatis et al.
Stand. Genomic Sci. 2(1) 9.
10.4056/sigs.591104

Complete genome sequence of Gordonia bronchialis type strain (3410T)
Ivanova et al.
Stand. Genomic Sci. 2(1) 19.
10.4056/sigs.611106

Complete genome sequence of Segniliparus rotundus type strain (CDC 1076T)
Sikorski et al.
Stand. Genomic Sci. 2(2) 203.
10.4056/sigs.791633

Complete genome sequence of Chitinophaga pinensis type strain (UQM 2034T)
Glavina Del Rio et al.
Stand. Genomic Sci. 2(1) 87.
10.4056/sigs.661199

Complete genome sequence of Syntrophobotulus glycolicus type strain (FlGlyRT)
Han et al.
Stand. Genomic Sci. 4(3) 371.
10.4056/sigs.2004648

Complete genome sequence of Tsukamurella paurometabola type strain (no. 33T)
Munk et al.
Stand. Genomic Sci. 4(3) 342.
10.4056/sigs.1894556

Complete genome sequence of Rhodospirillum rubrum type strain (S1T)
Munk et al.
Stand. Genomic Sci. 4(3) 293.
10.4056/sigs.1804360

Complete genome sequence of Nakamurella multipartita type strain (Y-104T)
Tice et al.
Stand. Genomic Sci. 2(2) 168.
10.4056/sigs.721316

Complete genome sequence of Kribbella flavida type strain (IFO 14399T)
Pukall et al.
Stand. Genomic Sci. 2(2) 185.
10.4056/sigs.731321

Complete genome sequence of Thermocrinis albus type strain (HI 11/12T)
Wirth et al.
Stand. Genomic Sci. 2(2) 194.
10.4056/sigs.761490

Complete genome sequence of Spirosoma linguale type strain (1T)
Lail et al.
Stand. Genomic Sci. 2(2) 176.
10.4056/sigs.741334

Complete genome sequence of Conexibacter woesei type strain (ID131577T)
Pukall et al.
Stand. Genomic Sci. 2(2) 212.
10.4056/sigs.751339

Complete genome sequence of Sebaldella termitidis type strain (NCTC 11300T)
Harmon-Smith et al.
Stand. Genomic Sci. 2(2) 220.
10.4056/sigs.811799

Complete genome sequence of Marivirga tractuosa type strain (H-43T)
Pagani et al.
Stand. Genomic Sci. 4(2) 154.
10.4056/sigs.1623941

Non-contiguous finished genome sequence and contextual data of the filamentous soil bacterium Ktedonobacter racemifer type strain (SOSP1-21T)
Chang et al.
Stand. Genomic Sci. 5(1) 97.
10.4056/sigs.2114901

Complete genome sequence of the thermophilic, hydrogen-oxidizing Bacillus tusciae type strain (T2T) and reclassification in the new genus, Kyrpidia gen. nov. as Kyrpidia tusciae comb. nov. and emendation of the family Alicyclobacillaceae da Costa and Rainey, 2010.
Klenk et al.
Stand. Genomic Sci. 5(1) 121.
10.4056/sigs.2144922

Complete genome sequence of Tolumonas auensis type strain (TA 4T)
Chertkov et al.
Stand. Genomic Sci. 5(1) 112.
10.4056/sigs.2184986

Complete genome sequence of Desulfarculus baarsii type strain (2st14T)
Sun et al.
Stand. Genomic Sci. 3(3) 276.
10.4056/sigs.1243258

Complete genome sequence of Thermaerobacter marianensis type strain (7p75aT)
Han et al.
Stand. Genomic Sci. 3(3) 337.
10.4056/sigs.1373474

Complete genome sequence of Aminobacterium colombiense type strain (ALA-1T)
Chertkov et al.
Stand. Genomic Sci. 2(3) 280.
10.4056/sigs.902116

Complete genome sequence of Coraliomargarita akajimensis type strain (04OKA010-24T)
Mavromatis et al.
Stand. Genomic Sci. 2(3) 290.
10.4056/sigs.952166

Complete genome sequence of Brachyspira murdochii type strain (56-150T)
Pati et al.
Stand. Genomic Sci. 2(3) 260.
10.4056/sigs.831993

Complete genome sequence of Denitrovibrio acetiphilus type strain (N2460T)
Kiss et al.
Stand. Genomic Sci. 2(3) 270.
10.4056/sigs.892105

Complete genome sequence of Archaeoglobus profundus type strain (AV18T)
von Jan et al.
Stand. Genomic Sci. 2(3) 327.
10.4056/sigs.942153

Complete genome sequence of Thermosphaera aggregans type strain (M11TLT)
Spring et al.
Stand. Genomic Sci. 2(3) 245.
10.4056/sigs.821804

