EMBO Reports,
Journal Year:
2023,
Volume and Issue:
24(9)
Published: July 20, 2023
Plants
interact
with
a
diversity
of
microorganisms
that
influence
their
growth
and
resilience,
they
can
therefore
be
considered
as
ecological
entities,
namely
"plant
holobionts,"
rather
than
singular
organisms.
In
plant
holobiont,
the
assembly
above-
belowground
microbiota
is
ruled
by
host,
microbial,
environmental
factors.
Upon
microorganism
perception,
plants
activate
immune
signaling
resulting
in
secretion
factors
modulate
composition.
Additionally,
metabolic
interdependencies
antagonism
between
microbes
are
driving
forces
for
community
assemblies.
We
argue
complex
plant-microbe
intermicrobial
interactions
have
been
selected
during
evolution
may
promote
survival
fitness
associated
holobionts.
As
part
this
process,
evolved
metabolite-mediated
strategies
to
selectively
recruit
beneficial
microbiota.
Some
these
members
show
host-adaptation,
from
which
mutualism
rapidly
arise.
also
co-evolved
antagonistic
activities
restrict
proliferation
high
pathogenic
potential
prevent
disease
development.
Co-evolution
within
holobionts
thus
ultimately
drives
performance.
Science,
Journal Year:
2021,
Volume and Issue:
373(6555), P. 655 - 662
Published: Aug. 5, 2021
We
report
de
novo
genome
assemblies,
transcriptomes,
annotations,
and
methylomes
for
the
26
inbreds
that
serve
as
founders
maize
nested
association
mapping
population.
The
number
of
pan-genes
in
these
diverse
genomes
exceeds
103,000,
with
approximately
a
third
found
across
all
genotypes.
results
demonstrate
ancient
tetraploid
character
continues
to
degrade
by
fractionation
present
day.
Excellent
contiguity
over
repeat
arrays
complete
annotation
centromeres
revealed
additional
variation
major
cytological
landmarks.
show
combining
structural
single-nucleotide
polymorphisms
can
improve
power
quantitative
studies.
also
document
at
level
DNA
methylation
unmethylated
regions
are
enriched
cis-regulatory
elements
contribute
phenotypic
variation.
Nature Communications,
Journal Year:
2020,
Volume and Issue:
11(1)
Published: Feb. 20, 2020
Abstract
Despite
hundreds
of
sequenced
Arabidopsis
genomes,
very
little
is
known
about
the
degree
genomic
collinearity
within
single
species,
due
to
low
number
chromosome-level
assemblies.
Here,
we
report
reference-quality
assemblies
seven
thaliana
accessions
selected
across
its
global
range.
Each
genome
reveals
between
13–17
Mb
rearranged,
and
5–6
non-reference
sequences
introducing
copy-number
changes
in
~5000
genes,
including
~1900
genes.
Quantifying
genomes
~350
euchromatic
regions,
where
accession-specific
tandem
duplications
destroy
genomes.
These
hotspots
rearrangements
are
characterized
by
reduced
meiotic
recombination
hybrids
genes
implicated
biotic
stress
response.
This
suggests
that
undergo
altered
evolutionary
dynamics,
as
compared
rest
genome,
which
mostly
based
on
accumulation
new
mutations
not
existing
variation,
thereby
enable
a
quick
response
stress.
Cell Research,
Journal Year:
2022,
Volume and Issue:
32(10), P. 878 - 896
Published: July 12, 2022
Pan-genomes
from
large
natural
populations
can
capture
genetic
diversity
and
reveal
genomic
complexity.
Using
de
novo
long-read
assembly,
we
generated
a
graph-based
super
pan-genome
of
rice
consisting
251-accession
panel
comprising
both
cultivated
wild
species
Asian
African
rice.
Our
reveals
extensive
structural
variations
(SVs)
gene
presence/absence
variations.
Additionally,
our
enables
the
accurate
identification
nucleotide-binding
leucine-rich
repeat
genes
characterization
their
inter-
intraspecific
diversity.
Moreover,
uncovered
grain
weight-associated
SVs
which
specify
traits
by
affecting
expression
nearby
genes.
We
characterized
variants
associated
with
submergence
tolerance,
seed
shattering
plant
architecture
found
independent
selection
for
common
set
that
drove
adaptation
domestication
in
This
facilitates
pinpointing
lineage-specific
haplotypes
trait-associated
provides
insights
into
evolutionary
events
have
shaped
various
species.
