Insights Into Phylogeny, Diversity and Functional Potential of Poseidoniales Viruses
Environmental Microbiology,
Journal Year:
2025,
Volume and Issue:
27(1)
Published: Jan. 1, 2025
ABSTRACT
Viruses
infecting
archaea
play
significant
ecological
roles
in
marine
ecosystems
through
host
infection
and
lysis,
yet
they
have
remained
an
underexplored
component
of
the
virosphere.
In
this
study,
we
recovered
451
archaeal
viruses
from
a
subtropical
estuary,
identifying
63
that
are
associated
with
dominant
order
Poseidoniales
(Marine
Group
II
Archaea).
Phylogenetic
analyses
subset
complete
nearly‐complete
viral
genomes
assigned
these
to
Magrovirales
,
lineage
viruses,
identified
novel
group
distinct
.
Utilising
demarcation
criteria
established
for
classification
tailed
propose
two
families
within
Magrovirales:
Apasviridae
(magrovirus
A),
comprising
genera
Agnivirus
Savitrvirus,
Krittikaviridae
E)
encompassing
genus
Velanvirus.
Additionally,
new
order,
named
Adrikavirales,
which
includes
Vyasavirus.
Our
detailed
genomic
characterisation
lineages
revealed
genes
involved
assembly
egress,
such
as
those
responsible
creating
holin
rafts
lyse
cell
membranes,
feature
predominantly
known
bacteriophages.
Furthermore,
broad
spectrum
auxiliary
metabolic
genes,
suggesting
can
modulate
metabolism.
Collectively,
our
findings
substantially
enhance
current
understanding
diversity
functional
potential
viruses.
Language: Английский
ICTV Virus Taxonomy Profile: Aoguangviridae 2023
Journal of General Virology,
Journal Year:
2023,
Volume and Issue:
104(11)
Published: Nov. 27, 2023
The
family
Aoguangviridae
includes
dsDNA
viruses
that
have
been
associated
with
marine
archaea.
Currently,
members
of
this
virus
are
known
through
metagenomics.
Virions
predicted
to
consist
an
icosahedral
capsid
and
a
helical
tail,
characteristic
in
the
class
Caudoviricetes
.
Aoguangviruses
some
largest
genomes
among
archaeal
possess
most
components
DNA
replication
machinery
as
well
auxiliary
functions.
species
Aobingvirus
yangshanense
Many
unclassified
relatives
group,
referred
‘magroviruses’,
discovered
by
metagenomics
globally
distributed
samples.
This
is
summary
International
Committee
on
Taxonomy
Viruses
(ICTV)
Report
,
which
available
at
ictv.global/report/aoguangviridae
Language: Английский
Discovery and characterization of complete genomes of 38 head-tailed proviruses in four predominant phyla of archaea
Microbiology Spectrum,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Nov. 15, 2024
Archaea
play
a
significant
role
in
natural
ecosystems
and
the
human
body.
Archaeal
viruses
exert
considerable
influence
on
structure
composition
of
archaeal
communities
their
associated
ecological
environments.
The
present
study
revealed
complete
genomes
38
head-tailed
proviruses
through
comprehensive
data
mining.
hosts
these
were
identified
as
belonging
to
following
four
dominant
phyla:
Language: Английский