bioRxiv (Cold Spring Harbor Laboratory),
Journal Year:
2023,
Volume and Issue:
unknown
Published: June 24, 2023
Abstract
The
plastid-targeted
transcription
factor
Whirly1
(
WHY1
)
has
been
implicated
in
chloroplast
biogenesis,
plastid
genome
stability,
and
fungal
defense
response,
which
together
represent
characteristics
of
interest
for
the
study
autotrophic
losses
across
angiosperms.
While
gene
loss
nuclear
genomes
well
studied
mycoheterotrophic
plants,
evolution
molecular
mechanisms
impacting
stability
are
completely
unknown.
Here
we
characterize
four
early-transitional
orchid
species
genus
Corallorhiza
by
synthesizing
results
phylogenetic,
transcriptomic,
comparative
genomic
analyses
with
sequences
sampled
from
21
orders
We
found
an
increased
number
non-canonical
isoforms
assembled
all
but
greenest
species,
including
intron
retention
some
isoforms.
Within
,
phylotranscriptomic
revealed
presence
tissue-specific
differential
expression
only
most
photosynthetically
capable
a
coincident
increase
fully
species.
Gene-
codon-level
tests
selective
regimes
did
not
infer
significant
signal
either
relaxed
selection
or
episodic
diversifying
so
late-stage
full
orchids
Epipogium
aphyllum
Gastrodia
elata
.
Taken
together,
this
provides
comprehensive
view
angiosperms
to
date.
Our
reveal
that
splicing
alteration
decreased
deceased
plastome
group
these
changes
may
precede
shifts
observed
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(10), P. 2421 - 2421
Published: Oct. 19, 2024
Plants
encounter
various
stresses
in
their
natural
environments
and
can
effectively
respond
to
only
one
stress
at
a
time.
Through
complex
gene
network,
transcription
factors
(TFs)
such
as
WRKY
TFs
regulate
diverse
array
of
responses.
The
clarification
the
structural
characteristics
proteins,
along
with
recent
advancements
molecular
dynamics
simulations,
has
shed
light
on
formation,
stability,
interactions
DNA–protein
complexes.
This
provided
novel
viewpoint
regarding
control
TFs.
investigation
superfamilies,
encompassing
historical
development,
diversity,
evolutionary
patterns,
become
feasible
due
transcriptome
approach’s
capacity
provide
extensive
comprehensive
transcripts.
significance
lies
pivotal
role
within
several
signaling
cascades
regulatory
networks
that
influence
plant
defense
present
review
summarizes
functional
aspects
high-volume
sequence
data
from
different
species
studied
date.
Moreover,
comparative
analysis
approach
was
utilized
determine
functions
identified
response
both
abiotic
biotic
stresses,
revealed
through
numerous
studies
species.
results
this
will
be
understanding
events
context
climate
change,
incorporating
new
scientific
evidence
propose
an
innovative
viewpoint.
Plant Stress,
Journal Year:
2024,
Volume and Issue:
13, P. 100526 - 100526
Published: June 28, 2024
The
WRKY
gene
family
consists
of
unique
transcription
factors
(TFs)
found
exclusively
in
plants.
These
TFs
play
a
crucial
role
regulating
how
plants
respond
to
various
abiotic
stresses,
such
as
saline-alkaline
conditions,
temperature
fluctuations,
drought,
UV
radiation
and
others.
Scientists
have
been
progressively
studying
the
roles
mechanisms
several
plant
species,
including
both
model
essential
agricultural
crops.
This
study
focus
has
emerged
due
understanding
that
alkaline
saline
soil
stressors
considerably
impede
global
productivity.
Multiple
research
efforts
underscored
significant
biological
functions
assisting
coping
with
challenges,
particularly
enhancing
their
ability
withstand
alkaline-salt
stress.
review
aims
investigate
structural
capabilities
impact
on
responses
salt
stresses.
Additionally,
it
seeks
elucidate
these
alleviating
diverse
biotic
stressors.
objective
this
is
provide
comprehensive
insights
into
current
state
field
importance
Frontiers in Plant Science,
Journal Year:
2024,
Volume and Issue:
15
Published: June 28, 2024
The
plastid-targeted
transcription
factor
Whirly1
(
WHY1
)
has
been
implicated
in
chloroplast
biogenesis,
plastid
genome
stability,
and
fungal
defense
response,
which
together
represent
characteristics
of
interest
for
the
study
autotrophic
losses
across
angiosperms.
While
gene
loss
nuclear
genomes
well
studied
mycoheterotrophic
plants,
evolution
molecular
mechanisms
impacting
stability
is
completely
unknown.
Here,
we
characterize
four
early
transitional
orchid
species
genus
Corallorhiza
by
synthesizing
results
phylogenetic,
transcriptomic,
comparative
genomic
analyses
with
sequences
sampled
from
21
orders
We
found
an
increased
number
non-canonical
isoforms
assembled
all
but
greenest
species,
including
intron
retention
some
isoforms.
Within
,
phylotranscriptomic
revealed
presence
tissue-specific
differential
expression
only
most
photosynthetically
capable
a
coincident
increase
fully
species.
Gene-
codon-level
tests
selective
regimes
did
not
infer
significant
signal
either
relaxed
selection
or
episodic
diversifying
so
late-stage
full
orchids
Epipogium
aphyllum
Gastrodia
elata
.
Additionally,
nucleotide
substitutions
that
likely
impact
function
such
as
nonsense
mutations,
were
observed
mycoheterotrophs.
propose
our
findings
suggest
splicing
changes
may
precede
shifts
inferred
therefore
does
support
primary
role
transition
to
mycoheterotrophy
Orchidaceae.