Journal of Experimental Botany,
Journal Year:
2020,
Volume and Issue:
72(1), P. 36 - 56
Published: Sept. 7, 2020
The
aerial
portion
of
a
plant,
namely
the
leaf,
is
inhabited
by
pathogenic
and
non-pathogenic
microbes.
leaf's
physical
chemical
properties,
combined
with
fluctuating
often
challenging
environmental
factors,
create
surfaces
that
require
high
degree
adaptation
for
microbial
colonization.
As
consequence,
specific
interactive
processes
have
evolved
to
establish
plant
leaf
niche.
Little
known
about
impact
host
immune
system
on
phyllosphere
colonization
These
organisms
can
trigger
basal
defenses
benefit
priming
enhanced
resistance
pathogens.
In
most
disease
responses,
signals
are
recognized
extra-
or
intracellular
receptors.
interactions
tend
be
species
it
unclear
how
they
shape
communities.
natural
habitats,
microbe-microbe
also
important
shaping
To
protect
resources,
colonizers
developed
direct
antagonistic
manipulation
strategies
fight
competitors.
Phyllosphere-colonizing
microbes
respond
abiotic
biotic
fluctuations
therefore
an
resource
adaptive
protective
traits.
Understanding
complex
regulatory
host-microbe-microbe
networks
needed
transfer
current
knowledge
biotechnological
applications
such
as
plant-protective
probiotics.
Science,
Journal Year:
2022,
Volume and Issue:
377(6607)
Published: Aug. 11, 2022
Many
organisms
have
evolved
specialized
immune
pattern-recognition
receptors,
including
nucleotide-binding
oligomerization
domain-like
receptors
(NLRs)
of
the
STAND
superfamily
that
are
ubiquitous
in
plants,
animals,
and
fungi.
Although
roles
NLRs
eukaryotic
immunity
well
established,
it
is
unknown
whether
prokaryotes
use
similar
defense
mechanisms.
Here,
we
show
antiviral
(Avs)
homologs
bacteria
archaea
detect
hallmark
viral
proteins,
triggering
Avs
tetramerization
activation
diverse
N-terminal
effector
domains,
DNA
endonucleases,
to
abrogate
infection.
Cryo-electron
microscopy
reveals
sensor
domains
recognize
conserved
folds,
active-site
residues,
enzyme
ligands,
allowing
a
single
receptor
wide
variety
viruses.
These
findings
extend
paradigm
pattern
recognition
pathogen-specific
proteins
across
all
three
life.
Nature Genetics,
Journal Year:
2022,
Volume and Issue:
54(3), P. 342 - 348
Published: March 1, 2022
Abstract
Potato
is
the
most
widely
produced
tuber
crop
worldwide.
However,
reconstructing
four
haplotypes
of
its
autotetraploid
genome
remained
an
unsolved
challenge.
Here,
we
report
3.1
Gb
haplotype-resolved
(at
99.6%
precision),
chromosome-scale
assembly
potato
cultivar
‘Otava’
based
on
high-quality
long
reads,
single-cell
sequencing
717
pollen
genomes
and
Hi-C
data.
Unexpectedly,
~50%
was
identical-by-descent
due
to
recent
inbreeding,
which
contrasted
by
highly
abundant
structural
rearrangements
involving
~20%
genome.
Among
38,214
genes,
only
54%
were
present
in
all
with
average
3.2
copies
per
gene.
Taking
leaf
transcriptome
as
example,
11%
genes
differently
expressed
at
least
one
haplotype,
where
25%
them
likely
regulated
through
allele-specific
DNA
methylation.
Our
work
sheds
light
breeding
history
potato,
functional
organization
tetraploid
has
potential
strengthen
future
genomics-assisted
breeding.
Plant Communications,
Journal Year:
2019,
Volume and Issue:
1(1), P. 100016 - 100016
Published: Dec. 18, 2019
The
study
of
plant
diseases
is
almost
as
old
agriculture
itself.
Advancements
in
molecular
biology
have
given
us
much
more
insight
into
the
immune
system
and
how
it
detects
many
pathogens
plants
may
encounter.
Members
primary
family
resistance
(R)
proteins,
NLRs,
contain
three
distinct
domains,
appear
to
use
several
different
mechanisms
recognize
pathogen
effectors
trigger
immunity.
Understanding
process
NLR
recognition
activation
has
been
greatly
aided
by
advancements
structural
studies,
with
ZAR1
recently
becoming
first
full-length
be
visualized.
Genetic
biochemical
analysis
identified
critical
components
for
homeostasis
control.
increased
helper
NLRs
also
provided
insights
downstream
signaling
pathways
NLRs.
This
review
summarizes
progress
last
decades
on
research,
focusing
mechanistic
understanding
that
achieved.