Complete genome sequence of Arcobacter nitrofigilis type strain (CIT)
Pati et al.
Stand. Genomic Sci. 2(3) 300.
10.4056/sigs.912121

Complete genome sequence of Haliangium ochraceum type strain (SMP-2T)
Ivanova et al.
Stand. Genomic Sci. 2(1) 96.
10.4056/sigs.69.1277

Complete genome sequence of Haloterrigena turkmenica type strain (4kT)
Saunders et al.
Stand. Genomic Sci. 2(1) 107.
10.4056/sigs.681272

Complete genome sequence of Intrasporangium calvum type strain (7 KIPT)
Glavina Del Rio et al.
Stand. Genomic Sci. 3(3) 294.
10.4056/sigs.1263355

Complete genome sequence of Hydrogenobacter thermophilus type strain (TK-6T)
Zeytun et al.
Stand. Genomic Sci. 4(2) 131.
10.4056/sigs.1463589

Complete genome sequence of Ilyobacter polytropus type strain (CuHbu1T)
Sikorski et al.
Stand. Genomic Sci. 3(3) 304.
10.4056/sigs.1273360

Complete genome sequence of Rhizobium leguminosarum bv. trifolii strain WSM1325, an effective microsymbiont of annual Mediterranean clovers.
Reeve et al.
Stand. Genomic Sci. 2(3) 347.
10.4056/sigs.852027

Complete genome sequence of Actinosynnema mirum type strain (101T)
Land et al.
Stand. Genomic Sci. 1(1) 46.
10.4056/sigs.21137

Complete genome sequence of Acidaminococcus fermentans type strain (VR4T)
Chang et al.
Stand. Genomic Sci. 3(1) 1.
10.4056/sigs.1002553

Complete genome sequence of Spirochaeta smaragdinae type strain (SEBR 4228T)
Mavromatis et al.
Stand. Genomic Sci. 3(2) 1.
10.4056/sigs.1143106

Complete genome sequence of Olsenella uli type strain (VPI D76D-27CT)
Göker et al.
Stand. Genomic Sci. 3(1) 76.
10.4056/sigs.1082860

Complete genome sequence of ‘Thermobaculum terrenum’ type strain (YNP1T)
Kiss et al.
Stand. Genomic Sci. 3(2) 153.
10.4056/sigs.1153107

Complete genome sequence of Acetohalobium arabaticum type strain (Z-7288T)
Sikorski et al.
Stand. Genomic Sci. 3(1) 57.
10.4056/sigs.1062906

Complete genome sequence of Ignisphaera aggregans type strain (AQ1.S1T)
Göker et al.
Stand. Genomic Sci. 3(1) 66.
10.4056/sigs.1072907

Complete genome sequence of Halomicrobium mukohataei type strain (arg-2T)
Tindall et al.
Stand. Genomic Sci. 1(3) 270.
10.4056/sigs.42644

Complete genome sequence of Vulcanisaeta distributa type strain (IC-017T)
Mavromatis et al.
Stand. Genomic Sci. 3(2) 117.
10.4056/sigs.1113067

Complete genome sequence of Arcanobacterium haemolyticum type strain (11018T)
Yasawong et al.
Stand. Genomic Sci. 3(2) 126.
10.4056/sigs.1123072

Complete genome sequence of Ferrimonas balearica type strain (PATT)
Nolan et al.
Stand. Genomic Sci. 3(2) 174.
10.4056/sigs.1161239

Complete genome sequence of Syntrophothermus lipocalidus type strain (TGB-C1T)
Djao et al.
Stand. Genomic Sci. 3(3) 268.
10.4056/sigs.1233249

Complete genome sequence of Truepera radiovictrix type strain (RQ-24T)
Ivanova et al.
Stand. Genomic Sci. 4(1) 91.
10.4056/sigs.1563919

The State of Standards in Genomic Sciences
Garrity
Stand. Genomic Sci. 5(3) 262.
10.4056/sigs.2515706

Complete genome sequence of the halophilic and highly halotolerant Chromohalobacter salexigens type strain (1H11T)
Copeland et al.
Stand. Genomic Sci. 5(3) 379.
10.4056/sigs.2285059

Culturable bacteria isolated from snow cores along the 1300 km traverse from Zhongshan Station to Dome A, East Antarctica
Yan et al.
Extremophiles () .
10.1007/s00792-012-0434-3




Acknowledgements

We would like to gratefully acknowledge the support of many members of the Genomic Standards Consortium, the broader genomic science community, and those who have indicated their willingness to serve as editors, reviewers and contributors.

Funding for SIGS is provided by a grant from the Office of the Vice President for Research and Graduate Studies at Michigan State University, the Michigan State University Foundation, and the US Department of Energy Biological and Environmental Research DE-FG02-08ER64707.

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