Metagenome-assembled genome: private_X16_metawrap_... - BioSample

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Metagenome-assembled genome: private_X16_metawrap_bin.10

Identifiers: BioSample: SAMEA115935396; SRA: ERS20894099

Organism: uncultured bacterium
cellular organisms; Bacteria; environmental samples

Attributes

broad-scale environmental context	Thallus of Umbilicaria americana lichen
collection date	not provided
environmental medium	lichen thallus
geographic location	USA
investigation type	metagenome-assembled genome
isolation source	lichen metagenome
project name	Lichen metagenomes produced de novo for Tagridzhanova et al. 2023. Evidence for a core set of microbial lichen symbionts from a global survey of metagenomes. biorXiv. Lichens are the archetypal symbiosis and the one for which the term was coined. Although application of shotgun sequencing techniques has shown that many lichen symbioses can harbour more symbionts than the canonically recognized fungus and photobiont, no global census of lichen organismal composition has been undertaken. Here, we analyze the genome content of 437 lichen metagenomes from six continents, and show that four bacterial lineages occur in the majority of lichen symbioses, at a frequency on par with algal photobionts. A single bacterial genus, Lichenihabitans, occurs in nearly one-third of all lichens sampled. Genome annotations from the most common lichen bacterial symbionts suggest they are aerobic anoxygenic photoheterotrophs and produce essential vitamins, but do not fix nitrogen. We also detected secondary basidiomycete symbionts in about two-thirds of analyzed metagenomes. Our survey suggests a core set of four to seven microbial symbionts are involved in forming and maintaining lichen symbioses.
sample name	private_X16_metawrap_bin.10
ENA first public	2024-09-19
ENA-CHECKLIST	ERC000047
INSDC center name	Spribille Lab
INSDC status	public
Submitter Id	private_X16_metawrap_bin.10
assembly quality	Many fragments with little to no review of assembly other than reporting of standard assembly statistics
assembly software	metaSPAdes_v3.13
binning parameters	default
binning software	metaWRAP_v.1.2
completeness score	73.3
completeness software	CheckM_v1.1.3
contamination score	0.0
geographic location (latitude)	not provided
geographic location (longitude)	not provided
local environmental context	lichen thallus
metagenomic source	lichen metagenome
sample derived from	SAMEA112344887
scientific_name	uncultured bacterium
sequencing method	Illumina HiSeq 2500
taxonomic identity marker	multi-marker approach