Taken
together,
this
provides
comprehensive
view
angiosperms
date.
Phytopathology Research,
Journal Year:
2025,
Volume and Issue:
7(1)
Published: Feb. 10, 2025
Abstract
Transcription
factors
(TFs)
play
crucial
roles
in
plant
development
and
pathogen
defense.
However,
viruses
can
exploit
TFs
to
facilitate
their
infection
or
transmission.
In
this
study,
we
confirmed
the
βC1
proteins,
encoded
by
tobacco
curly
shoot
virus
(TbCSV)-
tomato
yellow
leaf
curl
China
(TYLCCNV)-associated
betasatellites,
interacted
with
GLABROUS1
enhancer
binding
protein
(GeBP)
from
solanaceous
plants
including
Nicotiana
benthamiana
,
Solanum
lycopersicum
S.
tuberosum
Capsicum
annuum
.
Further
analysis
verified
nuclear
localization,
homodimerization,
DNA-binding
ability
of
GeBP
TFs,
along
its
interaction
nucleus.
PVX-mediated
overexpression
NbGeBP
showed
no
effect
on
accumulation
viral
betasatellite
DNAs
N.
after
TbCSV
heterologous
betasatellite,
malvastrum
vein
associated
(MaYVB),
homologous
TbCSB.
both
MaYVV
caused
a
decrease
expression
during
early
stages
infection,
regardless
presence
implying
that
might
role
infection.
TbCSV/TbCSB
TYLCCNV/TYLCCNB
infect
many
plants,
proteins
interact
TbCSB
TYLCCNB.
The
yeast
two-hybrid
bimoleccular
fluorescence
complementation
assays
AtGeBP
Arabidopsis
thaliana
could
not
βC1,
revealing
GeBP-βC1
interactions
only
exist
plants.
Importantly,
MaYVB,
which
was
almost
reported
natural
GeBP,
suggesting
potential
monopartite
begomovirus
BMC Plant Biology,
Journal Year:
2025,
Volume and Issue:
25(1)
Published: Feb. 28, 2025
The
WRKY
gene
family
plays
a
significant
role
in
plant
growth,
development,
and
responses
to
biotic
abiotic
stresses.
However,
the
of
has
not
been
reported
Amaranthus
hypochondriacus.
This
study
presents
comprehensive
genome-wide
analysis
grain
amaranth
(A.
hypochondriacus
L.),
resilient
crop
known
for
its
high
nutritional
value
adaptability
challenging
environments.
In
this
study,
55
genes
(AhyWRKY1-55)
were
identified
A.
distributed
unevenly
across
16
scaffolds.
Of
these,
50
contained
conserved
domains
classified
into
three
main
groups.
Group
II
was
further
divided
five
subgroups
(IIa-IIe)
based
on
phylogenetic
analysis,
with
each
clade
being
well
supported
by
motifs.
Additionally,
structure
revealed
variations
exon-intron
organization.
contrast,
motif
showed
presence
that
similar
within
group
but
differed
between
groups,
suggesting
their
functional
diversity.
Cis-acting
elements
related
growth
development
light,
hormones,
stress
identified.
Synteny
34
(61.8%)
originated
from
tandem
duplication,
indicating
duplication
expansion
family.
Protein-protein
interaction
suggested
AhyWRKY3,
AhyWRKY27,
AhyWRKY28,
AhyWRKY36,
AhyWRKY52
hub
involved
complex
protein
network.
Using
silico
real-time
quantitative
PCR,
expression
tissue-
condition-specific
patterns
AhyWRKY
genes.
Notably,
under
drought
stress,
AhyWRKY39,
AhyWRKY40,
AhyWRKY54,
AhyWRKY01
increased
expression,
while
salt
AhyWRKY49,
AhyWRKY8
upregulated
at
30
days,
these
may
play
key
response
salinity
stress.
present
provides
valuable
insights
organization
evolutionary
amaranth.
It
also
identifies
putative
candidate
conferring
tolerance.
Overall,
lays
foundation
validation
genes,
facilitating
exploitation
genetic
improvement
programs
develop
stress-resilient
varieties.
Stress Biology,
Journal Year:
2025,
Volume and Issue:
5(1)
Published: May 20, 2025
Abstract
The
Cucurbitaceae
family
includes
a
wide
range
of
economically
important
fruits
and
vegetables;
however,
the
laborious
highly
inefficient
genetic
transformation
efficacy
cucurbits
has
hindered
exploration
their
gene
functions.
Virus-induced
silencing
(VIGS)
technology,
employed
from
antiviral
RNA
defense,
emerged
as
viable
alternative
for
high-throughput
study
plant
function.
In
this
study,
we
successfully
established
VIGS
system
utilizing
Trichosanthes
mottle
mosaic
virus
(TrMMV),
new
member
genus
Tobamovirus
.
We
demonstrated
high
durability
mediated
by
TrMMV-VIGS
vector
in
Nicotiana
benthamiana
,
well
several
cucurbit
species,
including
Cucurbita
pepo
Cucumis
sativus
C.
lanatus
melo
insertion
90–400
bp
fragments
into
led
to
effective
target
both
with
notably
higher
efficiency
observed
Furthermore,
induced
pronounced
photobleaching
phenotype
flowers
underscoring
its
potential
application
functional
genomic
research
concerning
floral
traits
particular
species.
Taken
together,
developed
herein
will
facilitate
rapid
identification
functions
crops.